USDA's Nutrition Evidence Library conducts systematic reviews to assist in the formulation of federal policy. Among the areas in which reviews were conducted are:
- The relationship between dietary patterns and health outcomes
- Childhood obesity
- The effects of nutrition education on children's and adolescents' dietary intake
This website also provides a detailed evidence portfolio for each of the 2020-25 Dietary Guidelines Advisory Committee's systematic evidence reviews. The reviews are grouped by:
- Dietary Patterns, Foods and Nutrients
- Individual Diet and Physical Activity Behavior Change
- Food and Physical Activity Environments
- Cross-Cutting Topics of Public Health Importance