Myths vs facts: FTO and menopause

The question of myths vs. facts regarding FTO and menopause is nuanced. FTO (fat mass and obesity associated) is a gene whose variants are linked to higher BMI and obesity risk in large GWAS studies. A common myth is that the FTO gene directly determines whether you will gain weight during menopause. The fact is that menopause weight gain is multifactorial: hormonal shifts (declining estrogen), aging, lifestyle, and genetics all contribute. The effect of FTO is small and not specific to menopause. DNA tests claiming to predict menopause weight gain or prescribe a personalized diet based on FTO are not supported by strong evidence. Current guidelines emphasize overall healthy lifestyle rather than genotype-matched interventions. Evidence: human-moderate (GWAS) but not clinically actionable for menopause. Caveat: FTO may influence appetite regulation, but the effect is modest and easily overridden by diet and exercise.