Logan Kovach, 6, Matthew Kovach, 2, and Allyson Kovach, 5, eat a lunch distributed by the YMCA in Hopkins County, Kentucky. Pam Fessler/NPR hide caption

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Playing outside can help kids — and their parents — maintain a healthy weight. iStockphoto hide caption

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Advocates for healthy food in Virginia schools have met a reversal, after cafeterias changed back to hamburgers with additives due to students' complaints. The schools had been serving all-beef burgers such as these, being grilled at a farmer's market. Paul J. Richards/AFP/Getty Images hide caption

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Renande Raphael, aged 16 months, is measured to check whether she is growing normally. She's part of a trial in Haiti to see if an extra daily snack of enriched peanut butter prevents stunting and malnutrition. Alex E. Proimos/via flickr hide caption

itoggle caption Alex E. Proimos/via flickr

The new nutrition standards will replace school lunch dishes like pizza sticks with salad. iStockphoto.com hide caption

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