The Claim

Six weeks of high-dose creatine monohydrate supplementation (10 g/day) in healthy adults results in a small but statistically significant reduction in HbA1c by 0.2 percentage points.

Source: Effects of six weeks of high-dose creatine monohydrate supplementation with or without guanidinoacetic acid on homocysteine and markers of health

What the research says

Supports is higher

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

Supports
76score
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 10 grams of creatine monohydrate daily for six weeks lowers HbA1c levels by 0.2 percentage points in healthy adults.

See the scientific wording

Six weeks of high-dose creatine monohydrate supplementation (10 g/day) in healthy adults leads to a small but statistically significant reduction in HbA1c by 0.2 percentage points, suggesting a potential modulatory effect on long-term glucose metabolism, though the clinical significance remains uncertain due to the magnitude of change and absence of glycemic control outcomes.

Why this might work

Creatine builds up in muscle cells and helps make more ATP quickly, so the body uses less glucose to produce energy, which lowers the average blood sugar level over time.

Suggested mechanismbased on 1 study

What the research says

1 study
  1. Study: Effects of six weeks of high-dose creatine monohydrate supplementation with or without guanidinoacetic acid on homocysteine and markers of health

    Taking 10 grams of creatine daily for six weeks slightly lowered a blood marker of average blood sugar in healthy people, just as the claim says — but the drop was so tiny it probably doesn’t mean much for health.

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.