The Claim

In resistance-trained men, 8 weeks of resistance training leads to similar increases in extracellular water regardless of whether creatine supplementation is used, indicating that creatine does not have a unique effect on extracellular fluid expansion beyond the effects of training alone.

Source: Creatine Supplementation Does Not Influence the Ratio Between Intracellular Water and Skeletal Muscle Mass in Resistance-Trained Men.

What the research says

Supports is higher

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

Supports
38score
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 you're a guy who lifts weights, taking creatine won't make you hold more water outside your cells compared to just training — the water increase seems to come from working out, not the supplement.

See the scientific wording

In resistance-trained men, 8 weeks of resistance training increases extracellular water similarly regardless of creatine supplementation, suggesting that creatine does not uniquely influence extracellular fluid expansion beyond training effects.

What the research says

1 study

  1. Study: Creatine Supplementation Does Not Influence the Ratio Between Intracellular Water and Skeletal Muscle Mass in Resistance-Trained Men.

    The study shows that both creatine and placebo groups had the same increase in extracellular water after training, so creatine didn’t add extra fluid gain beyond what exercise alone caused.

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.