Fisetin for Anti-Aging

Research suggests that fisetin, a naturally occurring plant flavonoid, shows meaningful promise as an anti-aging compound across several biological mechanisms, including the elimination of senescent cells, reduction of oxidative stress and inflammation, activation of longevity-associated signaling pathways such as SIRT1 and SIRT6, and extension of lifespan in model organisms like C. elegans. Studies include laboratory experiments in animal models and cell cultures, computational screening analyses, and mechanistic reviews, the majority of which directionally support fisetin's anti-aging potential, particularly in the context of senolytic activity and protection against age-related cellular deterioration. However, the human evidence remains limited and inconclusive: one small pilot study involving ten adults taking fisetin over six months using epigenetic aging measures found mixed results, with roughly half of participants showing increased rather than decreased biological age, and no significant change in telomere length, leading its authors to caution against recommending fisetin as an anti-aging supplement without larger, more rigorous trials. The current body of evidence is therefore best characterized as mechanistically suggestive and preclinically encouraging, but lacking the robust human clinical data needed to draw firm conclusions about its effectiveness for slowing aging in people.