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Resveratrol

What does the research say about Resveratrol?

10 health outcomes synthesised

Resveratrol, a polyphenol found in grapes and red wine, has been researched for 10 health outcomes, including cardiovascular and metabolic markers. The strongest evidence is for reducing waist circumference, with 3 meta-analyses reporting small beneficial effects in individuals with overweight, obesity, or type 2 diabetes. Doses in studies ranged from 150 to 800 mg per day, but consistent dose-response data are lacking, and many findings are considered preliminary due to small study numbers.

Strongest evidence: Moderate evidence supports resveratrol for reducing waist circumference (3 meta-analyses, small effect) and systolic blood pressure (2 of 3 studies beneficial). The only outcomes with moderate evidence both come from small study bases. For increasing total antioxidant capacity, 3 studies found moderate effects at doses of 400–800 mg/day in clinical populations (e.g., postmenopausal women, PCOS).

Mixed or weaker evidence: Low-strength evidence exists for reducing cholesterol (2 of 5 studies beneficial, 3 neutral), triglycerides (2 of 4 beneficial, 2 neutral), inflammation (2 of 3 beneficial, but highest-quality RCT null), body weight (2 of 3 beneficial, but null in general overweight populations), and LDL (2 of 3 beneficial, but null in a general hyperlipidemic meta-analysis). Insulin sensitivity had only 1 of 3 studies showing benefit.

Effective dose patterns: No consistent dose range emerged across most outcomes. However, for antioxidant capacity and antioxidant enzyme levels, the most-studied dose was 400–800 mg/day, typically over 60–84 days. Liposomal resveratrol was used in some studies, which may affect bioavailability.

Population insights: Beneficial effects clustered in clinical populations—people with type 2 diabetes, obesity, metabolic dysfunction-associated steatotic liver disease (MASLD), polycystic ovary syndrome (PCOS), or head and neck cancer. Healthy adults were rarely studied, limiting generalizability.

Notable caveats: Every synthesis noted a small evidence base (3–5 studies), and conclusions are preliminary. Publication bias is a concern, as positive results are more likely to be published. Doses and forms were often inconsistently reported, making specific recommendations impossible. One blood pressure study used resveratrol combined with beetroot extract, potentially confounding results.

Frequently asked

  • What is resveratrol good for according to research?
    Research shows resveratrol has beneficial effects on waist circumference (3 meta-analyses, small effect) and systolic blood pressure (2 of 3 studies beneficial). Moderate evidence also supports an increase in total serum antioxidant capacity, with 3 studies showing moderate effects. However, most outcomes have low-strength evidence due to small study numbers and mixed results.
  • What dose of resveratrol is typically used in studies?
    The most commonly reported doses in clinical trials are 400–800 mg per day, typically for 60–84 days. This dose range was most consistent for outcomes like antioxidant capacity and antioxidant enzyme levels. However, many studies did not consistently report dose or form, and no standard effective dose has been established.
  • Who benefits most from resveratrol according to research?
    Studies primarily enrolled clinical populations: people with type 2 diabetes, obesity, metabolic dysfunction-associated steatotic liver disease (MASLD), polycystic ovary syndrome (PCOS), or head and neck cancer. For example, weight reduction was seen in individuals with MASLD or type 2 diabetes, but not in general overweight adults. Healthy populations were rarely studied.
  • Are there caveats or limitations in the research on resveratrol?
    Yes, all 10 outcomes are based on small numbers of studies (3–5 each), so findings are considered preliminary. Publication bias is a concern—null results are less likely to be published. Doses and forms (e.g., liposomal vs. standard) varied widely, and many studies did not report them consistently, limiting dose-specific conclusions.
  • Does resveratrol help with cholesterol and triglycerides?
    Evidence is mixed and low-strength. For cholesterol, 2 of 5 studies found a small benefit, while 3 found no effect. For triglycerides, 2 of 4 studies found benefit (small to moderate), but 2 found no significant effect. The largest review on triglycerides included 928 postmenopausal women and found no effect, while a meta-analysis in hyperlipidemia showed benefit.
  • Can resveratrol reduce inflammation?
    The evidence is inconsistent. Across 3 studies, 2 reported small-to-moderate reductions in inflammation markers, but the highest-quality randomized controlled trial found no significant benefit. The studies were in overweight and obese adults, with only one study (150 mg/day for 28 days) providing dose details.

Safety profile

5 studies reporting safety data

Across 5 clinical studies, no specific adverse events were quantitatively reported compared to control. Resveratrol was generally described as well tolerated, with only mild adverse events recorded in one study and mixed side effects noted in another. The evidence primarily consists of general tolerability statements without quantified risk differences.

Caveats: Limited evidence base (5 studies) with substantial heterogeneity in reported outcomes; absence of specific adverse event reports does not establish safety. Studies were likely powered for efficacy rather than safety, so rare adverse events may not be detected. Findings reflect the specific formulations and doses used in these trials, which may differ from other products.

Most-studied combinations with Resveratrol

most supplement research is combination research
Also studied with:Turmeric (5), Ginkgo (2), Thistle (2), Vitamin D (2), Vitamin E (2), green tea (2)

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