The Claim

HMB supplementation has no significant effect on fat mass in athletes, with a mean difference of −0.33 ± 0.23 kg (95% CI: −0.96 to 0.31 kg; p = 0.22) across five studies involving 128 participants.

Source: Does HMB Enhance Body Composition in Athletes? A Systematic Review and Meta-analysis

What the research says

Supports is higher

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

Supports
39score
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.

Quantitative
1 study reviewed
In plain English

Taking HMB supplements does not lead to a meaningful change in fat mass among athletes, based on data from multiple studies combining 128 participants.

See the scientific wording

HMB supplementation has no significant effect on fat mass in athletes, with a mean difference of −0.33 ± 0.23 kg (95% CI: −0.96 to 0.31 kg; p = 0.22) across five studies involving 128 participants.

What the research says

1 study
  1. Study: Does HMB Enhance Body Composition in Athletes? A Systematic Review and Meta-analysis

    This study looked at whether HMB supplements help athletes lose fat and found no real change — the tiny amount of fat lost wasn’t enough to be meaningful. So, HMB doesn’t seem to help with fat loss in athletes.

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.