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Brad Stanfield@bradstanfieldmdX

Avoid These Popular Supplements (shout out to Professor Matt Kaeberlein @mkaeberlein & Professor Brian Kennedy @BKennedy_aging during

what it claims

The creator advises avoiding certain popular supplements, particularly those marketed as "anti-aging" or sold as proprietary blends, because they lack robust evidence, are often over-hyped, or present unnecessary risks.

holds up

The creator's approach is based on selecting products according to the lack of rigorous human evidence or data suggesting an unfavorable risk-benefit ratio.

noli's read

The creator's approach is based on selecting products according to the lack of rigorous human evidence or data suggesting an unfavorable risk-benefit ratio. He relies on meta-analyses and randomized controlled trials (RCTs) to challenge the efficacy of supplements such as certain high-dose antioxidants or unvalidated "anti-aging" compounds, which are often cited in scientific literature as having no significant effect for the general population. Although his position is cautious, it is sometimes criticized for a restrictive interpretation of certain clinical data, particularly regarding nutrients like vitamin D, where results can vary depending on subgroups. The analysis is broadly aligned with the consensus of nutrition experts who recommend prioritizing whole foods over supplements, except in cases of proven deficiency or specific needs. This is not a demolition, but a call for vigilance in the face of the sector's aggressive marketing.

the sources

  1. 1Martens CR, Denman BA, Mazzo MR, et al. 2018
  2. 2Elhassan YS, Kluckova K, Fletcher RS, et al. 2019
  3. 3Chang CH, Tsai WC, Lin MS, Hsu YH, Pang JHS 2010
  4. 4Leisegang K, Finelli R, et al. 2022
  5. 5Yakubu MT, Akanji MA, Oladiji AT 2009
  6. 6Kaliounji A, Shadid A, et al. 2024
  7. 7LiverTox (NIH / NIDDK) 2024

Claimed by Brad Stanfield. Noli grades the claim, never the person.

Decoded by Noli · July 18, 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.

Brad Stanfield in the Register30 claims graded · solidity 90/100See their record →

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