The Spiraling Homestead

Friday, November 20, 2009

More on Urban Farming


Do you dream of an organic garden, but don’t have a yard? A flock of chicks, perhaps, but don’t have a yard? Home-grown food, and lower grocery bills (but, alas, no yard!)? Dream no more, because you can have it, and without quitting your job, trading your bus pass for a pickup, or moving to the rural north.

A new wave of farming is happening in a city near you. While true, Old MacDonald had a farm (ee-i-ee-i-o), his offspring have some urban fish to fry. They’re working off loans, and can’t necessarily afford a parcel of land. They’re young parents who want to save money on cherry tomatoes. They’re newlyweds paying off healthcare debt, and growing taters in their trashcan. They’re students avoiding crappy dining plans. They’re urban farmers. Plain and simple.

In Fresh Food From Small Spaces: The Square-Inch Gardener’s Guide to Year-Round Growing, Fermenting, and Sprouting, author R. J. Ruppenthal turns a seemingly anti-urban idea—that farming has to be done outside, with a red barn and rolling fields of wheat—on its head. Because urbanites, too, can grow their own food indoors, in cramped spaces, and without access to land! For real.

So without further ado, I give you Ruppenthal’s comprehensive “how-to” info for growing fresh food in the absence of open land; it’s here for the taking. Nom nom. Here’s my discussion with him:

Q. Without the luxury of land or space, is it really possible for someone to grow and produce their own food?

A. You do not need much space to grow some of your own food. If you live in an apartment, condo, or townhouse, you might not think that you have enough space to grow anything, but my goal is to change your mind on that. You can grow nutritious sprouts on a counter top, salad greens on a windowsill, dwarf fruit trees on a patio, tomatoes on a balcony, and much more. Most vegetables, and even fruit trees and berry bushes, can thrive when grown in containers. Indoors, try mushrooms, sprouts, and fermented cultures such as yogurt, kefir, kombucha, sauerkraut, and kimchi.

Q. What are the top five things a city resident needs to know about urban gardening?

A. First, you need to know that you CAN grow a lot of different food crops in limited spaces, even in apartments, condos, townhouses, and other small homes. I described some of the possibilities above, and there are more in my book. Hopefully, you will try some of these and also come up with new ideas on your own, as many of my readers have done. Second, start with something that is relatively trouble-free (such as salad greens, peas, or even tomatoes) and work up from there. You will learn a lot from your successes and your failures. If you try some simple crops and do everything you can (such as provide good soil and water) to ensure their success, then you WILL experience some success. Third, do not be afraid to fail. All of us have our hits and misses. Sometimes you forget to water or you planted the wrong variety for your climate, or for whatever reason, a particular plant simply was not happy. A lot of people would quit after an initial failure, but I hope you will stick with it. The only difference between a “black thumb” gardener and a “green thumb” gardener is that green thumbs learn from their mistakes, try again, and keep trying until they get it right. Then they replicate, and build upon, their successes. A black thumb gardener would quit after the first failure or two, not understanding that there is a learning curve associated with gardening, just as there is with anything else. Stick with it and you will succeed.

Fourth, people do not realize that they can build a garden bed directly on top of concrete, stone, or rocky soil. Almost anything can grow well in containers, but even a patio, driveway, or walkway can be converted to a productive garden bed by building the soil up (as opposed to digging down, which you would not be able to do without a jackhammer). I built two beds on top of my patio, and today, I cannot tell the difference between what is growing on them and what is growing in my soil-based beds. Twelve inches of soil is deep enough to grow almost anything. I’ve had two kale plants that each grew nearly six feet tall on those patio beds, plus peas, chard, beets, lettuce, and a few potatoes. I believe that this really increases the available growing space in cities; so much of our good space is paved over, but it is not longer off-limits to creative gardeners!

Fifth, try to reuse your resources in the garden. I wash my produce in a bowl or basin, and then dump that water back into the garden. It conserves water and saves a small amount of good soil from going down the drain. Then compost your food scraps along with any coffee grounds, newspapers, cardboard, and old plant material. Start a compost pile or buy a tumbler, bin, or worm composter. Check and see whether your city or county provides discounts or free bins for people to compost. Each year you will need to continually add organic matter to your garden soil, and compost is a wonderful source of both organic matter and soil nutrients. For plant fertilizer, though, do not rely on your own compost: you will need to add some organic fertilizer as well, which is available from your local nursery. Most kinds have a base of manure or seed meal for nitrogen, plus natural sources of phosphorus and potassium, which are all key plant nutrients. Kelp extract makes a great supplemental source for both trace minerals and natural growth boosters.

Q. If one family could grow one type of food in their small space—in order to save money—what would be the most viable option?

A. I would recommend trying something that is both simple and productive. For a survivalist crop, nothing beats potatoes (and homegrown potatoes taste great!). You would need fields of grain to feed the family, but you can grow a meaningful amount of potatoes in a pretty small space. Spuds pack more calories per square foot of soil than any other crop. They can grow in most climates and in most soils (even poor soils). You can store them for months at a time. You absolutely do not need ground soil to grow potatoes, and even though I have some ground space available, I now grow all my potatoes in containers. So far, all of my container-grown spuds have been completely pest-free and disease-free, so I am able to use the smaller potatoes as seed potatoes for the next crop. Some people grow spuds in garbage cans, stacked tires, wire fencing rolls, and in other unique structures. They are quite prolific and hard to kill, so be creative. Even if you do not treat the plants well (forgetting to water or fertilize as often as you should), you are likely to harvest at least a few pounds per square foot. You can improve your harvest greatly by mixing some compost into the soil, keeping the pH pretty low (by adding a few scoops of peat or pine needles), watering regularly to keep the soil barely moist, AND fertilizing regularly with an organic fertilizer that includes healthy amounts of both phosphorus (P) and potassium/potash (K). Do not use a high nitrogen fertilizer, as this will make the plant grow too vigorously at the expense of the roots and tubers (the edible part). Look for an organic fertilizer with an “N-P-K” number where the “N” is no higher than the “P” or “K”. Most fertilizers for acid plants (azaleas, rhododendrons, etc.) and bulb fertilizers (if the nitrogen is not too high) will work very well for potatoes. Fish emulsion + kelp extract is a nice combination too.

Most first-time gardeners want to grow tomatoes. This is another good choice for a first-time crop. Like their spud relatives, tomatoes are amazingly productive in the home garden and they taste far better than anything you can buy in the store. If you are buying store-bought tomatoes, you can save a lot of money by growing them at home instead. With just 2-3 plants, you may well have enough tomatoes for the whole family and even some left over for drying, canning, giving away, or selling. Tomatoes will grow well in certain containers, provided that these are large enough to accommodate their root system (at least 12-15 gallons of soil capacity). Where light is limited or in cool summer areas, try the smaller-fruited tomatoes such as cherry, plum, and even Roma tomatoes. You are much more likely to ripen a crop with these than with the giant-fruited varieties. If diseases are a problem, choose disease-resistant varieties, and do not feel bad if this includes hybrid varieties rather than heirlooms. Growing hybrids is not a crime against nature; it just means that you cannot save your own seeds for the next generation. Seed catalogs and nurseries feature hundreds of varieties from which to choose.

Q. What are some of the urban gardening techniques you’ve found most effective?

A. Urban gardeners can face some key limitations. The most obvious one is lack of space, but another limitation is lack of light. The only available space for your garden may be shaded by a building next door or a tree overhead. So you may not get the 6-8 hours of full-blast direct sunlight that most gardening books recommend. But the good news is that those other gardening books are wrong here; they were written by people who garden on acres rather than feet or inches. Small-space urban gardeners know that many food plants can grow well in partial sunlight, dappled sunlight, reflected sunlight, or with just a few hours per day of direct sunlight. Leafy greens, legumes, and most root crops can handle limited light and will produce just fine even if the harvest is a little smaller than in full sunlight.

Vertical gardening can help you address both space and light limitations. Even if you do not have much horizontal space, you may have vertical air space or wall space available to grow some crops. Tall plants like tomatoes, cucumbers, peas, beans, and some squash can be trained upwards or even downwards, growing large and productive even if they have a small horizontal footprint. In some urban spaces, there may well be more light higher up (or lower down) that vertical plants can grow into. If your light comes in at an angle, you can grow shorter plants in front of these taller ones. Dwarf fruit trees and some berry plants can be espaliered against walls or fences, growing from a small patch of soil next to a walkway or wall. The branches are trained two-dimensionally so that they spread in height and width against the wall, but do not spread outwards. Pears, apples, stone fruit, persimmons, and hardy kiwis or grapes (with wire or trellis support), and are all candidates for espalier or 2-D training.


Q. I’m planning on starting some seeds indoors this weekend. What type of planter would you suggest, and can I build it myself?

