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Proven · 7.6/10

Spermidine

Evidence C · mixed evidence ▼ 8.6% momentum 🥇 First scout open
7.6/ 10

Spermidine is a dietary polyamine that supports autophagy and mitophagy through EP300 inhibition and eIF5A hypusination. Its strongest human signal is the Kiechl 2018 Bruneck cohort, where higher dietary spermidine intake tracked with lower 20-year mortality. But the main cognition RCT, Schwarz 2022 SmartAge, missed its primary endpoint, and all published human efficacy trials used wheat germ extract rather than synthetic 3HCL. Read the full breakdown →

The prediction game

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Ring Proven Momentum 8.6% Updated Jul 20, 2026 How the Index ranks →

For education only, not medical advice. Supplements, peptides, and protocols can interact with medications and conditions. Talk to a qualified clinician before starting anything here.