How Much Protein Does a Man Over 50 Need to Build Muscle?

Decision rule

There is no single number proven specifically for every healthy man in his fifties. A practical target is to first meet total energy needs and distribute protein-rich foods across meals. Guidance of roughly 1.0–1.2 g/kg/day is aimed mainly at adults over 65, with higher amounts often suggested for active older adults [1].
A man in his fifties prepares a protein-rich meal with salmon, beans, and vegetables.

Do not present an over-65 consensus number as a precise requirement for a 50-year-old. Training, body size, food intake, kidney function, illness, and weight-loss goals all change the useful range [1].

Start with meals

Build each meal around a recognizable protein source: eggs, dairy, fish, poultry, lean meat, soy, beans, or lentils. Spreading intake is usually easier than rescuing a low-protein day at dinner.

Use body weight carefully

Per-kilogram targets become less intuitive at high body weights and during weight loss. A dietitian can set an appropriate reference weight when a generic calculation is misleading.

Know when advice changes

Kidney disease, acute illness, poor appetite, and prescribed diets require individualized guidance. More protein is not a substitute for resistance training.

Questions that change the decision

From the Dorsi blog

Strength Training for Men Over 50: A Practical Guide

What resistance training reliably did for older men, what it did not improve in a 2025 meta-analysis, and why the research is not really about fifty-year-olds.

5 min read

Sources we drew from

  1. 1
    Evidence-based recommendations for optimal dietary protein intake in older peopleExpert consensus

    Jürgen M. Bauer et al. · 2013 · Journal of the American Medical Directors Association

    The PROT-AGE group recommends higher protein intake for many adults over 65, especially when active, while noting that illness can change the prescription.

  2. 2
    Resistance Training Prescription for Muscle Function, Hypertrophy, and Physical Performance in Healthy Adults: An Overview of ReviewsExpert consensus

    Brad S. Currier et al. · 2026 · Medicine & Science in Sports & Exercise

    The ACSM position stand prioritizes regular, individualized resistance training of all major muscle groups at least twice weekly.

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