What is the recommended dose of Spermidine?

- **Look for:** Spermidine content quantified (mg per serving); wheat germ-derived or synthetic; 1-6mg per serving - **Avoid:** "Wheat germ extract" without spermidine quantification; very low dose...

Is Spermidine safe to take daily?

Spermidine is rated "Generally Safe" based on clinical evidence. Always consult your healthcare provider before starting any supplement.

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Ingredient Research

Graded against 173,636 supplements + 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, NIH DSLD

Spermidine

MODERATE EVIDENCESupplementLast updated

SCAN DOSE SUMMARY

Spermidine is a polyamine naturally found in wheat germ, soybeans, aged cheese, and mushrooms that induces autophagy — the cell's self-cleaning process that recycles damaged proteins and organelles. A 2018 observational study in the Lancet found higher dietary spermidine intake was associated with REDUCED ALL-CAUSE MORTALITY (5+ year follow-up). This is the most compelling longevity signal for any dietary polyamine. Our research shows it also improved memory in elderly adults (SmartAge trial) and extended lifespan in yeast, flies, worms, and mice. Spermidine may be the "caloric restriction mimetic" that actually works through diet — without requiring the extreme restriction.

WHAT IT DOES

Spermidine induces autophagy through epigenetic mechanisms: (1) it inhibits the acetyltransferase EP300/p300, which leads to deacetylation of ATG proteins (autophagy machinery); (2) deacetylated ATG proteins activate autophagosome formation — the cell packages damaged proteins, dysfunctional mitochondria, and aggregated debris into membrane-bound vesicles; (3) autophagosomes fuse with lysosomes for degradation and recycling of components. This "cellular housekeeping" becomes less efficient with age, allowing damaged proteins and organelles to accumulate — contributing to neurodegeneration, cancer, and cardiovascular disease. Spermidine essentially keeps the cleaning crew working.

OPTIMAL DOSAGE

Look for: Spermidine content quantified (mg per serving); wheat germ-derived or synthetic; 1-6mg per serving
Avoid: "Wheat germ extract" without spermidine quantification; very low dose (<0.5mg); products making anti-cancer claims
Minimum effective dose: 1mg/day supplemental (SmartAge trial used 1.2mg); dietary: 2 tablespoons wheat germ (~6mg)
Third-party tested brands: spermidineLIFE (Austrian — original researchers), DoNotAge, Primeadine

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SAFETY PROFILE

Critical Interactions (Do Not Combine Without Medical Supervision)

No critical interactions identified.

Moderate Interactions (Monitor Closely)

Theoretical/Low-Risk Interactions

WHO SHOULD BE CAREFUL

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Independently graded against 173,636 indexed supplements with 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, and NIH DSLD | Last updated:

Not medical advice. Based on published clinical research and systematic reviews.

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