What is Resveratrol?

Resveratrol is a substance found in the skin of grapes and other red fruits. It’s also found in peanuts, mulberries, and some other plants. Researchers believe that resveratrol may be one of the reasons that people who drink red wine have a lower risk of heart disease.

In recent years, resveratrol has become popular as a supplement. People take it for many different purposes, including heart health, cancer prevention, and extending life. Some people even use it to help with weight loss.

How Does Resveratrol Work?

There is still much researchers don’t know about how resveratrol works in the body. They do know that it seems to have a positive effect on the lining of blood vessels. It also may help reduce inflammation and prevent damage to cells.

Some studies have shown that resveratrol can activate a protein called SIRT1. This protein is thought to play a role in longevity. Resveratrol may also help protect the body against obesity and the effects of a high-fat diet.

Does Resveratrol Have Any Side Effects?

So far, there have been few reported side effects of taking resveratrol supplements. Some people have reported mild stomach upset, headache, and diarrhea. There is also some concern that long-term use of resveratrol could lead to liver problems.

If you’re considering taking resveratrol, talk to your doctor first. He or she can help you weigh the potential risks and benefits.

What the Research Says

Some studies have found that resveratrol may offer health benefits. However, much of the research has been done in animals, not humans. More research is needed to see if resveratrol offers the same benefits in people.

One study found that resveratrol supplements improved blood sugar control in people with type 2 diabetes. The study also found that the supplements had positive effects on cholesterol and inflammation levels.

Another study looked at the effects of resveratrol in obese people who were not diabetic. The study found that resveratrol helped reduce weight gain and fat accumulation. It also improved insulin sensitivity and blood sugar control.

Dosage and Preparation

Resveratrol is available in supplements. It can also be found in powder or liquid form. You can also get resveratrol by eating grapes and other red fruits.

There is no standard dose of resveratrol. The amount that’s right for you will depend on factors like your age, weight, and health condition. Talk to your doctor about the best dosage for you.


The pharmacokinetics of resveratrol are not well understood. It’s thought that resveratrol is poorly absorbed when taken by mouth. When it is absorbed, it’s quickly metabolized and eliminated from the body. This makes it difficult to study the effects of resveratrol in humans.

Possible Interactions

Resveratrol may interact with certain medications. If you take any other medications, talk to your doctor before taking resveratrol. He or she can help you decide if the supplement is right for you.

There is some concern that resveratrol could make bleeding disorders worse. If you have a bleeding disorder, talk to your doctor before taking this supplement.

Resveratrol may also interact with blood sugar-lowering medications. If you take medication for diabetes, talk to your doctor before taking resveratrol. He or she can help you manage your blood sugar levels.

Alternatives to Resveratrol

There are many other supplements that are thought to offer health benefits. Some of these include green tea, omega-3 fatty acids, and fiber. Talk to your doctor about which supplements may be right for you.


There is no known toxicity associated with resveratrol. However, very little research has been done on its safety. If you have any concerns, talk to your doctor before taking this supplement.