The Claim

In healthy older men, consuming 40 grams of protein before sleep increases the incorporation of dietary amino acids into myofibrillar muscle proteins during overnight recovery, suggesting improved utilization of presleep protein for muscle synthesis.

Source: Protein Ingestion before Sleep Increases Overnight Muscle Protein Synthesis Rates in Healthy Older Men: A Randomized Controlled Trial.

What the research says

Supports is higher

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

Supports

60score

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.

How it works

1 study reviewed

In plain English

If older guys eat 40 grams of protein before bed, their bodies use it better overnight to build muscle while they sleep.

See the scientific wording

Presleep ingestion of 40 grams of protein leads to greater incorporation of protein-derived amino acids into myofibrillar muscle proteins during overnight sleep in healthy older men, indicating enhanced utilization of dietary protein for muscle tissue building when consumed before bedtime.

What the research says

1 study

Study: Protein Ingestion before Sleep Increases Overnight Muscle Protein Synthesis Rates in Healthy Older Men: A Randomized Controlled Trial.
The study shows that drinking a protein shake with 40 grams of protein before bed helps older men build more muscle overnight, which is 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.