The Claim

Short-term creatine supplementation (21 g/day for 5 days) does not enhance myofibrillar or sarcoplasmic protein synthesis in the legs of young, healthy men following acute resistance exercise, despite increasing total muscle creatine content by approximately 21%, indicating that the muscle hypertrophy effects of creatine may not be mediated by acute stimulation of post-exercise muscle protein synthesis.

Source: No effect of creatine supplementation on human myofibrillar and sarcoplasmic protein synthesis after resistance exercise.

What the research says

Supports is higher

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

Supports
30score
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

Taking a lot of creatine for 5 days doesn’t seem to boost muscle repair or growth right after a workout in young, healthy guys—even though it does increase creatine levels in their muscles. So, creatine might help muscles grow in other ways, not by speeding up protein building right after exercise.

See the scientific wording

Short-term creatine supplementation (21 g/day for 5 days) does not appear to enhance myofibrillar or sarcoplasmic protein synthesis in the legs of young, healthy men following acute resistance exercise, despite increasing total muscle creatine by approximately 21%, suggesting that the hypertrophy-promoting effects of creatine may not be mediated through acute stimulation of muscle protein synthesis after exercise.

What the research says

1 study
  1. Study: No effect of creatine supplementation on human myofibrillar and sarcoplasmic protein synthesis after resistance exercise.

    The study found that taking creatine for 5 days didn’t boost muscle repair after a workout, even though it increased creatine levels in the muscle. This supports the idea that creatine helps muscles grow in other ways, not by speeding up protein building right after exercise.

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.