The Dietary Guidelines for Americans (DGA) is a government-produced document that provides nutrient and food group, physical activity, and food safety information and guidance for nutrition educators and policymakers. The guidelines are updated every five years to reflect the latest research findings and nutrition trends in American.

Issued jointly by the USDA and U.S. Department of Health and Human Services, the DGA is available at:

http://www.healthierus.gov/dietaryguidelines.

The lengthy document is written in accessible language and broken into nine topic areas. It includes lists of food sources of various nutrients that are commonly under-consumed in the American diet.