What to watch with COMT and Allergie?

The COMT gene variant (e.g., Val158Met) affects the breakdown of catecholamines and estrogens, which could theoretically modulate inflammatory responses. Some studies suggest a link to allergic conditions like asthma or hay fever, but the evidence is weak and inconsistent. Most allergies are mediated by histamine and IgE – genes like HNMT (histamine N-methyltransferase) or FCER1A play a larger role. COMT is not an established biomarker for allergy risk. Consumer DNA tests often overstate the clinical relevance of single SNPs. An increased allergy risk cannot be inferred from COMT alone; environmental factors, diet, and microbiome are critical. Caution against self-interpretation: evidence is mostly mechanistic or from GWAS with small effect sizes. A more comprehensive view on histamine metabolism, methylation, and immune regulation is advisable. For actual allergies, consult a physician, not genetic test results.