The Claim

In untrained older men aged 60–75 years with baseline protein intake ≥1.0 g/kg/day, consuming 40 g of protein either immediately after resistance exercise or 30 minutes before sleep does not enhance gains in quadriceps muscle thickness over 12 weeks of twice-weekly resistance training, compared to resistance training alone. Muscle thickness increased by approximately 0.16–0.18 cm across all groups, with no significant differences between timing strategies or versus no supplementation, indicating that protein timing is not a critical factor for hypertrophy when daily protein needs are met.

Source: Neither pre-sleep nor post-exercise protein consumption influences resistance exercise training adaptations in older adults

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
79score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

For older guys in their 60s and 70s who already eat enough protein, taking 40 grams of protein right after working out or just before bed doesn’t help build bigger leg muscles any more than just working out — the muscle gains are about the same no matter when they take it.

See the scientific wording

In untrained older men aged 60–75 years with baseline protein intake ≥1.0 g/kg/day, consuming 40 g of protein either immediately after resistance exercise or 30 minutes before sleep does not enhance gains in quadriceps muscle thickness over 12 weeks of twice-weekly resistance training, compared to resistance training alone. Muscle thickness increased by approximately 0.16–0.18 cm across all groups, with no significant differences between timing strategies or versus no supplementation, indicating that protein timing is not a critical factor for hypertrophy when daily protein needs are met.

What the research says

1 study

  1. Study: Neither pre-sleep nor post-exercise protein consumption influences resistance exercise training adaptations in older adults

    The study found that taking protein right after workouts or before bed didn’t help older men gain more muscle compared to just doing the workouts, as long as they were already eating enough protein overall.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.