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Mary Claire Haver, MD@drmaryclaireTikTok

Rating my deepfakes. This one stole my face and my voice to sell you an NAD+ supplement …more

original sound — @drmaryclaire

what it claims

You should not buy NAD+ supplements in the hope of relieving menopause symptoms (hot flashes, sleep issues), as there is currently no solid scientific evidence (such as a placebo-controlled clinical trial) validating their efficacy.

holds up

The creator's position is scientifically very accurate and faithfully describes the current state of research.

noli's read

The creator's position is scientifically very accurate and faithfully describes the current state of research. The rigorous study she mentions, published in the journal Science by Yoshino et al. (2021)—a randomized controlled trial (RCT)—clearly shows that an NAD+ precursor improves muscle insulin sensitivity in postmenopausal, prediabetic women, but it did not measure general well-being, sleep, or hot flashes. Regarding these latter aspects, research is limited to very short pilot studies without a control group, which is more akin to a placebo effect than genuine proof of efficacy. Experts agree that while NAD+ is an exciting avenue for cellular vitality, clinical data are lacking to make it a ritual focused on menopause comfort. The creator's field observation, which qualifies as expert opinion, confirms this absence of tangible results in her patients. Following her recommendation to wait for stronger evidence before investing in these molecules is therefore a very wise approach.

the sources

  1. 1Martens CR, Denman BA, Mazzo MR, et al. 2018
  2. 2Elhassan YS, Kluckova K, Fletcher RS, et al. 2019

Claimed by Mary Claire Haver, MD. Noli grades the claim, never the person.

Decoded by Noli · July 14, 2026 · the original post

What the graded evidence says

Evidence
D
Effect
blood/muscle NAD+ metabolome vs. clinical outcomes (function, metabolism, longevity) — NR ~1000 mg/day raised NAD+ ~60% in healthy older adults (Martens, n=24 crossover) and augmented the aged muscle NAD+ metabolome (Elhassan, n=12) — but with only exploratory signals (a modest blood-pressure hint; anti-inflammatory cytokine shifts) and no proven functional or longevity benefit. No RCT evidence for hair/nail growth.
Measured on
healthy middle-aged and older adults; small trials (n=12-24), short duration

What’s uncertain

These raise NAD+ convincingly; the leap from 'higher NAD+' to 'you age slower or feel better' is unproven in humans. Longevity, energy and hair/nail claims are marketing ahead of the evidence.

Mary Claire Haver, MD in the Register58 claims graded · solidity 89/100See their record →

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