Myths vs facts: FOXO3 and menopause

FOXO3 is a gene primarily associated with longevity. Some GWAS studies suggest that certain variants in FOXO3 may be linked to a later age at menopause. However, the effects are very small – typically shifting menopause onset by a few months to at most one year. Importantly, menopause is influenced by many factors, including genetics (hundreds of genes), hormonal status, lifestyle, and environment. A single gene like FOXO3 explains only a tiny fraction of the variance. Consumer DNA tests that market FOXO3 variants as a 'menopause gene' greatly overstate its predictive power. There is no clinical recommendation to change family planning based on a FOXO3 test. The evidence comes from population genetic associations, not causal studies. Fact: FOXO3 is an interesting candidate but not a menopause predictor. Myth: A genetic test can tell you when menopause will occur.