In 2026, the new US Dietary Guidelines were released, reigniting the debate about the focus on nutrients. Marion Nestle, professor emerita at New York University and a nutrition expert, commented on the new guidelines, highlighting that they are contradictory: the priority given to protein is difficult to understand, since most Americans already consume a significant amount of protein. Furthermore, they revert to a reductionist food pyramid model, focused on nutrients and without considering the level of food processing.