The Claim

In healthy young men undergoing a 12-week progressive resistance training program, consuming a supplement containing 27.5 grams of protein, 15 grams of carbohydrate, and 0.1 grams of fat before sleep likely enhances gains in muscle strength and muscle mass compared to a noncaloric placebo, as indicated by greater increases in 1-repetition maximum strength, quadriceps cross-sectional area, and type II muscle fiber size.

Source: Protein Ingestion before Sleep Increases Muscle Mass and Strength Gains during Prolonged Resistance-Type Exercise Training in Healthy Young Men.

What the research says

Supports is higher

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

Supports
61score
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

If young, healthy guys drink a protein shake with some carbs before bed while lifting weights for 12 weeks, they’ll probably gain more muscle and get stronger than if they just drank a fake shake with no calories.

See the scientific wording

Consuming 27.5 grams of protein, 15 grams of carbohydrate, and 0.1 grams of fat before sleep likely enhances gains in muscle strength and muscle mass in healthy young men undergoing a 12-week progressive resistance training program, compared to a noncaloric placebo, as evidenced by greater increases in 1-repetition maximum strength, quadriceps cross-sectional area, and type II muscle fiber size.

What the research says

1 study
  1. Study: Protein Ingestion before Sleep Increases Muscle Mass and Strength Gains during Prolonged Resistance-Type Exercise Training in Healthy Young Men.

    The study gave young men a protein drink before bed and found they got stronger and built more muscle than those who had a fake drink, which matches exactly what the claim says.

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

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

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