PolicyBrief
S. 1129
119th CongressMar 25th 2025
Dietary Guidelines Reform Act of 2025
IN COMMITTEE

The Dietary Guidelines Reform Act of 2025 aims to improve the process for establishing national dietary guidelines by ensuring they are based on strong scientific evidence, updated regularly, and free from irrelevant considerations, while also increasing transparency and managing conflicts of interest.

Roger Marshall
R

Roger Marshall

Senator

KS

LEGISLATION

Dietary Guidelines Shake-Up: Bill Mandates 10-Year Updates, Focuses on Science & Accessibility

The way America gets its official advice on healthy eating could be getting a major overhaul. The Dietary Guidelines Reform Act of 2025 proposes significant changes to how the U.S. Dietary Guidelines are developed and updated, amending the National Nutrition Monitoring and Related Research Act of 1990. The core idea is to ensure these guidelines, which influence everything from school lunches to doctor's advice, are updated at least every 10 years using a more structured, science-driven process.

Fresh Ingredients for Guideline Development

So, what's actually changing? First, the timeline. While updates can happen sooner if needed, the bill sets a minimum 10-year cycle for refreshing the guidelines (Sec. 2). This process must follow formal rulemaking steps, adding a layer of public procedure. The guidelines themselves need to be rooted in "significant scientific agreement," determined through a formal "evidence-based review." This review process involves systematically collecting and analyzing scientific evidence, using standardized methods, and getting outside experts (peer review) to check the work. Each guideline will also get a rating based on the strength of the evidence behind it.

Second, the focus sharpens. Future guidelines must tackle high-priority health concerns, aim for nutritional adequacy (making sure people get the nutrients they need), and importantly, include specific advice for people managing common chronic diseases like diabetes or heart conditions. There's also a mandate to make recommendations that are actually achievable for regular folks – meaning affordable, available, and accessible (Sec. 2).

Who's Cooking Up the Advice?

The bill establishes a new, temporary Independent Advisory Board of up to 8 experts in nutrition or food science (Sec. 2). This board's job is to develop the scientific questions that will guide the main Dietary Guidelines Advisory Committee's work. Think of them as setting the research agenda. Transparency gets a nod too: anyone appointed to either the advisory board or the main committee must fully disclose financial and non-financial conflicts of interest, and these disclosures will be made public along with a plan to manage any conflicts.

Keeping the Focus Narrow

Interestingly, the bill explicitly states what the dietary guidelines shouldn't cover (Sec. 2). Topics considered irrelevant to direct dietary guidance – like taxation strategies, broader social welfare policies, or specific food production practices (think organic farming or GMOs) – are off the table. The goal seems to be keeping the advice tightly focused on nutrition and health outcomes based on food consumption. This means future guidelines might not weigh in on the environmental impact of food choices or specific farming methods, concentrating solely on the nutritional science.

To make all this happen, the bill earmarks $5,000,000 per year for fiscal years 2025 through 2029 (Sec. 2). Until the first report under these new rules is published, the 2020 Dietary Guidelines remain the official standard.