How are ADH1B and gut health related?

The relationship between ADH1B and gut health is not directly covered in the provided context. ADH1B encodes alcohol dehydrogenase, which metabolizes ethanol to acetaldehyde. Certain variants (e.g., rs1229984, the ADH1B*2 allele) result in faster ethanol breakdown and higher acetaldehyde levels. Acetaldehyde is a toxic intermediate that can damage the gut lining, increase intestinal permeability, and alter the microbiome. Mechanistic studies suggest that rapid alcohol metabolism may contribute to gut inflammation and dysbiosis. However, human evidence is still limited and not conclusive. MyBody-X DNA tests can detect ADH1B variants, but results should not be used for medical diagnosis. If you have gut issues or consume alcohol, consult a doctor. Evidence: mechanistic.