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

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