A. You can start seeds in any small container that has adequate root space and drainage. 2-4 inch peat/coir/cow pots, reused plastic pots from the nursery, egg cartons, and the bottoms of milk cartons all make suitable planters for seed starting. A sunny window makes a good spot or else you can use some indoor light to get the little plants going. Fluorescent or Compact Fluorescent light bulbs work well, but you will need to keep the plant seedlings within a foot or two of the bulbs to get enough light energy, and you will need to run the light for at least eight hours per day.

Depending on the variety of seed, you may need to “pot up” (transfer it to a larger pot) after the plant gets its first true leaves and starts to outgrow its old home. You should put your seedling pots on a tray that catches water runoff and it is important not to over-water seedlings (which is tempting to do). Over-watering will increase the likelihood of disease, so keep the soil just barely moist between waterings. As the plants grow, you need to harden them off by gradually exposing them to the outside sunlight, wind, and temperature changes. Pick a nice, mild day and put them outside for half an hour in bright shade, then an hour the next day, and then some more time in the sun, and you get the picture. Then they will be ready to succeed in the garden.

Q. Is fruit from trees grown in lead contaminated soil safe for human consumption? If not, what about birds and animals eating berries?

A. I have not dealt with this personally and do not know much about it. The soil may need some remediation before being used to grow food crops. I would not advise anyone to eat food grown on contaminated soil. There are ways to remediate the soil using certain deep-rooted plants like sunflowers and comfrey, but then the plant matter needs to be disposed of as toxic waste. It is a multi-year procedure which requires some crop rotations and regular soil testing. Anyone interested in this would have to research it more and follow proper procedures.

Q. This might sound weird, but, what about dog poop? Is it toxic?

A. Animal poop CAN contain pathogens and parasites, so it is important to keep this away from food crops. Generally, fresh manure of any sort should not be applied directly to plants, since it can burn them (though there some safe exceptions, like rabbit manure). However, aged and composted manure is an excellent source of plant fertilizer, and the composting process can kill both bad organisms and break down the manure into a compost that is safe and nutritious for plants. Compost of any sort also improves the soil structure by adding more organic matter.

It may sound gross, but both pet poop and human waste (humanure) can be composted for use in gardens as well. You would need to follow proper “hot composting” procedures to kill any potential pathogens or parasites. Because small-scale compost piles and composting bins rarely get hot enough to achieve this, I would discourage small-scale gardeners from composting pet waste. Manure from non-carnivorous animals (e.g., cows, chickens, rabbits, sheep, goats) is a lot safer and makes a great addition to a compost pile.

Q. What types of food work well grown in the “off-season”?

A. A diverse array of salad greens can be grown in cooler seasons in many climates. In the coldest climates, they may need some protection from a small greenhouse, row cover, cloche, or other type of covering. Spinach, arugula, mache, and kale are some examples, along with a bounty of Oriental greens such as Chinese cabbage and mizuna. You could try green onions (scallions) as well. Or plant some root crops earlier (such as beets or carrots) for winter or early spring harvest. Indoors, you can grow sprouts, microgreens, and mushrooms.

Also, if the indoor temperatures do not drop too low, and if you have a sunny spot under a window, you could try growing dwarf citrus trees in containers. They can live outside in warmer seasons and come indoors in winter. Lemons, and some limes and mandarins, do not need as much heat to ripen as oranges and grapefruit do. Most citrus bear during the “off-season” months and do not need pollinators to set fruit. For that matter, if you had a sunny room that did not get particularly cold in the wintertime, you could experiment with a parthenocarpic variety (no pollination needed) of just about anything, from greens beans to cucumbers to tomatoes. Some of these may not ripen with the shorter day length, but there are some amazingly prolific varieties of veggies being developed for “off-season” greenhouse cultivation; the only way to know is to experiment and see what works!

Q. Many more urbanites are raising chickens or keeping bees. How does one deal with zoning laws?

A. Of all the food-growing topics I covered in my book, I have been most surprised by the overwhelming interest in raising chickens for homegrown eggs. This has been a huge trend over the last year or two, and local governments are responding by changing their outdated laws. Most of these ordinances, for public health or zoning reasons, limited the number of chickens or livestock that someone could raise on a city lot. In my book, I go through some examples of these laws. The good news is that many cities have been waking up to the fact that it is not a health hazard, nor is it loud or obnoxious, to allow someone to keep a couple of hens for egg-laying.

A few months ago, I gave a presentation in San Francisco and a gentleman was there who told me a story about how his young granddaughter had wanted to get some chickens but found out they were illegal to have in her town. So this young lady, who I think was in middle school, went to her town’s council meeting and showed them that all of the neighboring cities and towns allowed chickens. And she got them to change their law to allow this as well. So the trend definitely is in that direction, but urban residents should be especially careful to follow any applicable laws. Check with your city, county, or other local authority, and make sure that what you want to do is legal. If it is not, let them know they are in the dark ages.

Q. Is it possible to make an in-apartment root cellar?

A. Any small home might have some good areas for food storage. Even if you are buying most of your food, some produce is cheaper in season and can be stored for periods ranging from weeks to months. An apartment dweller can think of any unused space that may be good for storage, such as a closet, carport, cabinet, or underneath a staircase. There are different temperature and humidity requirements for optimal storage of various fruits and vegetables, and air circulation can be important, so someone interested in serious root cellaring should research this more thoroughly. I do not have a root cellar, but we normally store some apples and winter squash in the garage for later use. In addition, we have enough refrigerator space to store a few beets, kohlrabi, and carrots.

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Friday, July 24, 2009

Preventing Obesity In The US

Reported by:

Laura Kettel Khan, PhD; Kathleen Sobush, MS, MPH; Dana Keener, PhD; Kenneth Goodman, MA; Amy Lowry, MPA; Jakub Kakietek, MPH; Susan Zaro, MPH3

Summary
Approximately two thirds of U.S. adults and one fifth of U.S. children are obese or overweight.

During 1980--2004, obesity prevalence among U.S. adults doubled, and recent data indicate an estimated 33% of U.S. adults are overweight (body mass index [BMI] 25.0--29.9), 34% are obese (BMI ≥30.0), including nearly 6% who are extremely obese (BMI ≥40.0).

The prevalence of being overweight among children and adolescents increased substantially during 1999--2004, and approximately 17% of U.S. children and adolescents are overweight (defined as at or above the 95% percentile of the sex-specific BMI for age growth charts).

Being either obese or overweight increases the risk for many chronic diseases (e.g., heart disease, type 2 diabetes, certain cancers, and stroke). Reversing the U.S. obesity epidemic requires a comprehensive and coordinated approach that uses policy and environmental change to transform communities into places that support and promote healthy lifestyle choices for all U.S. residents.

Environmental factors (including lack of access to full-service grocery stores, increasing costs of healthy foods and the lower cost of unhealthy foods, and lack of access to safe places to play and exercise) all contribute to the increase in obesity rates by inhibiting or preventing healthy eating and active living behaviors.

Recommended strategies and appropriate measurements are needed to assess the effectiveness of community initiatives to create environments that promote good nutrition and physical activity. To help communities in this effort, CDC initiated the Common Community Measures for Obesity Prevention Project (the Measures Project). The objective of the Measures Project was to identify and recommend a set of strategies and associated measurements that communities and local governments can use to plan and monitor environmental and policy-level changes for obesity prevention.

This report describes the expert panel process that was used to identify 24 recommended strategies for obesity prevention and a suggested measurement for each strategy that communities can use to assess performance and track progress over time.

The 24 strategies are divided into six categories:
1) strategies to promote the availability of affordable healthy food and beverages),
2) strategies to support healthy food and beverage choices,
3) a strategy to encourage breastfeeding,
4) strategies to encourage physical activity or limit sedentary activity among children and youth, 5) strategies to create safe communities that support physical activity, and
6) a strategy to encourage communities to organize for change.

(Edited for length - honest!)

1. Communities Should Increase Availability of Healthier Food and Beverage Choices in Public Service Venues

Overview

Limited availability of healthier food and beverage options can be a barrier to healthy eating and drinking. Healthier food and beverage choices include, but are not limited to, low energy dense foods and beverages with low sugar, fat, and sodium content (11). Schools are a key venue for increasing the availability of healthier foods and beverages for children. Other public service venues positioned to influence the availability of healthier foods include after-school programs, child care centers, community recreational facilities (e.g., parks, playgrounds, and swimming pools), city and county buildings, prisons, and juvenile detention centers. Improving the availability of healthier food and beverage choices (e.g., fruits, vegetables, and water) might increase the consumption of healthier foods.

Evidence

CDC's Community Guide reports insufficient evidence to determine the effectiveness of multicomponent school-based nutrition initiatives designed to increase fruit and vegetable intake and decrease fat and saturated fat intake among school-aged children (22,23). However, systematic research reviews have reported an association between the availability of fruits and vegetables and increased consumption (24,25). Farm-to-school salad bar programs, which deliver produce from local farms to schools, have been shown to increase fruit and vegetable consumption among students (12). A 2-year randomized control trial of a school-based environmental intervention that increased the availability of lower-fat foods in cafeteria à la carte areas indicated that sales of lower-fat foods increased among adolescents attending schools exposed to the intervention (26).

