What role does COMT play in Darmgesundheit?

COMT (catechol-O-methyltransferase) is an enzyme that breaks down catecholamines (dopamine, norepinephrine) and estrogens. Its role in gut health is indirect: by modulating neurotransmitter levels, it can influence gut motility and the enteric nervous system. COMT is also part of the methylation cycle, which supports gut barrier integrity and inflammation control. However, direct evidence linking specific COMT variants (e.g., rs4680, Val158Met) to gut disorders like IBS or IBD is weak and mostly mechanistic. Consumer DNA tests may report COMT variants, but effect sizes are small and ancestry-dependent. Gut health is primarily shaped by diet, microbiome, and lifestyle. Without clinical context, COMT genotyping offers limited actionable insight for gut health. Evidence grade: unclear.