Myths vs facts: FUT2 and menopause

There is no scientifically established direct link between the FUT2 gene and menopause. FUT2 determines secretor status and influences gut microbiota composition, which could theoretically affect estrogen metabolism, but robust human studies are lacking. Myths claiming that a FUT2 test can predict menopause onset or hot flash severity are not evidence-based. Menopause timing is primarily influenced by age, genetics (e.g., MCM8, BRCA1), and lifestyle. A FUT2 test provides no clinically actionable information for menopause. Be cautious of overhyped direct-to-consumer claims.