Myths vs facts: COMT and fertility

The COMT gene encodes an enzyme that breaks down catecholamines and estrogens. A common myth is that the 'warrior' variant (Val158Met) directly predicts fertility – for example, by conferring better stress handling or hormone balance. In reality, studies show only a small, inconsistent link: some research suggests a modest effect on estrogen metabolism, possibly relevant in conditions like endometriosis, but the effect size is tiny (about 1–2% of variance). The 'warrior'/'victim' labels are marketing hype, not clinical tools. For individual fertility, age, hormone levels, lifestyle, and organic causes are far more important. A COMT test alone cannot predict conception chances or IVF success. If considering supplements (e.g., magnesium, B vitamins) based on genotype, consult a doctor – there is no robust evidence for routine adjustments. Bottom line: COMT is a minor piece of the puzzle, not a fertility predictor.