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Learn About the Process

The Dietary Guidelines for Americans, 2025-2030 (Dietary Guidelines) is developed using a scientifically rigorous, multi-year process. The U.S. Departments of Health and Human Services (HHS) and Agriculture (USDA) are committed to providing clear information to the public and providing opportunities for public participation during the process. Visit this page to learn more about the Dietary Guidelines development process.

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2025 Dietary Guidelines Advisory Committee 

HHS and USDA appointed 20 nationally recognized experts to serve on the 2025 Dietary Guidelines Advisory Committee (Committee). The independent Committee will review scientific evidence on the topics and questions related to nutrition and health and provide a report on their findings to the Secretaries. 

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Scientific Questions

The Committee is examining a list of prioritized scientific questions, informed by the proposed list of scientific questions identified by HHS and USDA. The scientific questions guide the Committee’s evidence review on nutrition and health from birth through older adulthood.

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Examine the Evidence

The Committee uses three approaches to examine the evidence: Data analysis, food pattern modeling, and systematic reviews. Each of these approaches has its own rigorous, protocol-driven methodology, and plays a unique, complementary role in examining the science. Use the buttons below to explore these methodologies and how the Committee is applying these methods to its work.

Data AnalysisFood Pattern ModelingSystematic Reviews

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Get Involved

There are multiple opportunities for public participation before, during, and after the Committee’s review of the evidence. Visit this page to learn how to submit written comments to the Committee or attend virtual public meetings.

Submit a CommentVirtual Public Meetings

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