Spermidine

Spermidine is a naturally occurring polyamine found in all living cells, with particularly rich dietary sources including wheat germ, aged cheese, and fermented soybeans. Research suggests that spermidine plays a key role in cellular renewal through a process called autophagy, where the body clears out damaged cell components and recycles them, a mechanism closely associated with healthy aging. Studies indicate that higher dietary spermidine intake correlates with improved cognitive function and may support cardiovascular health, with some epidemiological research linking greater consumption to increased longevity. Early investigations have also explored its potential benefits for hair growth and follicle health. Most supplemental forms are derived from wheat germ extract, which provides spermidine alongside other beneficial nutrients, making it one of the more actively studied compounds in the longevity research space.