Rethinking protein: should you eat more to age better?

A Frontiers in Nutrition perspective argues current protein guidelines may be too conservative for healthy aging, suggesting intake could rise to about 1 g per pound of body weight (roughly 1.2–1.6 g/kg/day depending on activity) to support muscle recovery, fat loss, weight management, and bone health—especially for active adults, older adults, and pregnant people. While high-quality, whole-food protein sources can meet these needs, the article cautions that very high intakes could pose digestive, kidney, or vascular risks, particularly for those with kidney disease, and stresses that protein should be paired with regular resistance training and a heart-healthy diet. Guideline changes for the general population are typically slow and require extensive evidence.