Is AMH useful for longevity?

AMH (anti-Müllerian hormone) is a well-established marker of ovarian reserve in women of reproductive age, used in fertility medicine to estimate the remaining egg supply. Its utility for general longevity is not well supported. The evidence linking AMH to lifespan is indirect: AMH levels correlate with age at menopause, which itself is associated with longevity. However, this relationship is confounded by genetics, lifestyle, and environmental factors. For men or postmenopausal women, AMH has no validated role in longevity prediction. Direct-to-consumer tests marketing AMH as a 'longevity biomarker' overstate the science. The evidence level is unclear/mechanistic at best. Clinical use for predicting individual lifespan is not justified. Caution: AMH levels vary with menstrual cycle and are not designed for general health optimization.