Evidence check: ADH1B in the context of Blutzucker

ADH1B encodes an alcohol dehydrogenase enzyme. Certain variants (e.g., rs1229984) are associated with altered alcohol consumption – carriers of the fast-metabolizing allele tend to drink less, which may indirectly lower diabetes risk. Direct effects on fasting glucose or insulin sensitivity are weak and inconsistently reported. Evidence is based on observational studies and GWAS, not RCTs. Therefore, ADH1B is not suitable for individual blood sugar prediction or dietary advice. Lifestyle factors dominate. Caveat: Do not base clinical decisions solely on this gene. Evidence: human-moderate.