After 55, sarcopenia reduces muscle 1-2%/year.
Daily 1.2g protein/kg body weight prevents this, sustaining stair-climbing/shopping autonomy.
Prioritize: Eggs (6g/unit), beans (7g/100g), grilled chicken, whey shakes post-exercise.
25-30g/meal: Coffee + Cottage cheese, lean meat lunch, Greek yogurt snack.
Autonomy Tip: 20min daily walk + protein shake. Monitor stair-climbing strength.