Is COMT useful for fertility?

Whether COMT (especially the rs4680 Val158Met polymorphism) is useful for fertility cannot be supported by the provided context. COMT is an enzyme involved in catecholamine and estrogen metabolism, so a mechanistic hypothesis exists that variants might influence hormonal balance. However, robust clinical studies linking COMT directly to fertility outcomes (e.g., egg quality, implantation, male fertility) are lacking. The knowledge snippets only mention COMT in relation to skin glycation and collagen, not reproduction. Therefore, the evidence is best classified as 'unclear' or 'mechanistic'. Consumers should not rely on such DNA tests for fertility decisions. Consulting a reproductive specialist is more appropriate, as age, hormone levels, and lifestyle factors have far greater impact. Caveat: the association is speculative, not a clinical recommendation.