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Condition

Longer Lifespan

Aging is the gradual wearing down of cells and tissues, driven by things like DNA damage, shortening telomeres, tired mitochondria, and lingering inflammation. Omega-3 fatty acids and vitamin D have the strongest evidence among supplements people explore for healthy aging, with studies involving thousands of people. Still, no supplement has been shown to extend human lifespan, and a small trial of astragalus found no clear difference in telomere length.

Sources: PMID 39275278

Supplements studied
2
Graded outcomes
1
Trials
2
People studied
108,682

Evidence by supplement

  • Strong
  • Moderate
  • Limited
  • Very limited

2 supplements

Astragalus: outcomes studied for Longer Lifespan
GradeOutcomeEffectSizeStudiesPeopleStudies list
Telomere Length

No effect

NoneNo effect1 study40 people
Vitamin D: outcomes studied for Longer Lifespan
GradeOutcomeEffectSizeStudiesPeopleStudies list
All-Cause MortalityImproves (the measure goes down)1 study94,148 people

Studies that measured all-cause mortality

Key findings

  • Telomere LengthAstragalus

The Longevity and Healthy Aging Support protocol

2 primary supplements · 8 supporting supplements

See the full protocol

Shop the evidence-backed picks

Fullscript collectionMuscle, performance and healthy ageing: evidence-graded picksOpen on Fullscript

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Studies cited

2 studies from PubMed

  1. Vitamin D supplementation for prevention of mortality in adultsCochrane Database Syst Rev · PMID 21735411
  2. A Natural Astragalus-Based Nutritional Supplement Lengthens Telomeres in a Middle-Aged Population: A Randomized, Double-Blind, Placebo-Controlled Study.Nutrients · PMID 39275278