Reducing protein intake could support healthy aging by reshaping metabolism

MedicalXpress | 七月 31, 2026

Protein-fortified foods are popping up everywhere, from cereal and coffee to even protein water. But a new review covering more than 350 papers on protein restriction and aging—published July 31 in the journal Cell Press Blue—suggests that consuming less protein could have greater health benefits and could, in some cases, extend lifespan. The authors describe how protein restriction slows aging by improving metabolism, changing how cells respond to nutrients, reducing cellular damage and preserving healthy cell function.