Less Protein, Healthier Aging? New review hints at a nuanced approach

A broad review of 350+ studies suggests that for many adults, eating less protein could support healthier aging by raising energy expenditure through the FGF21 hormone and altering cell-growth signals; the traditional 0.8 g/kg/day baseline may suffice for sedentary individuals, but needs vary with age, activity, and health, and the findings come with limits since many studies are animal-based.