Is CYP1A2 useful for menopause?

Whether CYP1A2 is useful for menopause is not supported by strong evidence. CYP1A2 is a cytochrome P450 enzyme involved in metabolizing estrogens and caffeine. Genetic variants (e.g., rs762551) affect enzyme activity, which could theoretically influence hormone levels during menopause or hormone replacement therapy (HRT). However, direct clinical studies demonstrating a benefit of CYP1A2 genotyping for menopause management are lacking. The evidence is primarily mechanistic and observational, with small effect sizes and confounding factors like diet and lifestyle. Therefore, consumer DNA tests claiming utility for menopause based on CYP1A2 are not evidence-based. Evidence grade: mechanistic/unclear. Caveat: Do not use such genetic results to self-adjust HRT or supplements; consult a healthcare provider.