The 2025–2030 Dietary Guidelines for Americans are associated with higher land, water and nitrogen use, and greenhouse gas emissions (opens in new tab)

Proceedings of the National Academy of Sciences, Volume 123, Issue 24, June 2026. Dietary guidelines form the foundation of federal food policy, informing programs such as the Supplemental Nutrition Assistance Program (SNAP), government food procurement, school meals, and military and hospital food services. The most recent guidelines, ...