The "Dietary Guidelines Reform Act of 2025" aims to significantly amend the National Nutrition Monitoring and Related Research Act of 1990, primarily by reforming how the Dietary Guidelines for Americans are established. It changes the required publication frequency of these reports from every five years to at least every 10 years, though more frequent updates are permitted if deemed necessary due to updated dietary reference intake values or scientific advancements. A key procedural change is the requirement for rulemaking under section 553 of title 5, United States Code, for the development of each report.

The bill mandates that the dietary guidelines be based on significant scientific agreement, determined through a rigorous evidence-based review process, and derived from questions generated by an Independent Advisory Board. Guidelines must be current, address high-priority health concerns, promote nutritional adequacy, and be affordable, available, and accessible to the general population. They must also include nutritional information relevant to individuals with common nutrition-related chronic diseases, and each guideline must be assigned a strength of evidence rating.

To enhance scientific rigor and transparency, the bill establishes an Independent Advisory Board of up to eight members with expertise in nutrition or food science, tasked with generating scientific questions for the report. It also requires coordination with the Joint United States-Canada Dietary Reference Intake Working Group to ensure dietary reference intake values are updated regularly. Crucially, the bill explicitly excludes topics not relevant to dietary guidance, such as taxation, social welfare policies, food production practices, socioeconomic status, race, religion, ethnicity, culture, or regulations relating to nutrition. Finally, it allocates $5,000,000 annually for fiscal years 2025 through 2029 to fund these reforms.