2. Communities Should Improve Availability of Affordable Healthier Food and Beverage Choices in Public Service Venues

Overview

Healthier foods generally are more expensive than less-healthy foods (28), which can pose a significant barrier to purchasing and consuming healthier foods, particularly for low-income consumers. Healthier foods and beverages include, but are not limited to, foods and beverages with low energy density and low calorie, sugar, fat, and sodium content (11). Healthier food and beverage choices need to be both available and affordable for persons to consume them.

Strategies to improve the affordability of healthier foods and beverages include lowering prices of healthier foods and beverages and providing discount coupons, vouchers redeemable for healthier foods, and bonuses tied to the purchase of healthier foods. Pricing strategies create incentives for purchasing and consuming healthier foods and beverages by lowering the prices of such items relative to less healthy foods. Pricing strategies that can be applied in public service venues (e.g., schools and recreation centers) include, but are not limited to, decreasing the prices of healthier foods sold in vending machines and in cafeterias and increasing the price of less healthy foods and beverages at concession stands.

Evidence

Research has demonstrated that reducing the cost of healthier foods increases the purchase of healthier foods (29,30). For example, one study indicated that sales of fruits and carrots in high-school cafeterias increased after prices were reduced (31). In addition, interventions that reduced the price of healthier, low-fat snacks in vending machines in school and work settings have been demonstrated to increase purchasing of healthier snacks (32,33). A recent study estimated that a subsidized 10% price reduction on fruits and vegetables would encourage low-income persons to increase their daily consumption of fruits from 0.96 cup to 0.98--1.01 cups and increase their daily consumption of vegetables from 1.43 cups to 1.46--1.50 cups, compared with the recommended 1.80 cups of fruits and 2.60 cups of vegetables (34).

Furthermore, interventions that provide coupons redeemable for healthier foods and bonuses tied to the purchase of healthier foods increase purchase and consumption of healthier foods in diverse populations, including university students, recipients of services from the Supplemental Nutrition Program for Women, Infants, and Children (WIC), and low-income seniors (35--37). For example, one community-based intervention indicated that WIC recipients who received weekly $10 vouchers for fresh produce increased their consumption of fruits and vegetables compared with a control group and sustained the increase 6 months after the intervention (38).

3. Communities Should Improve Geographic Availability of Supermarkets in Underserved Areas
Overview

Supermarkets and full-service grocery stores have a larger selection of healthy food (e.g., fruits and vegetables) at lower prices compared with smaller grocery stores and convenience stores. However, research suggests that low-income, minority, and rural communities have fewer supermarkets as compared with more affluent areas (39,40). Increasing the number of supermarkets in areas where they are unavailable or where availability is limited is might increase access to healthy foods, particularly for economically disadvantaged populations.

Evidence

Greater access to nearby supermarkets is associated with healthier eating behaviors (39). For example, a cross-sectional study of approximately 10,000 participants indicated that blacks living in neighborhoods with at least one supermarket were more likely to consume the recommended amount of fruits and vegetables than blacks living in neighborhoods without supermarkets. Further, blacks consumed 32% more fruits and vegetables for each additional supermarket located in their census tract (41). Another study indicated that increasing the number of supermarkets in underserved neighbors increased real estate values, increased economic activity and employment, and resulted in lower food prices (42).

One cross-sectional study linked height and weight data from approximately 70,000 adolescents to data on food store availability (43). The results indicated that, after controlling for socioeconomic status, greater availability of supermarkets was associated with lower adolescent BMI scores and that a higher prevalence of convenience stores was related to higher BMI among students. The association between supermarket availability and weight was stronger for black students and for students whose mothers worked full-time (43).

4. Communities Should Provide Incentives to Food Retailers to Locate in and/or Offer Healthier Food and Beverage Choices in Underserved Areas

Overview

Healthier foods and beverages include but are not limited to foods and beverages with low energy density and low calorie, sugar, fat, and sodium content as defined by IOM (11). Disparities in the availability of healthier foods and beverages between communities with different income levels, ethnic composition, and other characteristics are well documented, and limited availability of healthier food and beverage choices in underserved communities constitutes a substantial barrier to improving nutrition and preventing obesity (41).

To address this issue, communities can provide incentives to food retailers (e.g., supermarkets, grocery stores, convenience and corner stores, and street vendors) to offer a greater variety of healthier food and beverage choices in underserved areas. Such incentives, both financial and nonfinancial, can be offered to encourage opening new retail outlets in areas with limited shopping options, and existing corner and convenience stores (which typically depend on sales of alcohol, tobacco, and sugar-sweetened beverages) into neighborhood groceries selling healthier foods (44). Financial incentives include but are not limited to tax benefits and discounts, loans, loan guarantees, and grants to cover start-up and investment costs (e.g., improving refrigeration and warehouse capacity). Nonfinancial incentives include supportive zoning, and increasing the capacity of small businesses through technical assistance in starting up and maintaining sales of healthier foods and beverages.

Evidence

The presence of retail venues that provide healthier foods and beverages is associated with better nutrition. Cross-sectional studies indicate that the presence of retail venues offering healthier food and beverage choices is associated with increased consumption of fruits and vegetables and lower BMI (45). One study indicated that every additional supermarket within a given census tract was associated with a 32% increase in the amount of fruits and vegetables consumed by persons living in that census tract (40). Another study indicated that greater availability of supermarkets was associated with lower adolescent BMI scores and a higher prevalence of convenience stores was related to higher BMI among students (43). The association between supermarket availability and weight was stronger for black students compared with white and Hispanic students, and stronger for students whose mothers work full-time compared with those whose mothers work part-time or do not work (43).

5. Communities Should Improve Availability of Mechanisms for Purchasing Foods from Farms

Overview

Mechanisms for purchasing food directly from farms include farmers' markets, farm stands, community-supported agriculture, "pick your own," and farm-to-school initiatives. Experts suggest that these mechanisms have the potential to increase opportunities to consume healthier foods, such as fresh fruits and vegetables, by possibly reducing costs of fresh foods through direct sales; making fresh foods available in areas without supermarkets; and harvesting fruits and vegetables at ripeness rather than at a time conducive to shipping, which might improve their nutritional value and taste (M. Hamm, PhD, Michigan State University, personal communication, 2008).

Evidence

Evidence supporting a direct link between purchasing foods from farms and improved diet is limited. Two studies of initiatives to encourage participation in the Seniors Farmers' Market Nutrition Program (46) and the WIC Farmers' Market Nutrition Program (47) report either increased intention to eat more fruits and vegetables or increased utilization of the program; however, neither study reported direct evidence that the programs resulted in increased consumption of fruits and vegetables. The Farmers' Market Salad Bar Program in the Santa Monica--Malibu Unified School District aims to increase students' consumption of fresh fruits and vegetables and to support local farmers by purchasing produce directly from local farmers' markets and serving them in the district's school lunch program. An evaluation of the program over a 2-year period demonstrated that 30%--50% of students chose the salad bar on any given day (48). Access to farm foods varies between agricultural and metropolitan areas.

6. Communities Should Provide Incentives for the Production, Distribution, and Procurement of Foods from Local Farms

Overview

Currently the United States is not producing enough fruits, vegetables, whole grains, and dairy products for all U.S. citizens to eat the quantities of these foods recommended by the USDA Dietary Guidelines for Americans (27,49). Providing incentives to encourage the production, distribution, and procurement of food from local farms aims might increase the availability and consumption of locally produced foods by community residents, enhance the ability of the food system to provide sufficient quantities of healthier foods, and increase the viability of local farms and food security for communities (M. Hamm, PhD, Michigan State University, personal communication, 2008). Definitions of "local" vary by place and context but may include the area of the foodshed (i.e. a geographic area that supplies a population center with food), food grown within a day's driving distance of the place of sale, or a smaller area such as a city and its surroundings. Incentives to encourage local food production can include forming grower cooperatives, instituting revolving loan funds, and building markets for local farm products through economic development and through collaborations with the Cooperative Extension Service (50). Additional incentives include but are not limited to farmland preservation, marketing of local crops, zoning variances, subsidies, streamlined license and permit processes, and the provision of technical assistance.

Evidence

Evidence suggests that dispersing agricultural production in local areas around the country (e.g., through local farms and urban agriculture) would increase the amount of produce that could be grown and made available to local consumers, improve economic development at the local level (51,52), and contribute to environmental sustainability (53). Although no evidence has been published to link local food production and health outcomes, a study has been funded to explore the potential nutritional and health benefits of eating locally grown foods (A. Ammerman, DrPH, University of North Carolina Center for Health Promotion and Disease Prevention, personal communication, 2009).

