Analysis of the 2025-2030 Dietary Guidelines for Americans

In a previous post, I reviewed the 2025-2030 Dietary Guidelines for Americans (Have You Read the New “Dietary Guidelines for Americans, 2025-2030”?). For more insight into this topic, the following commentary is useful:

  • DK Tobias, FB Hu. NEJM 2025; 394: 1969-1971. The 2025–2030 Dietary Guidelines for Americans — Progress, Pitfalls, and the Path Forward

Background: “The Dietary Guidelines for Americans (DGAs), updated every 5 years by the U.S. Department of Agriculture (USDA) and the Department of Health and Human Services (HHS), set nutrition standards for federally supported programs, including school, military, and institutional meals; elements of the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) and the Supplemental Nutrition Assistance Program (SNAP); and related public education and implementation efforts. The DGAs also influence federal policies and regulations, clinical practice and health professional education, food marketing, industry formulation, and individual food choices.”

Key points:

  • “In the current cycle, although the DGAC [Independent Dietary Guidelines Advisory Committee] rigorously adhered to established procedures,3 its extensive report was not adopted as the guidelines’ scientific basis, and only 14 of its 56 specific recommendations were implemented. The USDA and HHS cited the committee’s evaluation of the evidence “through a health equity lens” … as their central rationale for dismissing most of its recommendations.”
  • “The new DGAs reintroduce the 1992 food pyramid, but invert it to feature meat, poultry, and full-fat dairy products more prominently, alongside vegetables and fruits, while relegating whole grains to the bottom wedge — an arrangement suggestive of a low-carbohydrate diet.”
  • “The new DGAs increase recommended protein intake to 1.2-to-1.6 g per kilogram of body weight per day — as high as double the adult recommended dietary allowance (0.8 g per kilogram per day).4 … But most Americans already consume well above the recommended dietary allowance of protein, primarily from animal sources,3 and there is little evidence that substantially increasing population protein intake confers additional health benefits.”
  • “The protein guidance appears to place greater visual and messaging emphasis on animal sources…This shift diverges from the broader scientific consensus, including the DGAC’s conclusion that dietary patterns higher in plant-derived proteins and fats, fruits, vegetables, and whole grains are associated with lower risks of chronic diseases, whereas higher intakes of red and processed meats are associated with increased risks.”
  • “The 2025–2030 DGAs embrace concise, consumer-oriented messaging, emphasizing that Americans should “eat real food” and eat less highly processed food.1 Although this advice reflects growing concern about ultraprocessed products, its lack of specificity regarding ingredients or quantitative thresholds limits its policy relevance.”
  • “Although the new DGAs continue to recommend limiting alcohol consumption, they no longer specify the quantitative upper limits included in previous guidelines, raising questions about the recommendations’ clarity and consistency.”
  • “Restoring confidence in the DGAs will require stronger scientific grounding and greater transparency in their development.”

My take: Many of the recommendations appear to fall in line with previous viewpoints expressed by RFK Jr, regardless of what independent experts have advised. Overall, the new guidelines do not represent a significant improvement from the previous guidelines due to the problems outlined in this commentary.

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Guanaco in Patagonia, Argentina

NY Times: “U.S. Diet Guidelines Sidestep Scientific Advice”

NY Times (12/29/20): U.S. Diet Guidelines Sidestep Scientific Advice

An excerpt:

“Rejecting the advice of its scientific advisers, the federal government has released new dietary recommendations that sound a familiar nutritional refrain, advising Americans to “make every bite count” but dismissing experts’ specific recommendations to set new low targets for consumption of sugar and alcoholic beverages...

The dietary guidelines have an impact on Americans’ eating habits, influencing food stamp policies and school lunch menus and indirectly affecting how food manufacturers formulate their products…

The new guidelines do say for the first time that children under 2 should avoid consuming any added sugars, which are found in many cereals and beverages.”

USDA Website: Dietary Guidelines for Americans

Related article: NY Times (Print edition 12/27/20) Obesity Rates Soar in China and Officials Take Action. Online (12/24/20): Influencers May Face Fines as China Tackles Obesity and Food Waste An excerpt:

“34.3 percent of adults were overweight and 16.4 percent were obese. It looked at a group of 600,000 Chinese residents between 2015 and 2019. By comparison, 30 percent of Chinese adults were overweight and 11.9 obese in 2012…obesity among American adults has increased 12.4 percent over the past 18 years, with 42.4 percent of adults in the United States now living with the condition.

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Scrutiny Over Expertise with Dietary Guidelines

From NY Times: Scientific Panel on New Dietary Guidelines Draws Criticism from Health Advocates

An excerpt:

More than half the members of a panel considering changes to the nation’s blueprint for healthy eating have ties to the food industry…

Marion Nestle, a nutrition expert at New York University who served on the advisory panel in 1995, said the large number of experts with industry ties reflected the dearth of public funding for nutrition science, which forces many researchers to accept funding from food companies and industry associations. “Anyone who thinks it’s not OK to accept corporate money would never get appointed to that committee,” she said. “That’s considered so biased that you’re too biased to function.”

Despite concerns about this year’s process, Ms. Nestle said she believed the new guidelines would likely resemble the recommendations that were issued five years ago. The bigger issue, she said, is that most Americans will find the guidelines hard to decipher and unsure how to apply them to their own eating habits.

“Every five years, the guidelines get longer and more complicated,” she said. “In my view, the advice is the same: Eat your vegetables don’t gain too much weight and avoid junk foods with a lot of salt, sugar and saturated fat.”

My take: Most well-informed individuals lack confidence that this the administration is working to improve dietary guidelines, regardless of who is selected to be on their committees.

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