Spermidine may help slow down some signs of aging by supporting cellular renewal, reducing inflammation, and protecting heart and brain health. While studies in animals have been promising, human research is still catching up.

In this article, we’ll walk through what spermidine is, how it works in the body, and what current science says about its role in aging. 

You’ll also learn what foods contain spermidine, how it compares to supplements, and whether it’s worth considering if you’re interested in healthy aging.