Bottom round roast is one cut of beef that fits the government's definition of "lean." Still, the definition is confusing to consumers, nutrition scientists argue. Paul Polis/Corbis hide caption

itoggle caption Paul Polis/Corbis

A government-appointed panel concluded in a recent report that Americans should eat less red meat and processed meat. A more plant-focused diet is better for health and the environment, it found. Andrew Burton/Getty Images hide caption

itoggle caption Andrew Burton/Getty Images

A daily cup of joe (or two) may help protect against Type 2 diabetes and cardiovascular disease. And an egg a day will not raise the risk of heart disease in healthy people, according to a panel of nutrition experts. Premshee Pillai/Flickr hide caption

itoggle caption Premshee Pillai/Flickr

The University of California's Nutrition Policy Institute has proposed that MyPlate include an icon for water. UC Division of Agriculture and Natural Resources hide caption

itoggle caption UC Division of Agriculture and Natural Resources