Resveratrol in diet and supplementation – what is worth knowing?

Resveratrol is a natural plant compound belonging to the group of polyphenols, which has been in the spotlight of scientists for years. Research indicates that it may participate in protecting cells from oxidative stress and influence processes related to the aging of the body. Resveratrol is not considered a medicine, but rather a component of diet or dietary supplements, the use of which should be based on current scientific evidence and specialists’ recommendations. Check what research says, how to compare preparations, and when to exercise caution.

What is resveratrol?

Resveratrol is a natural plant compound belonging to the group of polyphenols. Plants produce it as an element of defense mechanisms triggered, among other things, in response to damage, infection, or other unfavorable conditions.

Dietary sources of resveratrol include:

• skins of dark grapes;

• blueberries;

• cranberries;

• peanuts;

• some varieties of other berries.

Plants produce resveratrol as an element of defense mechanisms. In the human body, it can influence pathways related to oxidative stress and inflammation, however, the significance of these mechanisms for health is still a subject of scientific research. The health-promoting properties of resveratrol have made it a common ingredient in dietary supplements.

Properties of resveratrol

The results of research on resveratrol are promising, but they do not allow for formulating unequivocal clinical recommendations for the entire population. Therefore, the presence of resveratrol in a product does not automatically mean that the supplement prevents diseases, slows aging, or provides protection against oxidative stress. 

Effect on the cardiovascular system

Some studies suggest that resveratrol may beneficially affect the circulatory system, especially the function of vascular endothelium and selected markers of inflammation [2,3]. Moreover, it has been shown that this compound affects blood clotting, which means that its use by people taking anticoagulants requires great caution. However, its supplementation has not been shown to reduce the risk of cardiovascular incidents [2,3].

Effect on glucose metabolism

According to some meta-analyses, resveratrol may improve some parameters of carbohydrate metabolism in people with type 2 diabetes [4,5]. It turns out that it can contribute to lowering blood glucose levels and also reduces the phenomenon of insulin resistance. Resveratrol additionally exhibits antioxidant activity, which allows for reducing the risk of vascular incidents in diabetics.

Does resveratrol slow down aging? 

Resveratrol is being studied for its influence on cell aging processes, among other things, through the activation of sirtuins. However, it has not yet been confirmed that supplementation prolongs life or prevents age-related diseases in humans.

It is worth emphasizing, however, that resveratrol exhibits strong antioxidant properties, which means it has great potential to neutralize free radicals that accelerate the body’s aging processes [1,8].

Anti-inflammatory properties of resveratrol

Inflammation is a natural element of the body’s immune response, but its chronic persistence can increase the risk of developing many diseases, including cardiovascular and metabolic disorders. For this reason, scientists have been analyzing plant compounds that can influence the regulation of inflammatory processes for many years.

Experimental studies indicate that resveratrol can modulate the activity of pathways responsible for inflammatory response, among other things, by affecting the transcription factor NF-κB and limiting the production of selected pro-inflammatory cytokines, such as TNF-α and IL-6. Some clinical studies have also shown a slight improvement in selected markers of inflammation in people with obesity or metabolic disorders, but the results are not entirely consistent and require further clarification.

Anticancer properties of resveratrol

The potential influence of resveratrol on processes related to cancer development is one of the most intensively researched directions in modern science. The results to date come mainly from laboratory studies and studies on animal models.

Under experimental conditions, it has been shown that its action can influence mechanisms regulating cancer cell growth, the process of apoptosis (programmed cell death), angiogenesis, and metastasis formation. However, these effects have not yet been unequivocally confirmed in clinical trials involving humans. Therefore, the current state of knowledge does not allow resveratrol to be considered a means of preventing or treating cancer.

Resveratrol in diet and supplementation

Resveratrol can be supplied through plant products, but its content in food is small and variable. For this reason, some people reach for dietary supplements. Supplementation may be considered after consultation with a doctor or pharmacist, especially for people taking medications.

When to exercise caution?

Resveratrol can affect the activity of liver enzymes and enhance the action of some anticoagulant drugs. For this reason, it is advisable to discuss supplementation with a doctor or pharmacist before starting it.

People seeking body support during periods of increased tension should remember that the choice of preparation should be adapted to individual needs. Example products can be found in the category supplements for stress. Particular attention should be paid to BestNAD+, which contains trans-resveratrol, supporting the circulatory system.

Summary

Resveratrol occurs naturally in plant products, and supplements provide it in a much more concentrated form. However, research does not confirm that supplementation cures diseases, prolongs life, or replaces a healthy diet. Before choosing a product, check the amount of trans-resveratrol, extract standardization, full composition, and possible interactions with medications you are taking.

FAQ – frequently asked questions

What are the side effects of resveratrol?

The most commonly reported side effects include gastrointestinal complaints such as nausea, diarrhea, or abdominal pain. The risk of their occurrence increases with higher doses of the supplement.

What not to combine resveratrol with?

Particular caution should be exercised when co-administering anticoagulant and antiplatelet drugs, as resveratrol may affect the blood clotting process. If you are taking medication regularly, it is advisable to consult your doctor about supplementation.

How long can resveratrol be taken?

The maximum safe duration of use has not been established. Most clinical trials lasted from several weeks to several months. Long-term supplementation should be discussed with a specialist, especially in the case of chronic diseases or regular medication intake. 

What does resveratrol help with?

Research suggests that resveratrol may influence processes related to oxidative stress, blood vessel function, and glucose metabolism. However, it has not yet been confirmed to prevent or treat specific diseases, and therefore it should not replace therapy recommended by a doctor.