7. Communities Should Restrict Availability of Less Healthy Foods and Beverages in Public Service Venues

Overview

Less healthy foods and beverages include foods and beverages with a high calorie, fat, sugar, and sodium content, and a low nutrient content. Less healthy foods are more available than healthier foods in U.S. schools (54). The availability of less healthy foods in schools is inversely associated with fruit and vegetable consumption and is positively associated with fat intake among students (55). Therefore, restricting access to unhealthy food options is one component of a comprehensive plan for better nutrition.

Schools can restrict the availability of less healthy foods by setting standards for the types of foods sold, restricting access to vending machines, banning snack foods and food as rewards in classrooms, prohibiting food sales at certain times of the school day, or changing the locations where unhealthy competitive foods are sold. Other public service venues that could also restrict the availability of less healthy foods include after-school programs, regulated child care centers, community recreational facilities (e.g., parks, recreation centers, playgrounds, and swimming pools), city and county buildings, and prisons and juvenile detention centers.

Evidence

No peer-reviewed studies were identified that examined the impact of interventions designed to restrict the availability of less healthy foods in public service venues. Federal nutritional guidelines prohibit the sale of foods of "minimal nutritional value" in school cafeterias while meals are being served. However, the guidelines currently do not prevent or restrict the sale of these foods in vending machines near the cafeteria or in other school locations (11). Certain states and school districts have developed more restrictive policies regarding competitive foods; 21 states have policies that restrict the sale of competitive foods beyond USDA regulations (56). However, no studies were identified that examined the impact of the policies in those states on student eating behavior.

8. Communities Should Institute Smaller Portion Size Options in Public Service Venues

Overview

Portion size can be defined as the amount (e.g. weight, calorie content, or volume) of a single food item served in a single eating occasion (e.g. a meal or a snack), such as the amount offered to a person in a restaurant, in the packaging of prepared foods, or the amount a person chooses to put on his or her plate (23). Controlling portion size is important because research has demonstrated that persons often either 1) do not notice differences in portion sizes and unknowingly eat larger amounts when presented with a larger portion or 2) when eating larger portions, do not consume fewer calories at subsequent meals or during the rest of the day (57).

Evidence

Evidence is lacking to demonstrate the effectiveness of population-based interventions aimed at reducing portion sizes in public service venues. However, evidence from clinical studies conducted in laboratory settings demonstrates that decreasing portion size decreases energy intake (58--60). This finding holds across a wide variety of foods and different types of portions (e.g., portions served on a plate, sandwiches, or prepackaged foods such as potato chips). Clinical studies conducted in nonlaboratory settings demonstrate that increased portion size leads to increased energy intake (61,62). The majority of studies that evaluated the impact of portion size on nutritional outcomes were short term, producing little evidence regarding the long-term impact of portion size on eating patterns, nutrition, and obesity (23). Intervention studies are underway that evaluate the impact of limiting portion size, combined with other strategies to prevent obesity in workplaces (63).

9. Communities Should Limit Advertisements of Less Healthy Foods and Beverages

Overview

Research has demonstrated that more than half of television advertisements viewed by children and adolescents are food-related; the majority of them promote fast foods, snack foods, sweets, sugar-sweetened beverage products, and other less healthy foods that are easily purchased by youths (11). In 2006, major food and beverage marketers spent $1.6 billion to promote food and beverage products among children and adolescents in the United States (64). Television advertising has been determined to influence children to prefer and request high-calorie and low-nutrient foods and beverages and influences short-term consumption among children aged 2--11 years (65). Therefore, limiting advertisements of less healthy foods might decrease the purchase and consumption of such products. Legislation to limit advertising of less healthy foods and beverages usually is introduced at the federal or state level. However, local governing bodies, such as district level school boards, might have the authority to limit advertisements of less healthy foods and beverages in areas within their jurisdiction (9).

Evidence

Little evidence is available regarding the impact of restricting advertising on purchasing and consumption of less healthy foods (11,22,66,67). However, cross-sectional time-series studies of tobacco-control efforts suggest that an association exists between advertising bans and decreased tobacco consumption (22,68). One study estimated that a ban on fast-food advertising on children's television programs could reduce the number of overweight children aged 3--11 years by 18% and the number of overweight adolescents aged 12--18 years by 14% (69). Limited bans of advertising, which include some media but not others (e.g., television but not newspapers), might have little or no effect as the food and beverage industry might redirect its advertising efforts to media not included in the ban, thus limiting researchers' ability to detect causal effects (68).

10. Communities Should Discourage Consumption of Sugar-Sweetened Beverages

Overview

Consumption of sugar-sweetened beverages (e.g., carbonated soft drinks, sports drinks, flavored sweetened milk, and fruit drinks) among children and adolescents has increased dramatically since the 1970s and is associated with higher daily caloric intake and greater risk of obesity (70). Although consumption of sugar-sweetened beverages occurs most often in the home, schools and child care centers also contribute to the problem either by serving sugar-sweetened beverages or by allowing children to purchase sugar-sweetened beverages from vending machines (70). Policies that restrict the availability of sugar-sweetened beverages and 100% fruit juice in schools and child care centers might discourage the consumption of high-caloric beverages among children and adolescents.

Evidence

One longitudinal study of a school-based environmental intervention conducted among Native American high school students that combined education to decrease the consumption of sugar-sweetened beverages and increase knowledge of diabetes risk factors with the development of a youth-oriented fitness center demonstrated a substantial reduction in consumption of sugar-sweetened beverages for a 3-year period (71). A randomized control study of a home-based environmental intervention that eliminated sugar-sweetened beverages from the homes of a diverse group of adolescents demonstrated that, among heavier adolescents, the intervention resulted in significantly (p = 0.03) greater reduction in BMI scores compared with the control group (72).

11. Communities Should Increase Support for Breastfeeding

Overview

Exclusive breastfeeding is recommended for the first 4--6 months of life, and breastfeeding together with the age-appropriate introduction of complementary foods is encouraged for the first year of life. Epidemiologic data suggest that breastfeeding provides a limited degree of protection against childhood obesity, although the reasons for this association are not clear (11). Breastfeeding is thought to promote an infant's ability to self regulate energy intake, thereby allowing him or her to eat in response to internal hunger and satiety cues (73). Some research suggests that the metabolic/hormonal cues provided by breastmilk contribute to the protective association between breastfeeding and childhood obesity (74). Despite the many advantages of breastfeeding, many women choose to bottle-feed their babies for a variety of reasons, including social and structural barriers to breastfeeding, such as attitudes and policies regarding breastfeeding in health-care settings and public and work places (75).

Breastfeeding support programs aim to increase the initiation and exclusivity rate of breastfeeding and to extend the duration of breastfeeding. Such programs include a variety of interventions in hospitals and workplaces (e.g., setting up breastfeeding facilities, creating a flexible work environment that allows breastfed infants to be brought to work, providing onsite child care services, and providing paid maternity leaves), and maternity care (e.g., polices and staff training programs that promote early breastfeeding initiation, restricting the availability of supplements or pacifiers, and providing facilities that accommodate mothers and babies). The CDC Guide to Breastfeeding Interventions identifies the following general areas of interventions and programs as effective in supporting breastfeeding: 1) maternity care practices, 2) support for breastfeeding in the workplace, 3) peer support, 4) educating mothers, 5) professional support, and 6) media and community-wide campaigns (76).

Evidence

Evidence directly linking environmental interventions that support breastfeeding with obesity-related outcomes is lacking. However, systematic reviews of epidemiologic studies indicate that breastfeeding helps prevent pediatric obesity: breastfed infants were 13%--22% less likely to be obese than formula-fed infants (77,78), and each additional month of breastfeeding was associated with a 4% decrease in the risk of obesity (79). Furthermore, one study demonstrated that infants fed with low (<20%>80% of feedings from breastmilk) (80).

Systematic reviews indicate that support programs in health-care settings are effective in increasing rates of breastfeeding initiation and in preventing early cessation of breastfeeding. Training medical personnel and lay volunteers to promote breastfeeding decreases the risk for early cessation of breastfeeding by 10% (81) and that education programs increase the likelihood of the initiation of breastfeeding among low-income women in the United States by approximately twofold (75).

One systematic review did not identify any randomized control trials that have tested the effectiveness of workplace-wide interventions promoting breastfeeding among women returning to paid employment (82). However, one study demonstrated that women who directly breastfed their infant at work and/or pumped breast milk at work breastfed at a higher intensity than women who did not breastfeed or pump breast milk at work (83). Furthermore, evaluations of individual interventions aimed at supporting breastfeeding in the workplace demonstrate increased initiation rates and duration of breastfeeding compared with national averages (76).

