Protein Calculator

Protein needs aren't one number — they depend on what your body is doing. The official RDA (0.8 g/kg) prevents deficiency; it wasn't designed to optimize muscle, satiety, or healthy aging, which is why sports and geriatric nutrition bodies recommend more.

The GLP-1 option exists because appetite suppression makes it genuinely hard to eat enough protein, and studies show a meaningful share of GLP-1 weight loss can be lean mass. If that's you, protein plus resistance training is the most evidence-backed protection.