Age‑tailored longevity diet

A longevity diet should not be a one‑size‑fits‑all calorie cut: emerging meta‑analytic evidence supports tailoring macronutrient ratios by life stage (for example, lower animal protein in midlife but increased protein after ~65 to counter frailty), prioritize high‑fiber plant carbs and unsaturated fats, and build diet guidance around quality and timing rather than blanket caloric restriction. — If adopted, an age‑stratified, evidence‑based dietary framework could reshape public nutrition guidelines, clinical advice for older adults, and debates about the practicality of calorie restriction.