The Departments of Health and Human Services and Agriculture just released the 2025-2030 Dietary Guidelines for Americans, resetting the federal nutrition advice that shapes how Americans eat.
That reset comes after decades of guidance that failed to keep pace with evolving science -- or with the scale of America's chronic disease crisis. As a physician, I have seen firsthand how federal recommendations emphasizing low-fat, carbohydrate-heavy diets coincided with skyrocketing rates of obesity and diet-related disease. The guidelines helped create an atmosphere where Americans became sicker, not healthier.
Against that record, the updated guidelines represent a much-needed course correction. They move federal nutrition advice away from one-size-fits-all, carbohydrate-heavy prescriptions and toward a more flexible, evidence-based focus on diet quality and metabolic health. The progress is meaningful, even as important work remains.
The guidelines mark a clear departure from past frameworks that implicitly favored refined grains and highly processed substitutes. By refocusing on whole foods from both plant and animal sources, the guidance centers nutrient density and food quality -- recognizing vegetables and fruits alongside meat, poultry, fish, eggs, and dairy as core components of a healthy diet.
That emphasis on real, whole foods is reinforced by a restoration of protein to a central role. Treated for years as secondary to carbohydrate intake, the updated guidelines recognize protein's importance in preserving lean muscle, supporting metabolic health, improving satiety, and promoting healthy aging. By moving beyond a bare-minimum deficiency framework and acknowledging body-appropriate protein needs, the guidance aligns more closely with clinical evidence.
The guidelines also take a more direct approach to refined carbohydrates and added sugars by more clearly acknowledging the metabolic risks of their excess intake. In today's highly processed food environment, curbing pasta, bread, and sweets can help many people stabilize blood sugar, limit insulin spikes, and improve energy levels.
In fact, for the first time, the guidelines explicitly acknowledge that Americans with certain chronic diseases may benefit from therapeutic low-carbohydrate dietary approaches. That recognition aligns with decades of evidence demonstrating improvement -- and in many cases reversal -- of conditions such as obesity, type 2 diabetes, hypertension, and fatty liver disease.
Mounting research suggests potential benefits for some serious mental health conditions as well.
This shift is particularly important given today's health landscape. More than 75% of U.S. adults are overweight or have obesity. Roughly 93% show signs of metabolic dysfunction, and nearly one in three adolescents has prediabetes. Nutrition guidance that reflects these realities is far more likely to help Americans prevent and manage disease.
With that in mind, the focus now turns to implementation. Building on this momentum will require nutrition and healthcare guidance that better meets Americans where they are and ensures federal programs can support the dietary approaches the guidelines now endorse for improving metabolic health. That work should draw and build on decades of scientific and clinical expertise and include clearer guidance on tailoring fat, protein, and carbohydrate intake to individual needs.
This need for clarity is especially evident when it comes to dietary fat. The guidelines' emphasis on whole, nutrient-dense foods -- including meat, fish, eggs, and dairy -- is welcome. At the same time, the long-standing recommendation to limit saturated fat to 10% of daily calories -- which these guidelines retained -- will require careful interpretation in the context of whole food sources and overall dietary patterns.
For Americans following lower-carbohydrate approaches, who rely more heavily on protein and fats for energy as they reduce carbohydrate intake, rigid fat caps can make these diets harder to follow. Thoughtful implementation should allow for flexibility, recognizing that fat intake is best evaluated alongside carbohydrate intake and individual metabolic needs.
Looking ahead, this points to an opportunity to continue modernizing saturated-fat guidance, with more precise, dietary-pattern-specific recommendations that support practical, health-promoting food choices.
Other areas would also benefit from continued refinement. The updated guidelines still recommend two to four servings of grains per day. In practice, particularly within federal programs, this can shape implementation choices that favor refined and processed grain products over truly fiber-rich whole foods.
On the implementation side, a similar opportunity exists with added sugars. While the new guidelines don't outright ban added sugars, they clarify that no amount is recommended as part of a healthy diet. Ideally, school lunch programs should respond by further limiting sweetened cereals, sugary yogurts, and flavored milk, especially as childhood obesity and metabolic disease rise.
The 2025-2030 Dietary Guidelines mark real progress. They recognize the central role of diet quality, acknowledge the importance of metabolic health, and move federal nutrition policy closer to what modern science and clinical experience support.
The task now is to build on that progress through thoughtful implementation and continued refinement. Nutrition policy should help Americans prevent and manage chronic disease -- and these guidelines provide a strong foundation to do so.
Bret Scher, MD, is a board-certified cardiologist and lipidologist and the founding medical director of the Coalition for Metabolic Health.
