Resveratrol Dosage: How Much to Take, Which Form and What the Research Shows
TPBy the TrustedPurchaseReview Editorial Team
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The short answer
There is no official recommended dose of resveratrol. Supplements contain anywhere from under 1 mg to 500 mg per capsule, and human trials have used from 10 mg to 1,000 mg a day or more. A 2024 systematic review of almost 200 trials found resveratrol generally well tolerated up to 1 gram a day. Look for the amount of trans resveratrol on the label, not just the extract weight, and check for drug interactions before you start.
Resveratrol is widely sold as a healthy aging supplement, and the doses on store shelves vary more than a hundredfold. We read the Linus Pauling Institute at Oregon State University, Memorial Sloan Kettering Cancer Center, a 2024 systematic review of resveratrol clinical trials and individual studies. This guide is general information, not medical advice.
What Is Resveratrol?
Resveratrol is a polyphenol, a plant compound found naturally in peanuts, grapes, red wine and some berries, according to the Linus Pauling Institute. It became famous after studies in yeast, worms, flies, fish and mice on high calorie diets found that it extended lifespan. Whether it does anything similar in people is still unknown.
Resveratrol Doses Used in Studies
| Dose | Where it comes from |
|---|---|
| Under 1 mg to 500 mg per capsule | Range found in supplements (Linus Pauling Institute) |
| 10 mg a day for 4 weeks | A trial in type 2 diabetes cited by the Linus Pauling Institute |
| 500 mg a day for 4 weeks | Trial in 56 people with type 2 diabetes and heart disease (Food and Function, 2019) |
| 800 mg a day for 2 months | Trial in 48 people with type 2 diabetes (Acta Diabetologica, 2018) |
| 1,000 mg a day for 45 days | A trial in type 2 diabetes cited by the Linus Pauling Institute |
| Up to 1 g a day | Generally well tolerated, according to the 2024 systematic review |
Two things stand out. First, many of the studies were done in people with type 2 diabetes, not healthy adults looking for healthy aging support. Second, the Linus Pauling Institute says it is not known whether there is a safe and effective dose for preventing chronic disease in humans, and the 2024 review found no consensus dose for any condition.
Trans Resveratrol and Japanese Knotweed
Resveratrol exists in two forms, trans and cis. The Linus Pauling Institute notes that human absorption studies have used trans resveratrol, which is why most labels highlight it. Most resveratrol supplements sold in the U.S. are made from the root of Polygonum cuspidatum, also called Japanese knotweed or Hu Zhang. Red wine and grape extracts are also sold.
Knotweed extracts are often standardized to a percentage of trans resveratrol, for example 50%. That percentage matters: 250 mg of a 50% extract gives 125 mg of trans resveratrol. A good label shows the trans resveratrol amount directly, so you do not have to do the math.
How Well Is Resveratrol Absorbed?
According to the Linus Pauling Institute, resveratrol is absorbed well, but its bioavailability is relatively low because the body metabolizes and eliminates it quickly. Most of what circulates in the blood is in the form of sulfate and glucuronide conjugates rather than resveratrol itself.
What the Research Shows
| Source | Finding |
|---|---|
| Systematic review, International Journal of Molecular Sciences, 2024 | Almost 200 studies across at least 24 conditions in 20 years. Resveratrol consistently reduced inflammatory markers and improved aspects of metabolism, but there is “no conclusive clinical evidence” yet to recommend it in any healthcare setting |
| Linus Pauling Institute | Extended lifespan in several animal species, but no human data link resveratrol to a longer life |
| Memorial Sloan Kettering Cancer Center | A meta analysis found no significant effect on memory, another found no benefit on cardiovascular risk factors, and a Cochrane review found insufficient evidence for diabetes |
The fair summary: resveratrol has been tested in almost 200 human trials, it is well tolerated, and it shows promising effects on some markers. It has not been proven to slow aging or prevent disease in people. If you take it, think of it as one small part of a healthy routine.
Safety and Drug Interactions
- Stomach effects at high doses. The Linus Pauling Institute reports nausea, abdominal pain, gas and diarrhea mainly at doses above 1,000 mg a day. A single 5,000 mg dose in 10 people caused no serious side effects.
- Blood thinners. Resveratrol may increase the risk of bruising and bleeding with anticoagulant and antiplatelet drugs such as warfarin, heparin and clopidogrel.
- Other medicines. It can inhibit CYP3A4, a liver enzyme that processes drugs such as some statins and immunosuppressants, and it affects other liver enzymes too, according to Memorial Sloan Kettering.
- Estrogen sensitive cancers. The Linus Pauling Institute advises women with a history of estrogen sensitive cancers to avoid resveratrol supplements.
- Pregnancy and breastfeeding. Safety has not been established.
Products We Reviewed
| Product | Resveratrol per serving | Notes |
|---|---|---|
| SelfPlus AGE+ | 125 mg trans resveratrol (250 mg knotweed root extract at 50%), 1 capsule | Single ingredient, dose printed, no subscription. Our score: 7/10 |
| FIMAVYN | 40 mg from knotweed root extract, 2 capsules | A metabolism formula with berberine and green tea; resveratrol is one of ten ingredients |
| Advanced Mitochondrial Formula | 25 mg trans resveratrol (Polygonum cuspidatum extract), 2 capsules | An energy formula with CoQ10 and niacinamide; resveratrol is one of 11 ingredients. Our score: 6/10 |
If resveratrol itself is what you want, a single ingredient product makes it easier to know your dose. We will add more products as we review them.
Label Checklist
- Trans resveratrol in mg. Not just the extract weight. If only a percentage is shown, multiply.
- Source. Japanese knotweed (Polygonum cuspidatum) is the most common.
- Single ingredient or blend. In a proprietary blend, you may not know how much resveratrol you get.
- Price per 100 mg. Compare products on the same basis.
- Claims. Be wary of labels or ads that promise to “reverse aging”. That goes beyond what the research shows.
FAQ
How much resveratrol should I take per day?
What is the difference between resveratrol and trans resveratrol?
Where does the resveratrol in supplements come from?
Does resveratrol slow aging?
Is resveratrol safe?
Can I take resveratrol with a statin or blood thinner?
⭐ Our pick
If you decide to try resveratrol, this is the single ingredient product we reviewed.
SelfPlus AGE+ 7/10
125 mg of trans resveratrol from Japanese knotweed in one capsule a day, no subscription and a 60 day guarantee.
Sources
- Linus Pauling Institute, Oregon State University: Resveratrol.
- Memorial Sloan Kettering Cancer Center, About Herbs: Resveratrol.
- Resveratrol for the Management of Human Health: How Far Have We Come? A Systematic Review of Resveratrol Clinical Trials to Highlight Gaps and Opportunities. International Journal of Molecular Sciences, 2024.
- Seyyedebrahimi S, et al. The effects of resveratrol on markers of oxidative stress in patients with type 2 diabetes. Acta Diabetologica, 2018.
- Hoseini A, et al. The effects of resveratrol on metabolic status in patients with type 2 diabetes mellitus and coronary heart disease. Food and Function, 2019.
About the editorial team
Written by the TrustedPurchaseReview editorial team. We read official labels and sales pages and check them against published research and government sources. We do not buy or test the products ourselves. We earn affiliate commissions on some links, and ratings are not for sale.
Questions or corrections? Contact us.
This guide is informational and not medical advice. Talk to your doctor before starting resveratrol, especially if you take medication.