According to the Agriculture Department's 2010 Dietary Guidelines for Americans, added sugars contribute an average of 16 percent of the total calories in U.S. diets. Though those naturally occurring sugars and the added sugars act the same in the body, the department says the added sugars are just empty calories while naturally occurring ones usually come along with other nutrients.
David Kessler, who was FDA commissioner when the first Nutrition Facts labels were unveiled in the early 1990s, said he thinks focusing on added sugars and calories will have a public health benefit. He said the added sweetness, like added salt, drives overeating. And companies will adjust their recipes to get those numbers down.
While some people ignore the panels, there's evidence that more are reading them in recent years as there has been a heightened interest in nutrition. An Agriculture Department study released earlier this year said 42 percent of working adults used the panel always or most of the time in 2009 and 2010, up from 34 percent two years earlier.