What to watch with COMT and Blutzucker?

COMT (catechol-O-methyltransferase) degrades catecholamines like dopamine and adrenaline. Variants (e.g., rs4680, Val158Met) alter enzyme activity: slow Met carriers have higher dopamine levels, which can influence insulin secretion and stress response, thereby affecting blood glucose. However, the evidence is weak – no robust clinical studies show a practically relevant effect. Blood sugar regulation is primarily driven by diet, exercise, sleep, and stress management. A DNA test provides only a small piece of the puzzle. To optimize blood sugar, focus on a low-glycemic diet, regular physical activity, and stress reduction. The COMT variant alone does not warrant specific dietary changes or supplements. Beware of exaggerated marketing claims: effect sizes are small, and lifestyle factors dominate. For metabolic conditions like diabetes, consult a physician.