5 questions about the next U.S. dietary guidelines, and the 'impossible restriction' on them

Here’s the paradox: The most influential set of rules for the foods we eat are the ones most of us ignore. But they still matter for millions of  Americans.

The Dietary Guidelines for Americans, reviewed and issued by the federal government every five years, have broad impact on what goes into federal nutritional assistance programs, from WIC for women and young children to school lunches to meals for veterans or seniors. Yet 63% to 90% of people in the United States, depending on the nutrient, exceed recommended levels for added sugar, saturated fats, and sodium; 75% fall below standards set for vegetables, fruits, and dairy.  

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