12. Communities Should Require Physical Education in Schools

Overview

This strategy supports the Healthy People 2010 objective (objective no. 22.8) to increase the proportion of the nation's public and private schools that require daily PE for all students (15). The National Association for Sport and Physical Education (NASPE) and the American Heart Association (AHA) recommend that all elementary school students should participate in >150 minutes per week of PE and that all middle and high school students should participate in >225 minutes of PE per week for the entire school year (84). School-based PE increases students' level of physical activity and improves physical fitness (23).

Many states mandate some level of PE in schools: 36 states mandate PE for elementary-school students, 33 states mandate PE for middle-school students, and 42 states mandate PE for high-school students (84). However, to what extent these requirements are enforced is unclear, and only two states (Louisiana and New Jersey) mandate the recommended >150 minutes per week of PE classes. Potential barriers to implementing PE classes in schools include concerns among school administrators that PE classes compete with traditional academic curricula or might detract from students' academic performance. However, a Community Guide review identified no evidence that time spent in PE classes harms academic performance (23).

Evidence

In a systematic review of 14 studies, the Community Guide demonstrated that school-based PE was effective in increasing levels of physical activity and improving physical fitness (23). The review included studies of interventions that increased the amount of time spent in PE classes, the amount of time students are active during PE classes, or the amount of moderate or vigorous physical activity (MVPA) students engage in during PE classes.

Most studies that correlated school-based PE classes and the physical activity and fitness of students focused on the quality and duration of PE classes (e.g., the amount of physical activity during class, the amount of MVPA) rather than simply whether PE was required. However, requiring that PE classes be taught in schools is a necessary minimum condition for measuring the effectiveness of efforts to improve school-based PE class curricula.

13. Communities Should Increase the Amount of Physical Activity in PE Programs in Schools

Overview

Time spent in PE classes does not necessarily mean that students are physically active during that time. Increasing the amount of physical activity in school-based PE classes has been demonstrated to be effective in increasing fitness among children. Specifically, increasing the amount of time children are physically active in class, increasing the number of children moving as part of a game or activity (e.g., by modifying game rules so that more students are moving at any given time, or by changing activities to those where all participants stay active), and increasing the amount of moderate to vigorous activity during class time are effective strategies for increasing physical activity.

Evidence

In a review of 14 studies, the Community Guide demonstrated strong evidence of effectiveness for enhancing PE classes taught in school by increasing the amount of time students spend in PE class, the amount of time they are active during PE classes, or the amount of MVPA they engage in during PE classes (23). The median effect of modifying school PE curricula as recommended was an 8% increase in aerobic fitness among school-aged children. Modifying school PE curricula was effective in increasing physical activity across racial, ethnic, and socioeconomic populations, among males and females, in elementary and high schools, and in urban and rural settings.

A quasi-experimental study of the Sports, Play, and Active Recreation for Kids (SPARK) school PE program, which is designed to maximize participation in physical activity during PE classes, demonstrated that the program increased physical activity during PE classes but the effect did not carry over outside of school (85). The study identified no significant effects on fitness levels among boys (p = 29--55), but girls in the classes led by a PE specialist were superior in abdominal and cardio respiratory endurance to girls in the control condition (p = 0.03). The Child and Adolescent Trial for Cardiovascular Health (CATCH) is another intervention which aims to increase MVPA in children during PE classes. A randomized, controlled field trail of CATCH that was conducted with more than 5,000 third-grade students from 96 public schools over a 3-year period indicated that the intensity of physical activity in PE classes (class time devoted to MVPA) during the intervention increased significantly in the intervention schools compared with the control schools (p<0.02) (86).

The background and training of teachers who deliver PE curricula might mediate the effect of interventions on physical activity. For example, one study indicated that SPARK classes led by PE specialists spent more time per week in physical activity (40 minutes) than classes led by regular teachers who had received training in the curriculum (33 minutes) (85).

14. Communities Should Increase Opportunities for Extracurricular Physical Activity

Overview

Opportunities for extracurricular physical activity outside of school hours to complement formal PE increasingly are an important strategy to prevent obesity in children and youth (11). This strategy focuses on noncompetitive physical activity opportunities such as games and dance classes available through community and after-school programs, and excludes participation in varsity team sports or sport clubs, which require tryouts and are not open to all students. Research has demonstrated that after-school programs that provide opportunities for extracurricular physical activity increase children's level of physical activity and improve other obesity-related outcomes.

Evidence

Intervention studies have demonstrated that participation in after-school programs that provided opportunities for extracurricular physical activity held both at schools and other community settings increased participants' level of physical activity (87,88) and improved obesity-related outcomes, such as improved cardiovascular fitness and reduced body fat content (89). Two pilot studies demonstrated that providing opportunities for extracurricular physical activity increased levels of physical activity (90) and decreased sedentary behavior (91) among participants.

The Promoting Life Activity in Youth (PLAY) program is designed to teach active lifestyle habits to children and help them to accumulate 30--60 minutes of moderate to vigorous physical activity per day. One study indicated that participation in PLAY and PE had a significant impact on physical activity among girls (p<0.001) but not for boys (90). Lack of access is a barrier that might limit the impact of increased availability of opportunities for extracurricular physical activity. In East Palo Alto, California, where the city provided buses from schools to the community center, 70% of the eligible girls attended dance classes at least 2 days a week. In Oakland, where the city did not provide buses, only 33% of eligible girls attended the class two or more times a week (91).

15. Communities Should Reduce Screen Time in Public Service Venues

Overview

Mechanisms linking extended screen viewing time and obesity include displacement of physical activity; a reduction in metabolic rate and excess energy intake; and increased consumption of food advertised on television as a result of exposure to marketing of high energy dense foods and beverages (92,93). The American Academy of Pediatrics (94) recommends that parents limit children's television time to no more than to 2 hours per day. Although only a relatively small portion of television viewing and computer and video game use occurs in public service venues such as schools, day care centers, and after-school programs, local policymakers can intervene to limit screen viewing time among children and youth in these venues.

Evidence

Long-term cohort studies have demonstrated a positive significant (p = 0.02) association between television viewing in childhood and body mass index levels in adulthood (92,93). In addition, a cross-sectional study indicated that the amount of time spent watching TV/video was significantly related to overweight among low-income preschool children (p<0.004) (95). A randomized controlled school-based trial indicated that children who reduced their television, videotape, and video game use had significant decreases in BMI (p = 0.002), tricep skin fold thickness (p = 0.002), and waist circumference (p<0.001) compared with children in control groups (96). The evidence surrounding children's television viewing and its relationship to physical activity has been somewhat inconsistent. A review evaluating correlates of childhood physical activity determined that some studies find time spent engaged in sedentary activities, specifically TV viewing and video use, has a negative association to physical activity, while other studies find no relationship (97). Multicomponent school-based intervention studies have demonstrated that spending less time watching television is associated with increased physical activity (98) and decreased risk of childhood obesity among girls but not boys (99).

16. Communities Should Improve Access to Outdoor Recreational Facilities
Overview

Recreation facilities provide space for community members to engage in physical activity and include places such as parks and green space, outdoor sports fields and facilities, walking and biking trails, public pools, and community playgrounds. Accessibility of recreation facilities depends on a number of factors such as proximity to homes or schools, cost, hours of operation, and ease of access. Improving access to recreation facilities and places might increase physical activity among children and adolescents.

Evidence

In a review based on 10 studies, the Community Guide concluded that efforts to increase access to places for physical activity, when combined with informational outreach, can be effective in increasing physical activity (100). The studies reviewed by the Community Guide included interventions such as creating walking trails, building exercise facilities, and providing access to existing facilities. However, it was not possible to separate the benefits of improved access to places for physical activity from health education and services that were provided concurrently (100).

A comprehensive review of 108 studies indicated that access to facilities and programs for recreation near their homes, and time spent outdoors, correlated positively with increased physical activity among children and adolescents (97). A study that analyzed data from a longitudinal survey of 17,766 adolescents indicated that those who used community recreation centers were significantly more likely to engage in moderate to vigorous physical activity (p≤0.00001) (101).

A multivariate analysis indicated that self-reported access to a park, and the perception that footpaths are safe for walking were significantly associated with adult respondents being classified as physically active at a level sufficient for health benefits (102). Another study that used self-report and GIS data concluded that longer distances and the presence of barriers (e.g., busy streets and steep hills) between individuals and bike paths were associated with non-use of bike paths (103).

17. Communities Should Enhance Infrastructure Supporting Bicycling
Overview


Enhancing infrastructure supporting bicycling includes creating bike lanes, shared-use paths, and routes on existing and new roads; and providing bike racks in the vicinity of commercial and other public spaces. Improving bicycling infrastructure can be effective in increasing frequency of cycling for utilitarian purposes (e.g., commuting to work and school, bicycling for errands). Research demonstrates a strong association between bicycling infrastructure and frequency of bicycling.

Evidence

Longitudinal intervention studies have demonstrated that improving bicycling infrastructure is associated with increased frequency of bicycling (104,105). Cross-sectional studies indicated a significant association between bicycling infrastructure and frequency of biking (p<0.001) (103,106,107).

