NR and resveratrol are two supplements getting attention for their potential roles in healthy aging and cellular health. NR helps your body produce NAD+, while resveratrol is a plant compound studied for its effects on cellular stress and longevity-related pathways.

But does combining them offer greater benefits? While the science behind this pairing is interesting, human research has yet to show that taking both works better than NR alone.

Key Takeaways:

• NR is a form of vitamin B3 that helps your body produce NAD+, which supports cellular energy and DNA repair.
• Resveratrol is a natural antioxidant studied for its potential effects on inflammation, metabolism, and cellular aging.
• Combining NR with resveratrol may support different cellular processes, but their proposed benefits have not been confirmed in large human trials.
• A 2024 clinical trial found that adding resveratrol to NR did not improve walking performance beyond NR alone.

What Are NR and Resveratrol?

Nicotinamide riboside (NR) is a form of vitamin B3 that your body converts into nicotinamide adenine dinucleotide (NAD+).

NAD+ helps cells convert nutrients into energy. It also plays a role in DNA repair, metabolism, and the activity of proteins involved in cellular health.

Researchers are interested in NR because NAD+ metabolism changes with age, and supplements may help increase NAD+ availability.

In a clinical trial involving 140 adults, daily NR doses of 100, 300, and 1,000 mg increased whole-blood NAD+ levels by 22%, 51%, and 142%, respectively, after two weeks (1).

Resveratrol, on the other hand, is a natural polyphenol found in grapes, berries, peanuts, and red wine.

It's known for its antioxidant properties and has been studied for potential effects on inflammation, metabolic health, and cellular aging.

Although both ingredients are associated with healthy aging research, they work through different biological pathways.

Why Are NR and Resveratrol Taken Together?

The idea behind combining NR and resveratrol comes down to two important players in cellular health: NAD+ and sirtuins.

NR provides the body with a building block for producing NAD+. Meanwhile, resveratrol has been studied for its potential effects on sirtuins, particularly SIRT1.

Sirtuins are proteins involved in cellular stress responses, metabolism, and DNA repair. They also depend on NAD+ to function.

This has led researchers to explore the possibility that NR could increase NAD+ availability while resveratrol influences related cellular pathways.

However, the relationship isn't that simple.

A 2025 review of 11 randomized trials found that resveratrol supplementation did not significantly improve SIRT1 gene expression, protein expression, or blood levels across the studies analyzed (2).

So, while combining NR and resveratrol makes sense from a biological perspective, there's still limited evidence that the combination produces stronger health benefits in humans.

Potential Benefits of NR and Resveratrol

Research suggests that NR and resveratrol may influence several processes involved in healthy aging. Most findings, however, come from studies of the individual ingredients rather than the combination.

1. NAD+ Production and Cellular Energy

NR has one of the clearest effects on NAD+ levels among the two ingredients.

Human studies have shown that NR supplementation can increase NAD+ in the blood. Since NAD+ plays a central role in mitochondrial energy production, researchers are investigating its potential effects on cellular function (1).

Still, higher NAD+ levels don't automatically translate into noticeable improvements in energy, physical performance, or longevity.

2. Cellular Health and Healthy Aging

Both ingredients have attracted interest for their connections to cellular aging.

NR supports NAD+ production, which helps maintain processes involved in DNA repair and cellular stress responses.

Resveratrol has shown antioxidant and anti-inflammatory activity in laboratory studies. Researchers have also investigated its effects on pathways associated with metabolism and aging.

However, a 2024 systematic review covering nearly 200 resveratrol clinical studies found insufficient evidence to recommend it as a treatment for any specific health condition (3).

Neither ingredient has been proven to extend human lifespan.

3. Metabolic and Cardiovascular Health

Resveratrol has been studied for its potential effects on blood sugar regulation, cholesterol, blood pressure, and other markers of metabolic health.

Some clinical trials have reported improvements in selected markers, but results vary depending on the participants, doses, and study duration (3).

NR is also being investigated for cardiovascular and muscle health, although its effects on clinical outcomes remain uncertain.

These findings are promising research directions, not proof that combining NR and resveratrol prevents cardiovascular or metabolic diseases.

What Does Research Say About Combining NR and Resveratrol?

One of the most relevant human studies was published in Nature Communications in 2024.

Researchers recruited 90 adults with peripheral artery disease, a condition that reduces blood flow to the legs.

