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Eleven molecules against aging. None even helped mice
✔️The longevity supplement market in 2026 is built on four pillars: NAD+ precursors, senolytics, multinutrient formulas, and "biomarker-based personalization." Sales are growing, shelves are overflowing. Underneath it all lies one awkward fact.
No supplement is approved or proven to extend human lifespan.
The Interventions Testing Program, funded by the U.S. National Institute on Aging, tested candidate compounds in mice — in a setting where extending lifespan is much easier than in humans. Of the eleven compounds tested, none extended life.
What actually has human data: vitamin D, omega-3, magnesium, and B vitamins. Not as elixirs, but as corrections for deficiencies that are common in modern people.
NMN and NR do raise NAD+ levels in the blood — that’s visible in studies. What that rise specifically does for lifespan has not been shown.
Senolytics like fisetin and quercetin look interesting in test tubes and in animals. In healthy adults, none are recognized as effective.
And a separate note for those being offered supplements based on genetic tests: there is no universal best supplement, but there’s also no evidence yet that gene-based selection works better than a standard blood test for deficiencies. Yet they sell the same thing to everyone.
The industry’s problem isn’t that the molecules are bad. The problem is that marketing runs years ahead of the data.
The best longevity protocol so far remains free. Sleep, movement, diet, not smoking. Sadly cheap.
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