18. Communities Should Enhance Infrastructure Supporting Walking
Overview


Infrastructure that supports walking includes but is not limited to sidewalks, footpaths, walking trails, and pedestrian crossings. Walking is a regular, moderate-intensity physical activity in which relatively large numbers of persons can engage. Well-developed infrastructure supporting walking is an important element of the built environment and has been demonstrated to be associated with physical activity in adults and children. Interventions aimed at supporting infrastructure for walking are included in street-scale urban design and land use interventions that support physical activity in small geographic areas. These interventions can include improved street lighting, infrastructure projects to increase the safety of street crossings, use of traffic calming approaches (e.g., speed humps and traffic circles), and enhancing street landscaping (108).

Evidence

The Community Guide reports sufficient evidence that street-scale urban design and land use policies that support walking are effective in increasing levels of physical activity (108). Reviews of cross-sectional studies of environmental correlates of physical activity and walking generally find a positive association between infrastructure supportive of walking and physical activity (109,110). However, some systematic reviews indicated no evidence of an association between the presence of sidewalks and physical activity (111). Other reviews indicated associations, but only for certain subgroups of subjects (e.g., men and users of longer walking trails) (108,109). Intervention studies demonstrate effectiveness of enhanced walking infrastructure when combined with other strategies. For example, evaluation of the Marin County Safe Routes to School program indicated that identifying and creating safe routes to school, together with educational components, increased the number of students walking to school (105). When considering the evidence for this strategy, planners should note that physically active individuals might be more likely to locate in communities that have an existing infrastructure for walking, which might produce spurious correlations in cross-sectional studies (109).


19. Communities Should Support Locating Schools within Easy Walking Distance of Residential Areas
Overview

Walking to and from school has been demonstrated to increase physical activity among children during the commute, leading to increased energy expenditure and potentially to reduced obesity. However, the percentage of students walking to school has dropped dramatically over the past 40 years, partially due to the increased distance between children's homes and schools. Current land use trends and policies pose barriers to building smaller schools located near residential areas. Therefore, requisite activities that support locating schools within easy walking distance of residential areas include efforts to change land use and school system policies.

Evidence

The Community Guide indicated that community-scale urban design and land use policies and practices, including locating schools, stores, workplaces, and recreation areas close to residential areas, are effective in facilitating an increase in levels of physical activity (23,108). A simulation modeling study conducted by the U.S. Environmental Protection Agency (EPA) in Florida indicated that school location as well as the quality of the built environment between home and school has an effect on walking and biking to school. Specifically, this combination of school location and built environment quality would produce a 13% increase in nonmotorized travel to school (112). A cross-sectional study in the Philippines indicated that adolescents who walked to school expended significantly more energy than those who used motorized modes of transport. This association was not explainable by in-school or after-school sports or exercise. Assuming no change takes place in energy intake, the difference in energy expenditure between transport modes would lead to an expected 2--3-pound annual weight gain by youth who commute to school by motorized transport (113).

As a result of current land use trends and policies regarding school siting, very little work has been done to locate schools within neighborhoods. A study conducted by the Environmental Protection Agency suggests that the trend of building larger schools with larger catchment areas should be reversed to locate schools within neighborhoods (112). The distance between homes and schools is not the only factor that affects whether children walk to and from school. Among students living within 1 mile of school, the percentage of walkers fell from 90% to 31% between 1969 and 2001 (112). The decrease in walking to and from school has been attributed to a poor walking environment, defined as a built environment that has low population densities, little mixing of land uses, long blocks, and incomplete sidewalks (112). The majority of efforts to encourage walking to and from school involve improving the routes (e.g., Marin County's Safe Routes to School program) rather than improving the location of schools. Previous studies have recommended that local governments and school districts should ensure that children and youth have safe walking and bicycling routes between their homes and schools and encouraged their use (11).

20. Communities Should Improve Access to Public Transportation
Overview

Public transportation includes mass transit systems such as buses, light rail, street cars, commuter trains, and subways, and the infrastructure supporting these systems (e.g., transit stops and dedicated bus lanes). Improving access to public transportation encourages the use of public transit, which might, in turn, increase the level of physical activity when transit users walk or ride bicycles to and from transit access points.

Evidence

The Community Guide identified insufficient evidence to determine the effectiveness of transportation and travel policies and practices in increasing the level of physical activity or improving fitness because only one study of adequate quality was available (108). In a study that analyzed data from the 2001 National Household Travel Survey, researchers indicated that 29% of individuals who walk to and from public transit achieve at least 30 minutes of daily physical activity (114). Another study indicated that access to public transit was associated with decreases in the odds of using automobiles as a preferred mode of transportation and increases in the odds of walking and/or bicycling (115). In a cross-sectional study carried out in four San Francisco neighborhoods, researchers indicated that individuals with easy access to the Bay Area Rapid Transit System (BART) made, on average, 0.66 more nonmotorized trips than those who did not have access to BART (116).

Physically active individuals might be more likely to locate into communities with an infrastructure that supports physical activity, including neighborhoods with infrastructure supporting public transportation (110). Most neighborhood-level cross-sectional studies do not control for individual-level characteristics (e.g., ethnicity, age, socioeconomic status). Environmental factors, including infrastructure for public transit, also might affect different subpopulations differently (110,116).

21. Communities Should Zone for Mixed-Use Development
Overview

Zoning for mixed-use development is one type of community-scale land use policy and practice that allows residential, commercial, institutional, and other public land uses to be located in close proximity to one another. Mixed-use development decreases the distance between destinations (e.g., home and shopping), which has been demonstrated to decrease the number of trips persons make by automobile and increase the number of trips persons make on foot or by bicycle. Zoning regulations that accommodate mixed land use could increase physical activity by encouraging walking and bicycling trips for nonrecreational purposes. Zoning laws restricting the mixing of residential and nonresidential uses and encouraging single-use development can be a barrier to physical activity.

Evidence

The Community Guide lists mixed-use development and diversity of residential and commercial developments as examples of community-scale urban design and land use policies and practices (23). The Community Guide rated the evidence for community-scale urban design and land use policies and practices as sufficient to justify a recommendation that these characteristics increase physical activity (23,108). The recommendation was based on a review of 12 studies in which the median improvement in some aspect of physical activity was 161% (23,108).

Studies using correlation analyses and regression models indicated that mixed land use was associated with increased walking and cycling (110,117--119). A review of quasi-experimental studies indicated residents from high walkability neighborhoods (defined by higher density, greater connectivity, and more land use mix) reported twice as many walking trips per week than residents from low walkability neighborhoods (defined by low density, poor connectivity, and single land uses) (110). A cross-sectional study conducted in Atlanta, GA indicated that odds of obesity declined as mixed land use increased (118).

Some increased level of physical activity among residents of mixed-use neighborhoods might be attributable to selection of these types of neighborhoods by persons more likely to engage in physical activity (119). Mixed-use development is often combined with multiple design elements from urban planning and policy, including density, connectivity, roadway design, and walkability.

22. Communities Should Enhance Personal Safety in Areas Where Persons Are or Could Be Physically Active
Overview


Personal safety is affected by crime rates and other nontraffic-related hazards that exist in communities. Limited but supportive evidence indicates that improving community safety might be effective at increasing levels of physical activity in adults and children. In addition, safety considerations affect parents' decisions to allow their children to play and walk outside (11). Interventions to improve safety, such as increasing police presence, decreasing the number of abandoned buildings and homes, and improving street lighting, can be undertaken by individual communities.

Evidence

Cross-sectional studies have demonstrated a negative relationship between crime rates and/or perceived safety and physical activity in neighborhoods, particularly among adolescents (101,120,121). A systematic review indicated that observational measurements of safety (e.g., crime incidence) were negatively associated with physical activity, but subjective measurements (self-reported safety) were not correlated with physical activity (120).

Few intervention studies have evaluated the impact of policies and practices to improve personal safety on physical activity. However, one study indicated that improved street lighting in London led to reduced crime rates, less fear of crime, and more pedestrian street use (122). Some studies suggest that the relationship between safety and physical activity might vary by gender and/or other individual-level characteristics. For example, one study indicated that incidence rates of violent crimes were associated with lower physical activity in adolescent girls, but not in boys (121).

Persons of lower socioeconomic status depend more on walking as a means of transportation as compared with those of higher socioeconomic status, and they also are more likely to live in neighborhoods that are unsafe (11). This could explain why some studies do not find a positive association between perceived safety and physical activity. Reducing crime levels might require complex, multisectoral, and long-term efforts, which might go beyond the authority and capacity of local communities.

23. Communities Should Enhance Traffic Safety in Areas Where Persons Are or Could Be Physically Active
Overview


Traffic safety is the security of pedestrians and bicyclists from motorized traffic. Traffic safety can be enhanced by engineering streets for lower speeds or by retrofitting existing streets with traffic calming measurements (e.g., speed tables and traffic circles). Traffic safety can also be enhanced by developing infrastructure to improve the safety of street crossings (e.g., raised crosswalks and textured pavement) for nonmotorized traffic and for pedestrians.

