Could Eating Less Protein Help You Live Longer? A New Review Suggests Yes

A comprehensive review of more than 350 studies suggests that reducing overall protein intake or limiting certain amino acids may improve metabolic health, reduce inflammation, and slow aging processes in animals, with early human trials showing weight loss and improved insulin sensitivity. The evidence points to a potential need for personalized protein guidelines, since older adults, pregnant individuals, and those recovering from illness may require more protein, while many sedentary adults could benefit from lower intake, especially when paired with appropriate exercise.