Is TCF7L2 useful for Wechseljahre?

The question of whether TCF7L2 is useful for menopause cannot be answered affirmatively based on current evidence. TCF7L2 is a well-established risk gene for type 2 diabetes, acting through the Wnt signaling pathway and insulin secretion. There are no direct studies linking TCF7L2 variants to menopause timing or symptoms. An indirect connection via glucose metabolism is conceivable, as insulin resistance and metabolic changes become more common during menopause, but this remains speculative. TCF7L2 variants have been identified in GWAS for diabetes, not for reproductive endpoints. Therefore, testing TCF7L2 for menopause is not supported. The evidence is rated as 'unclear' due to lack of specific data. Consumers should rely on established markers like FSH, estradiol, or anti-Müllerian hormone when assessing menopausal status.