Is COMT useful for Darmgesundheit?

Whether COMT is useful for gut health is not clearly supported by current evidence. COMT (catechol-O-methyltransferase) degrades neurotransmitters like dopamine and adrenaline. Some research suggests a role in the gut-brain axis and inflammation, particularly the rs4680 (Val158Met) variant, which is linked to altered stress reactivity and possibly gut permeability. However, these are mostly mechanistic or animal-based findings. No robust human studies demonstrate a direct benefit of COMT genetic testing for gut health. Effect sizes are small, and individual predictive value is low. For improving gut health, focus on established factors: fiber intake, Mediterranean diet, probiotics, and stress management. A COMT test currently offers no clinically actionable insights for the gut.