Participants received one of three treatments for six months:

• 1,000 mg of NR daily
• 1,000 mg of NR plus 125 mg of resveratrol daily
• A placebo

After six months, participants taking NR alone improved their six-minute walking distance by 17.6 meters compared with the placebo group (4).

However, adding resveratrol did not provide an additional improvement in walking performance.

Interestingly, participants who took at least 75% of their assigned pills showed improvements with both NR alone and the combination. But the researchers found no clear advantage from adding resveratrol.

The study was relatively small and involved people with an existing vascular condition. Its findings cannot automatically apply to healthy adults.

More research is needed to determine if combining NR and resveratrol offers benefits for other aspects of cellular health.

NR and Resveratrol: Dosage, Side Effects, and Safety

There's currently no established optimal dose for taking NR and resveratrol together.

Human NR studies have investigated daily doses ranging from 100 to 1,000 mg and higher, depending on the research objective.

For resveratrol, clinical trials have used a wide range of doses. A systematic review found that doses up to 1,000 mg daily were generally well tolerated in the studies assessed, although long-term safety data remain limited (3).

Both supplements may cause digestive discomfort.

In the 2024 combination trial, diarrhea was reported by:

• 54.6% of participants taking NR with resveratrol
• 39.3% taking NR alone
• 27.6% taking placebo

Nausea and vomiting were also reported more frequently in the combination group (4). These figures reflect reported adverse events, not necessarily symptoms caused directly by the supplements.

Resveratrol may also interact with blood-thinning medications, including warfarin, and could increase bleeding risk (5).

If you take prescription medications, have an existing medical condition, or are considering long-term supplementation, speak with your healthcare provider first.

Should You Take NR and Resveratrol Together?

NR and resveratrol influence different biological processes, which makes their combination interesting for healthy aging research.

NR has demonstrated the ability to increase blood NAD+ levels. Resveratrol has shown potential effects on cellular stress and metabolic pathways, although its clinical benefits remain less clear.

For now, there's no strong human evidence that combining them produces better results than taking NR alone.

The decision should depend on your health goals, medical history, and understanding of the current research rather than claims about reversing aging.

Final Words

NR and resveratrol have interesting roles in cellular health, but there's still plenty to learn about their combined effects. Increasing NAD+ is measurable. Turning that change into better long-term health is a different question.

If you're exploring NAD+ support, NMN is another precursor worth learning about. Omre's NMN + Resveratrol combines 500 mg of NMN with 500 mg of micronized trans-resveratrol per daily serving, offering an alternative to NR-based combinations.

Frequently Asked Questions

Can you take NR and resveratrol together?

Yes, researchers have studied NR and resveratrol together in humans. However, there's no established optimal combination dose, and the long-term benefits and safety of taking both remain uncertain.

Does NR work better with resveratrol?

Current research hasn't shown that adding resveratrol makes NR more effective. A 2024 clinical trial found no additional improvement in walking performance when resveratrol was combined with NR.

What are the benefits of NR and resveratrol?

NR helps increase NAD+ levels, while resveratrol has been studied for antioxidant activity, metabolic health, and cellular stress responses. However, the specific health benefits of combining them remain unproven.

How much NR and resveratrol should you take?

There's no clinically established daily dose for the combination. One human trial used 1,000 mg of NR with 125 mg of resveratrol, but that doesn't make it the recommended dose for general wellness.

Is NR better than NMN when combined with resveratrol?

Both NR and NMN help the body produce NAD+. However, there's insufficient head-to-head human research to determine which works better when combined with resveratrol.

References

1. Conze D, Brenner C, Kruger CL. (2019). Safety and Metabolism of Long-term Administration of NIAGEN (Nicotinamide Riboside Chloride) in a Randomized, Double-Blind, Placebo-controlled Clinical Trial of Healthy Overweight Adults. Scientific Reports.
2. (2025). Impact of Resveratrol Supplementation on Human Sirtuin 1: A Systematic Review and Dose-Response Meta-Analysis of Randomized Controlled Trials. Journal of the Academy of Nutrition and Dietetics.
3. Brown K, et al. (2024). 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.
4. (2024). Nicotinamide Riboside for Peripheral Artery Disease: The NICE Randomized Clinical Trial. Nature Communications.
5. Memorial Sloan Kettering Cancer Center. Resveratrol: Uses, Side Effects, and Medication Interactions.