Long Life and Health
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Aging Supplements

FDA Strips Popular Anti-Aging NMN Supplements Away From Americans

Regular readers of these pages are probably well familiar with the tremendous amount of evidence for the antiaging properties of NMN.

Studies have found a number of ways that NMN supplementation can improve longevity, such as:

  • NMN boosts the energy supply in aging cells.
  • NMN helps in fighting metabolic diseases.
  • NMN enhances red blood cell production and improves blood flow.

How NMN Supplement Proves Beneficial? - Fit for happy life

One of the greatest values of NMN is that you can get all of these benefits in a relatively inexpensive over-the-counter nutritional supplement.

That was until now.

The regular availability of NMN is likely to all change, because, now that some of the benefits of β-NMN (beta-nicotinamide mononucleotide) are being investigated by Pharma-backed research, the FDA has declared it as a drug and that it no longer meets the requirements of being sold as a “nutritional supplement.”

Many of the companies that sell NMN — were recently advised that it is now excluded from the definition of a dietary supplement.

This batch of letters sent to the several labs that make and distribute NMN stands in direct contrast to the position previously taken by the agency when it reviewed NMN ingredients to establish the safety of NMN being sold as supplements.

In publicized responses to five new dietary ingredient notifications (NDINs) filed with the FDA between the summer of 2020 and the spring of 2022, FDA did not conclude then that NMN was “precluded from use in dietary supplements due to it being investigated as a drug.” 

Last week, however, an FDA official advised SyncoZymes Co. Ltd., Inner Mongolia Kingdomway Pharmaceutical Ltd., and others that β-NMN is excluded from the definition of a dietary supplement.

“Based on new information that came to light when we were reviewing another notification, FDA initiated a review of past notification responses for NMN and concluded that NMN is excluded from the definition of a dietary supplement,” an FDA official, R. Philip Yeager, Ph.D., wrote in a Nov. 4 letter.

“Further, FDA has carefully considered the information available to us and has determined that NMN is an article for which substantial clinical investigations have been instituted and for which the existence of such investigations has been made public,” Yeager added.

“Accordingly, we conclude that NMN is excluded from the dietary supplement definition under 21 USC § 321(ff)(3)(B)(ii) and may not be marketed as or in a dietary supplement.”

For now, enforcement of the sale ban has not gone into effect, and it may take some time before NMN is no longer available as a supplement.

It is up to the agency, when, if, and for how long they would enact such enforcement.

A delay could keep NMN available as a dietary supplement in the US for some time, but a lack of enforcement of its new definition by the FDA is likely to face resistance from Metro International Biotech, the clinical-stage pharma company researching NMN as a drug.

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