People following a 5-2 diet would eat lean protein and non-starchy vegetables two days a week. Heather Rousseau/NPR hide caption

itoggle caption Heather Rousseau/NPR

The white egg yolk at left, seen next to a yellow yolk, may seem strange, but it's just a result of the chicken feed used, scientists say. Junko Kimura/Getty Images hide caption

itoggle caption Junko Kimura/Getty Images

The FDA's proposal follows concerns raised by consumer groups about levels of inorganic arsenic, a carcinogen, in apple juice. iStockphoto.com hide caption

itoggle caption iStockphoto.com

The cover of Eating on the Wild Side. Little Brown and Company hide caption

itoggle caption Little Brown and Company

Long John Silver's Big Catch platter will net you 33 grams of trans fats in one meal. Courtesy of Clare Politano/Center for Science in the Public Interest hide caption

itoggle caption Courtesy of Clare Politano/Center for Science in the Public Interest