Does a bedtime protein shake help older guys get stronger?

Original Title

Protein Supplementation after Exercise and before Sleep Does Not Further Augment Muscle Mass and Strength Gains during Resistance Exercise Training in Active Older Men.

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Summary

Older men who lifted weights three times a week got stronger and built muscle over 12 weeks, but taking a protein shake after workouts and before bed didn’t help more than a fake shake with no protein.

Proposed Mechanism

No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.

Quality Analysis
Methodology
47%
Moderate QualityOverall Score
Randomized Controlled TrialNutrition

Systematic Reviews & Meta-Analyses

Max 100

Randomized Controlled Trials

Max 90

Cohort Studies

Max 72

Case-Control Studies

Max 58

Cross-Sectional Studies

Max 44

Case Reports & Case Series

Max 30

Expert Opinion & Narrative Reviews

Max 5
StrongerWeaker
Randomized Controlled Trials
Level 1b
47

47 / 90

Evidence Score

Participants are randomly assigned to treatment or control groups, minimizing bias. Considered the gold standard for testing whether an intervention causes an effect.

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