In brief: Spermidine is a naturally occurring polyamine found in human cells and many foods. It is studied in relation to autophagy and ageing biology.
Where is spermidine found?
| Food | Interpretation |
|---|---|
| Wheat germ | Relatively rich source |
| Legumes | Regular plant source |
| Mushrooms | Can contain meaningful amounts |
| Aged cheese | Can contain spermidine but may also be high in salt |
What does research show?
Observational studies report associations between higher estimated spermidine intake and some health outcomes. Such data do not prove causality. Dietary patterns, physical activity and other lifestyle factors may contribute to the associations.
Autophagy is not proof of anti-ageing
Cell and animal studies are interesting but do not prove that a particular food or spermidine dose extends human lifespan.
Practical perspective
Foods containing spermidine fit well into a varied, plant-focused diet. There is no generally accepted daily target for spermidine.
FAQ
Is spermidine a vitamin?
No.
Does it extend life?
Not proven in humans.
Which foods contain it?
Wheat germ, legumes, mushrooms and aged cheese are examples.
Do people need supplements?
Not automatically.
Conclusion
Spermidine is an interesting research topic. Food sources can be part of a varied diet without making life-extension claims.
