Supplement × Supplement·a synergy·Emerging evidence
Spermidine (autophagy) and NMN (NAD+ restoration) target complementary aging mechanisms and are commonly combined in longevity stacks.
Every entry follows the same shape: what is happening, the mechanism, and the recommendation.
What is happening. Spermidine (autophagy) and NMN (NAD+ restoration) target complementary aging mechanisms and are commonly combined in longevity stacks.
Mechanism. NMN raises NAD+ to support sirtuin and mitochondrial function, while spermidine drives autophagic clearance, two distinct but complementary hallmarks-of-aging pathways.
Recommendation. Can be taken together; no required separation. Combined human efficacy data are lacking.
Effect on the composite score
If both NMN and Spermidine are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).
The full algorithm, the clamping rules, and four worked stacks are at /methodology/stack-score.
Every claim on this page is cited. PMIDs link straight to PubMed.
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