The Claim

Resveratrol supplementation at doses of 100–500 mg/day for 8–24 weeks has no significant effect on metabolic, vascular, or functional outcomes in older adults with type 2 diabetes or peripheral artery disease compared to placebo.

Source: Effects and safety of resveratrol supplementation in older adults: A comprehensive systematic review

What the research says

Supports is higher

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

Supports
47score
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.

Cause and effect
1 study reviewed
In plain English

Taking resveratrol supplements for 8 to 24 weeks does not improve metabolic health, blood vessel function, or physical performance in older adults with type 2 diabetes or peripheral artery disease compared to taking a placebo.

See the scientific wording

In older adults with type 2 diabetes or peripheral artery disease, resveratrol supplementation (100–500 mg/day for 8–24 weeks) shows no significant benefit over placebo for metabolic, vascular, or functional outcomes, indicating it is not an effective intervention for these conditions.

Why this might work

In older people with diabetes or poor blood flow, resveratrol does not turn on the cellular signals that improve sugar use or blood vessel function, so nothing changes in their metabolism or circulation.

Suggested mechanismbased on 1 study

What the research says

1 study
  1. Study: Effects and safety of resveratrol supplementation in older adults: A comprehensive systematic review

    For older adults with diabetes or poor leg circulation, taking resveratrol pills didn’t help them control blood sugar, walk better, or improve other health measures any more than taking a sugar pill. So, it doesn’t work for these conditions.

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.