“Nicotinamide Adenine Dinucleotide?”Here!NAD+
Hasn’t appeared in a scanned product yet.
As a supplement
Talk to your doctor or pharmacist.
Roll Call does not check drug interactions or assess personal safety.
A coenzyme found in every cell of the body, central to energy metabolism and cellular repair processes; supplements typically supply it directly or as related precursor compounds.
Why it’s used
Taken by some for general energy, cellular aging, or cognitive support, based on NAD+'s central biological role.
What the evidence says
NAD+ itself is not well absorbed when taken orally, and direct clinical trials of oral NAD+ supplementation are scarce. Most of the research attention in this area has focused on precursor compounds rather than NAD+ itself, so there is not enough dedicated evidence on oral NAD+ to say whether supplementation meaningfully raises cellular NAD+ levels or produces any downstream effect.
Where we looked
There was no paper to cite here, so this is the search instead — run it yourself and see what we saw.
- PubMed: 2997 records · searched September 2026
"Nicotinamide Adenine Dinucleotide"[Title/Abstract] AND (review[pt] OR "safety assessment"[Title/Abstract] OR "risk assessment"[Title/Abstract] OR toxicology[Title/Abstract] OR toxicity[Title/Abstract] OR characterization[Title/Abstract] OR characterisation[Title/Abstract]) - PubMed: 54 records · searched September 2026
"Nicotinamide Adenine Dinucleotide"[Title/Abstract] AND ("dietary supplements"[MeSH] OR supplementation[Title/Abstract] OR supplement[Title/Abstract] OR supplements[Title/Abstract] OR "oral administration"[Title/Abstract]) AND (randomized controlled trial[pt] OR clinical trial[pt] OR meta-analysis[pt] OR systematic review[pt]) AND humans[MeSH] - PubMed: 17106 records · searched September 2026
"Nicotinamide Adenine Dinucleotide"[Title/Abstract]
This says what this database holds under these terms. It is not a finding that no research exists.
Context
Where NAD+ status has been studied, it has typically involved measuring precursor compounds or blood markers rather than dosing NAD+ directly, limiting what can be said about oral NAD+ supplements specifically.
Rumors
NAD+ supplements boost cellular energy.
We haven’t found evidence strong enough to support this or rule it out.
What was measured is not yet noted.
Who’s saying this
- essence.com — we couldn’t open the site to see who runs it
NAD+ supplements improve brain function.
We haven’t found evidence strong enough to support this or rule it out.
What was measured is not yet noted.
Who’s saying this
- Walmart — a retailer: sells fashion, home goods and more; Walmart+ membership
How we know who this is
- “The trademarks Walmart and the Walmart Spark design are registered with the US Patent and Trademark Office.” (their page)
- “Annual members can save $380 per year!” (their page)
- Walmart — a retailer: sells fashion, home goods and more; Walmart+ membership
NAD+ supplements support healthy aging and longevity (slow aging).
We haven’t found evidence strong enough to support this or rule it out.
What was measured is not yet noted.
Who’s saying this
- Midi — a professional body or practice: virtual women's health clinic (menopause care, prescriptions) that also sells its own products
How we know who this is
- “Midi is a specialized virtual care platform dedicated to modernizing women’s healthcare.” (their page)
- “Midi is the nation’s leading virtual healthcare clinic for women.” (their page)
- Midi — a professional body or practice: virtual women's health clinic (menopause care, prescriptions) that also sells its own products
NAD+ supplements protect against DNA damage / support DNA repair.
We haven’t found evidence strong enough to support this or rule it out.
What was measured is not yet noted.
Who’s saying this
- Midi — a professional body or practice: virtual women's health clinic (menopause care, prescriptions) that also sells its own products
How we know who this is
- “Midi is a specialized virtual care platform dedicated to modernizing women’s healthcare.” (their page)
- “Midi is the nation’s leading virtual healthcare clinic for women.” (their page)
- Midi — a professional body or practice: virtual women's health clinic (menopause care, prescriptions) that also sells its own products
NAD+ supplements may promote cancer growth and spread.
We haven’t found evidence strong enough to support this or rule it out.
What was measured is not yet noted.
Who’s saying this
- NutritionFacts.org — an advocacy group: promotes whole food, plant-based diet; nonprofit
How we know who this is
- “NutritionFacts.org is a science-based nonprofit charity committed to bringing the medical literature to you, breaking down the latest in evidence-based nutrition research, and presenting the results in ways that are easy to understand.” (their page)
- “We also disseminate fact-based information through social media on the benefits of a whole food, plant-based diet for wellness, disease prevention, healthy weight management, and longevity.” (their page)
- NutritionFacts.org — an advocacy group: promotes whole food, plant-based diet; nonprofit