New US dietary guidelines spark debate with 'Keto Cone' and mixed fat advice

The newly released 2025-30 Dietary Guidelines for Americans have triggered widespread discussion among health experts. The updated advice stands out for its shorter format—a concise 10-page document—and a striking new visual, dubbed the 'Keto Cone' or 'Dairy Queen Pyramid'. Changes in both content and presentation mark a clear departure from earlier versions.

The guidelines now place greater emphasis on whole, minimally processed foods while raising the profile of meat and whole milk. However, they still advise limits on saturated fat, a balance that some nutritionists argue could confuse consumers.

The process behind these guidelines differed from previous cycles. Experts reviewed the science in a way that broke from tradition, though specifics of the changes remain unclear.

A major point of contention is the focus on protein. Critics question whether Americans truly need more protein and debate the best sources for obtaining it. Meanwhile, the food industry is already preparing to adapt, with plans for protein-fortified drinks, products labelled 'no seed oils,' and higher-fat dairy options.

Beyond the guidelines themselves, scepticism persists about their real-world impact. Many specialists doubt whether dietary advice alone can improve public health without matching investments. They point to gaps in food access, school meal programmes, and broader infrastructure as barriers to meaningful change.

The 2025-30 guidelines introduce a shorter, visually distinct approach to nutrition advice. Their mixed messaging on meat, dairy, and fats—alongside industry responses—will likely shape food trends in the coming years. Yet, without supporting policies, the effect on national eating habits may remain limited.