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NAD Boosters (NAD+/NADH, Nicotinamide Riboside, and NMN)

NMN Off Walmart, iHerb

March 26, 2024
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Walmart and iHerb have joined Amazon in no longer selling NMN (nicotinamide mononucleotide) supplements. To find out why, see the NAD Boosters Review, which includes our tests of NMN, NADH, and nicotinamide riboside products and our Top Picks among them.

Supplement for Cognition?

February 13, 2024
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Does taking nicotinamide riboside improve cognitive or physical function among older people with mild cognitive impairment? See what a recent study showed in the Nicotinamide riboside section of our NAD Booster Supplements Review. Also see our Top Pick for nicotinamide riboside.

Also see our article about supplements for memory and cognition.

Nicotinamide Riboside Side Effects

December 12, 2023
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What are the common side effects of nicotinamide riboside (found in Tru Niagen), and is it safe? Find out what a recent study showed in the Concerns and Cautions section of our NAD Booster Supplements Review. Also see our Top Picks for nicotinamide riboside and other NAD boosters.

Nicotinamide Riboside for Alzheimer's?

February 28, 2023
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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
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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
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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
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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
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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
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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
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Fourteen of the 22 most popular NMN supplements (which can boost NAD+ levels) on Amazon were recently discovered to contain no detectable NMN. See the results in the Update to our NAD Boosters Review, which includes CL's tests of additional NMN, NADH, and nicotinamide riboside supplements, as well as our Top Picks.