The lack of safe places to walk, run, and bicycle as a result of real or perceived traffic hazards can deter children and adults from being physically active. Enhancing traffic safety has been demonstrated to be effective in increasing levels of physical activity in adults and children. Research suggests that persons living in neighborhoods with higher traffic safety are more physically active.

Evidence

The Community Guide reviewed both community-scale and street-scale urban design and land use policies and practices, including interventions aimed at improving traffic safety. The review indicated that both community-scale and street-scale policies and practices were effective in increasing physical activity (108). On the basis of sufficient evidence of effectiveness, the Community Guide recommends implementing community-scale and street-scale urban design and land use policies to promote physical activity, including design components to improve street lighting, infrastructure projects to increase safety of pedestrian street crossings, and use of traffic calming approaches such as speed humps and traffic circles (23).

A review of 19 studies examined the effects of environmental factors on physical activity, five of which considered traffic safety (123). One study demonstrated significant effects of traffic safety on increased physical activity (102).

24. Communities Should Participate in Community Coalitions or Partnerships to Address Obesity
Overview

Community coalitions consist of public- and private-sector organizations that, together with individual citizens, work to achieve a shared goal through the coordinated use of resources, leadership, and action (11). Potential stakeholders in community coalitions aimed at obesity prevention include but are not limited to community organizations and leaders, health-care professionals, local and state public health agencies, industries (e.g., building and construction, restaurant, food and beverage, and entertainment), the media, educational institutions, government (including transportation and parks and recreation departments), youth-related and faith-based organizations, nonprofit organizations and foundations, and employers.

The effectiveness of community coalitions stems from the multiple perspectives, talents, and expertise that are brought together to work toward a common goal. In addition, coalitions build a sense of community, enhance residents' engagement in community life, and provide a vehicle for community empowerment. Research in tobacco control demonstrates that the presence of antismoking community coalitions is associated with lower rates of cigarette use. Based on this research, it is plausible that community coalitions might be effective in preventing obesity and in improving physical activity and nutrition.

Evidence

Little evidence is available to determine the impact of community coalitions on obesity prevention (11). However, tobacco-control literature demonstrates that the presence of antismoking community coalitions is associated with lower rates of tobacco consumption. One study indicated that states with a greater number of anti-tobacco coalitions had lower per capita cigarette consumption than states with a lower number of coalitions (124).

Next Steps
The next step for this project is to disseminate the recommended community strategies and suggested measurements for use by local governments and communities throughout the United States. To help accomplish this, an implementation and measurement guide will be published and made available through the CDC website (available at http://www.cdc.gov/nccdphp/dnpao/publications/index.html). In addition, the measurements will be integrated into a new survey module that will be available to all members of ICMA's Center for Performance Measurement. Dissemination of these recommended obesity prevention strategies and proposed measurements is intended to inspire communities to consider implementing new policy and environmental change initiatives aimed at reversing the obesity epidemic. The recommended strategies and suggested measurements outlined in this report are being pilot tested in the Minnesota and Massachusetts state surveillance systems (Laura Hutton, MA, Minnesota Department of Health, personal communication, 2009; Maya Mohan, MPH, Massachusetts Department of Health, personal communication, 2009).

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Friday, July 17, 2009

Of Rain And Apples

It's been a longer week, and I have to say I'm faintly relieved it's over. I sit here, staring out the door at the light rain falling, listening to it hit the leaves of the bushes nearby, and have to say I still am not minding it being a wet spring/summer so far. I know others are ready to riot over it, but I am enjoying it very much.

It seems as if, until the week, I've been going at full speed and never catching up. I'm still not nearly caught up, but am taking a breath anyway. It's allowing me to see what I really need to do and to gear up for the next round of chaos. This past week has really shown how much I've run myself down. My allergies have really taken over, making a trip to the doctor with prednisone and eye drops being necessary for at least a week.

However, blueberries don't stop ripening, the grass doesn't stop growing and the list of big projects isn't getting any shorter. So I keep doing. Today, however, was a different story. I decided to work on 2 very neglected apple trees. They're on our neighbor's property, but as long as I give her some of the apples in the fall, I can do whatever I want to the trees. Considering I usually don't get a chance to work on them until September, it's obviously a little earlier than usual.

It's been at least 20 years since these trees had any significant pruning, so a few years ago I began. Today was another one of those pruning days. I always start out working on the ground and hope that I've got the trees so I can back Dad's truck up under it to work higher in the branches. By taking many of the smaller branches out, it allows the tree to get much needed air circulation througout its canopy. Plus, those branches take valuable energy away from the tree, making it far more susceptible to diseases and low grade fruit.

While pruning, a bunch of the green apples fell. It always makes me mad - it seems so wasteful. I know I have to thin many of the apples to get larger apples, but I still get mad to see them fall. I decided to try making green apple jelly. It had started to rain, and I had a couple of quarts of the little green rocks, so figured it would be a good time to play.

I washed them up, got my handy dandy chop wizard out and ca-chunked them into little pieces. Fast! I then set them to cook for about 30 minutes. Sieved them through a fine screen to make a thin apple sauce and then cooked them according to general apply jelly directions.

It's nothing special to look at, but it tastes just like apple pie! Wonderful stuff! I'm thrilled! A way to take waste and make it delicious and useful. There is nothing better. Apple pie on toast. I'm looking forward to it!

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Saturday, July 11, 2009

Go To Your Famers Markets And Buy Something

(Photo from CountryBlooms.org of a vender at Otsiningo's Market in Broome County, NY)

Many countries actually don't understand the US farmer's markets. They have local markets where they buy their food nearly every day, so of course the food is local, of course it's organic!

A college room mate of mine talked of life back in South Korea where an apple weighed a pound and the family would share it as dessert after dinner. The size of the apple is as foreign as the concept of sharing. But that is how the American culture has evolved. Even apples are mass produced and thinned to achieve the ideal single servince size. The big, small or "ugly" ones are tossed aside to be processed into something similar to apples.

Did you know "Ugly" tomatoes can not be shipped out of the state of FL? It's law! They taste the best, but don't conform to modern standards, so can only be used within the state. Go figure!

And yet, we wonder why our nutrition is poor and we dislike vegetables. How many children have had truly fresh vegetables? Or nearly grown in their own back yard? They think vegetables are found in cans, jars, pouches thrown into the microwave or as dried bits in instant soups. We have more than 1 generation of people in this ocuntry that has no gardening experience. How sad is that?

Well, rather than starting a garden, go to a local market. Go to Local Harvest - to find a Farmer's Market near you. Start buying some of your vegetables there. You will discover what spinach or beets or string beans or tomatoes are really supposed to taste like! The vegetables will be far more nutritious than anything you find in the stores - even Whole Foods! Remember - the deeper the color, the more nutritious it is.

When you discover the flavor and the nutrition - you *will* feel better - you'll not want the compost they sell as vegetables in the frozen food aisle at the grocery. You'll want this quality all year. That means you just might have to preserve them for yourself! It's easy, we've been doing it for generations. All you need to do is talk to the growers and negotiate for a bulk price. It will end up costing you less than grocery store prices, will use less energy to preserve than the industrial vegetables, and will be better for you.

You will discover what a bean looks like, what a beet looks like, what a *real* tomato looks like.

You will discover different ways of using those vegetables and fruits. If you ask the growers, they'll share their favorite recipes with you.

I had no clue summer squash was so versatile until I had a bumper crop beyond compare. A little research online and I froze 3 gallons to use throughout the winter - it was delicious!

Here's one my family loves! It's good old fashioned farm food - using ingredients common to most farms from pre WWII. It's the perfect spring and summer dinner.

Peas, Potatoes and Milk

Dice your potatoes to the size of peas. Cook with equal amount peas until almost soft. Drain.
Add milk. Heat to boiling. Add butter, salt, pepper.

Spoon over fresh white bread, enough so the milk soaks the bread - usually in a shallow soup bowl. Eat with fork or spoon.

You can do this with chopped string beans as well, for an equally delicious and nutritious meal.
If you want, add some chopped summer squash to the mix, after the beans and potatoes have cooked about half way.

You won't find this simple, yet delicious recipe in any cookbook. Which is why you must get to know the sellers at the farmers market. Go! Shop! Eat well! Support local farmers! It's a no-lose situation.

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Sunday, April 12, 2009

A Day In The Life Of

Chickens.

LOL

You'd be surprised at the number of people who have never seen chickens doing what they do best - forage.

The only pictures or videos seen anymore are of chickens in huge barns, all white, except where other chickens have crapped on them, just milling about.

Chickens do a lot more. They're great for insect control, removing thatch from a yard, fertilizing, egg laying, and of course, eating. They're also a great source of entertainment.

