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Clinical Updates
NAD Boosters (NAD+/NADH, Nicotinamide Riboside, and NMN)
Counterfeit Supplements
March 03, 2025
Twenty-nine out of 39 supplements containing the "NAD booster" nicotinamide riboside were recently found to contain much less ingredient than claimed, with many containing under 1%. Counterfeit versions of Tru Niagen were also identified. Details are in our NAD Booster Supplements Review, which includes our Top Picks among products.
Also see our article about avoiding counterfeit supplements online.
Nicotinamide Riboside for Cognition?
January 20, 2025
Did nicotinamide riboside improve memory, attention or cognition among older people with cognitive decline in a recent study? Find out in the Nicotinamide riboside section of our NAD Booster Supplements Review, which includes our Top Picks for nicotinamide riboside.
Is NMN Still Sold?
January 02, 2025
Nicotinamide Riboside for Peripheral Artery Disease?
June 18, 2024
NMN and Kidney Injury
April 19, 2024
NMN Off Walmart, iHerb
March 26, 2024
Supplement for Cognition?
February 13, 2024
Also see our article about supplements for memory and cognition.
Nicotinamide Riboside Side Effects
December 12, 2023
Nicotinamide Riboside for Alzheimer's?
February 28, 2023
A preliminary clinical study suggested that taking nicotinamide riboside reduced blood markers of Alzheimer’s disease. For details, see the What It Does section of our NAD Boosters Review, which includes our Top Pick among nicotinamide riboside supplements.
Also see: Do any supplements, foods or lifestyle modifications help with brain function, like memory and cognition?
Niacin & Cancer?
February 03, 2023
The NAD booster, nicotinamide riboside, might promote growth of existing cancers. Is there similar risk with niacin and niacinamide (nicotinamide)? Find out what evidence suggests in the Concerns and Cautions section of our NAD Booster Supplements Review.
Also, see our Top Pick among niacin supplements in our B Vitamin Supplements Review.
NMN Can No Longer Be Sold as a Supplement
November 15, 2022
The FDA recently took the position that NMN, an NAD booster, cannot be sold as a dietary supplement. For details, see the NAD Boosters Review.
NAD Booster & Cancer Risk
November 15, 2022
The NAD booster, nicotinamide riboside, increased the spread of certain aggressive cancers in a recent laboratory study, adding to existing concerns. Get the details in the Concerns and Cautions section of our NAD Booster Supplements Review.
Also, see our CL Answer about vitamins and cancer risk.
New Nicotinamide Riboside Top Pick
May 13, 2022
We recently tested and Approved a nicotinamide riboside supplement that provides the most-studied form of nicotinamide riboside and is our new Top Pick for nicotinamide riboside in our NAD Booster Review.
NMN for Better Sleep?
February 14, 2022
Can nicotinamide mononucleotide (NMN) improve sleep and reduce daytime drowsiness? See what a new study found in the What It Does section of our NAD Booster Supplements Review. Also see our Top Picks among products, including NMN, NAD+/NADH, and nicotinamide riboside.
See our answer to the question: Which supplements can help me sleep and which cause insomnia?
64% of NMN Supplements Fail Tests
December 09, 2021