Since I grew up around chickens, it was pretty easy to see my brother's flock doing their thing. But trying to convey this to our friends who've never been around chickens was another thing entirely. So, I asked my brother to take a video. And now he's looking at getting a chicken cam.

LOL - I'll put a link to it when he gets one set up.

Until then, enjoy this video. You can hear them clucking and talking to each other. Just don't jack the volume up too much since the rooster does crow. Twice.



Video Link

And for more - the history of these chickens:
The First Chickens
The Coolest Chicken Coop
Their First Day In The Wild Green Yonder

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Thursday, March 19, 2009

My Brother's Chickens

3/19/09 - Well, he's at it again. He's tripling his "herd" (I know, flock. But I'd like to call him a chicken herder. LOL). Today he's going somewhere down in PA to get another 20 chickens. Don't know if they're the same breed as what he has now, but he's getting more. He has the demand for eggs, and he has plenty of property to put them on, so he might as well increase his population.

Good for him!


And here's a picture of his chicken coop in action, with chickelfinks attached. He couldn't decide which to put on the 'back' of the coop, so both went on the 'front'.





The spring of 2008 had a neighbor of my brother bring him some chicks and proclaimed him a chicken farmer.

Naturally, my brother kept them and, has indeed, begun his chicken farming stage of life.

These chickens are Plymouth Rock - barred variety. Who knew there are 7 varieties of Plymouth Rocks out there?





Naturally, once fall came, he had to build them a coop. Being the over-engineering sort, and plenty of wood to harvest as lumber, he made them a COOP. Those chickens have no clue how good they have it. As you can see, it's a 2-story coop. And it's portable! He can move it with his tractor to new foraging whenever he wants. The chickens apparently love it when they move and come out to watch the tractor whenever he starts it up. The second floor has roosts and nesting boxes that you can access from the outside with a hinged portion of the roof. Easier egg gathering and cleaning - no bending!

Once I saw the design, I was driven to make him some distelfinks. Only - distelfink for a chicken just doesn't sound right - so, I totally bastardized the concept and called them chickelfinks. I've not gotten any pictures of them on the coop, but I'm sure I'll get one someday. Obviously, I took great liberties with the second one. However, for chickens, it just seemed incredibly appropriate! The first is far more traditional, using standard symbols and colors. The only non-standard part is the rooster instead of a finch.







The amazing part is, these chickens are already laying eggs! I figured early spring would be the soonest, but they're doing quite well - especially for pullets (hens less than a year old. The rooster is a cockerel until he's a year old - then he's a cock).

A little tidbit I found while doing my turkey farming research is that chickens with white earlobes lay white eggs and chickens with red ear lobes lay brown eggs - with a few exceptions.

First - WHO knew chickens had earlobes and WHO looked?

And if they lay speckled eggs, is it because they have freckles on their earlobes or what?
Ah well, that little bit of pondering will have to wait for another day. So do they have varying shades of red earlobes? And the 2 eggs on the far right are speckled - freckled earlobes? If they lay consistently the same shade/tone, we have eggs from 4 different hens. But, I don't know if they do lay consistently or not. Such research to do!

I honestly don't know what my brother will do with all of his eggs. I've offered up different people within my circle who would love to buy them, but I've not hear. He may already have them all spoken for. But considering he'll be getting an average of 2 per day from each hen, that's 20/day to get rid of. LOL Just a few.

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Friday, January 23, 2009

50-Year Farming Plan

Sent to me by Jerome Rigot

A 50-Year Farm Bill
By WES JACKSON and WENDELL BERRY
Published: January 4, 2009

THE extraordinary rainstorms last June caused catastrophic soil erosion in the grain lands of Iowa, where there were gullies 200 feet wide. But even worse damage is done over the long term under normal rainfall — by tthe little rills and sheets of erosion on incompletely covered or denuded cropland, and by various degradations resulting from industrial procedures and technologies alien to both agriculture and nature.

Soil that is used and abused in this way is as nonrenewable as (and far more valuable than) oil. Unlike oil, it has no technological substitute — annd no powerful friends in the halls of government.

Agriculture has too often involved an insupportable abuse and waste of soil, ever since the first farmers took away the soil-saving cover and roots of perennial plants. Civilizations have destroyed themselves by destroying their farmland. This irremediable loss, never enough noticed, has been made worse by the huge monocultures and continuous soil-exposure of the agriculture we now practice.

To the problem of soil loss, the industrialization of agriculture has added pollution by toxic chemicals, now universally present in our farmlands and streams. Some of this toxicity is associated with the widely acclaimed method of minimum tillage. We should not poison our soils to save them.

Industrial agricultural has made our food supply entirely dependent on fossil fuels and, by substituting technological "solutions" for human work and care, has virtually destroyed the cultures of husbandry (imperfect as they may have been) once indigenous to family farms and farming neighborhoods.

Clearly, our present ways of agriculture are not sustainable, and so our food supply is not sustainable. We must restore ecological health to our agricultural landscapes, as well as economic and cultural stability to our rural communities.

For 50 or 60 years, we have let ourselves believe that as long as we have money we will have food. That is a mistake. If we continue our offenses against the land and the labor by which we are fed, the food supply will decline, and we will have a problem far more complex than the failure of our paper economy. The government will bring forth no food by providing hundreds of billons of dollars to the agribusiness corporations.

Any restorations will require, above all else, a substantial increase in the acreages of perennial plants. The most immediately practicable way of doing this is to go back to crop rotations that include hay, pasture and grazing animals.

But a more radical response is necessary if we are to keep eating and preserve our land at the same time. In fact, research in Canada, Australia, China and the United States over the last 30 years suggests that perennialization of the major grain crops like wheat, rice, sorghum and sunflowers can be developed in the foreseeable future. By increasing the use of mixtures of grain-bearing perennials, we can better protect the soil and substantially reduce greenhouse gases, fossil-fuel use and toxic pollution.

Carbon sequestration would increase, and the husbandry of water and soil nutrients would become much more efficient. And with an increase in the use of perennial plants and grazing animals would come more employment opportunities in agriculture — provided, of course,, that farmers would be paid justly for their work and their goods.

Thoughtful farmers and consumers everywhere are already making many necessary changes in the production and marketing of food. But we also need a national agricultural policy that is based upon ecological principles. We need a 50-year farm bill that addresses forthrightly the problems of soil loss and degradation, toxic pollution, fossil-fuel dependency and the destruction of rural communities.

This is a political issue, certainly, but it far transcends the farm politics we are used to. It is an issue as close to every one of us as our own stomachs.

Wes Jackson is a plant geneticist and president of The Land Institute in Salina, Kan. Wendell Berry is a farmer and writer in Port Royal, Ky.

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Friday, September 12, 2008

Apple Sauce

I think making applesauce is my absolute favorite of all preserves.

It all started last Sunday when I was walking my cat. Yes, I walk my cat. Twice a day even.

We were taking our normal route, when I noticed a squirrel had discovered the MacIntosh tree! Ooo - this means war! I hadn't planned on picking that day, but obviously plans changed.

I got my trusty new apple picker,

a couple of boxes and my garden cart to proceed with the apple picking..

I picked about a bushel and a half of apples from the tree - missing one branch entirely. Ooo! That makes me so mad!


Since the picking itself got my vertigo up, I chose to wait a day or so before making the applesauce. I mean, if an apple can be stored for months, it can wait another few days.

The next morning, after our walk, I was sitting on the deck with my cat, enjoying my coffee and the birds singing while they ate their breakfast, when I noticed a squirrel coming across the roof of our garage. He came right to the front left corner - closest to the house, and just stared down. There are no trees around it. So I *know* he's staring at me, and at the apples. LOL I was getting the tink eye from a squirrel!
What I'm finding even more funny is the fact that he hasn't gone back to the tree - to find out there's a branch FULL of fruit! I'll be going for that next.
So - back to the applesauce. Put some duct tape on my index finger of my knife hand and get to work. Wash the apples, cut the apples away from the core, throw them in a big sauce pan with some water so it doesn't scorch and cut them hot and fast.
Put through the foley food mill and hope it doesn't splop on you. Repeat until your done.
23 pints the first day, 27 pints the second day.
Trust me, if you ever make your own applesauce, you will never eat store-bought again. It has no flavor. Sugar is cheaper than fruit, so what you get is mushy sugar water. And probably corn syrup at that. Making your own allows you to use as much or as little sugar as you want, and it can all be pure cane sugar. It can be brown sugar, it can be molasses. I wouldn't advise honey, even with it being canned. I wouldn't trust that would kill all of the enzymes, unless you used a pressure cooker.
So, we now have virtually enough to have a pint a week for the entire year.
And if I go back for that final branch, we will have enough!
And normally when I make sauce, I like using at least 2 different types of apples, but this year we haven't had frost yet and this was my one opportunity to make it.

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