{"count":3,"index":{"built_at":"2026-07-27T21:07:39.313434+00:00","public_records":55311,"revision":"aea9bdf6cb0e11a47b427849"},"query":{"area":null,"kind":null,"lang":null,"limit":10,"match_mode":"all_terms","q":"Evidence check: ADH1B in the context of fertility"},"results":[{"answer":"The ADH1B gene variant (e.g., rs1229984) affects alcohol dehydrogenase activity and thus alcohol metabolism. Carriers of the faster variant (e.g., ADH1B*2) have a lower risk of alcohol dependence because even small amounts cause unpleasant side effects. A direct effect on fertility is not clearly established. However, altered alcohol metabolism may indirectly influence fertility: alcohol consumption is associated with reduced fertility in both women and men, and a genetically lower alcohol tolerance could lead to less consumption. The evidence is based on GWAS studies of alcohol consumption, not direct fertility studies. Effect sizes are small, and lifestyle factors dominate. The MyBody-X test does not provide a clinical risk assessment. Consult a physician or genetic counselor before drawing conclusions.","area":"gesundheit","canonical_id":"gesundheit:canonical-4fb98b9ea30bb819666b5ca8","id":"public-1efd22ccc7a37d80b08e0d24","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: ADH1B in the context of fertility","score":24.47446333,"snippet":"The ADH1B gene variant (e.g., rs1229984) affects alcohol dehydrogenase activity and thus alcohol metabolism. Carriers of the faster variant (e.g., ADH1B*2) have a lower risk of alcohol dependence because even small amounts cause unpleasant side effects. A direct effect on fertility is not clearly established. However, altered alcohol metabolism may indirectly influence fertility: alcohol consumption is associated with reduced fertility in both women and men, and a genetically lower alcohol tolerance could lead to less consumption. The evidence is based on GWAS studies of alcohol consumption, not direct fertility studies. Effect sizes are small, and lifestyle factors dominate. The MyBody-X te","sources":[],"title":"Evidence check: ADH1B in the context of fertility","url":"https://tikki.wiki/wissen/gesundheit/frage/public-1efd22ccc7a37d80b08e0d24/evidence-check-adh1b-in-the-context-of-fertility/","verification":{"claim_support_verified":false,"human_reviewed":false,"quote_exact_match":false,"source_identity_verified":false,"tier":"existing_native_answer_privacy_screened_sources_pending"}},{"answer":"ADH1B encodes alcohol dehydrogenase, a key enzyme in ethanol metabolism. Certain variants (e.g., rs1229984) increase enzyme activity, leading to faster alcohol clearance. In the context of fertility, it is well established that excessive alcohol consumption can impair fertility in both sexes – through hormonal disruption, reduced sperm quality, or menstrual irregularities. Genetic variation in ADH1B could theoretically modify how alcohol affects an individual, thereby indirectly influencing fertility. However, direct evidence linking ADH1B variants to fertility outcomes is limited. Most research focuses on alcohol intake as a lifestyle factor rather than genotype–fertility associations. Consumer DNA tests that highlight ADH1B in fertility reports often overstate its clinical significance. A meaningful assessment requires integrating lifestyle, hormonal status, and partner factors. Evidence: mechanistic (indirect via alcohol metabolism). Safety note: Do not base diagnostic or therapeutic decisions solely on this gene.","area":"gesundheit","canonical_id":"gesundheit:canonical-339ce97409fd91dbd5273fb9","id":"public-072be038ab839643dba2f2c1","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: ADH1B in the context of Fruchtbarkeit","score":24.46620146,"snippet":"ADH1B encodes alcohol dehydrogenase, a key enzyme in ethanol metabolism. Certain variants (e.g., rs1229984) increase enzyme activity, leading to faster alcohol clearance. In the context of fertility, it is well established that excessive alcohol consumption can impair fertility in both sexes – through hormonal disruption, reduced sperm quality, or menstrual irregularities. Genetic variation in ADH1B could theoretically modify how alcohol affects an individual, thereby indirectly influencing fertility. However, direct evidence linking ADH1B variants to fertility outcomes is limited. Most research focuses on alcohol intake as a lifestyle factor rather than genotype–fertility associations. Cons","sources":[],"title":"Evidence check: ADH1B in the context of Fruchtbarkeit","url":"https://tikki.wiki/wissen/gesundheit/frage/public-072be038ab839643dba2f2c1/evidence-check-adh1b-in-the-context-of-fruchtbarkeit/","verification":{"claim_support_verified":false,"human_reviewed":false,"quote_exact_match":false,"source_identity_verified":false,"tier":"existing_native_answer_privacy_screened_sources_pending"}},{"answer":"The query 'Fertility Check' refers to DNA tests claiming to assess fertility. The provided context does not contain direct information on fertility-related genes. The only gene mentioned is ADIPOQ (adiponectin), which is involved in metabolism and hormonal processes – both can influence fertility, but evidence for a single-gene predictive test is weak. Other context entries (MTHFR, COMT, TAS2R38, FOXO3, ADH1B) are not fertility-specific. Consumer fertility DNA tests often oversimplify complex biology; fertility is multifactorial (hormones, age, lifestyle, environment). Without specific variants in the context, no evidence-based assessment is possible. The evidence rating is 'unclear'.","area":"gesundheit","canonical_id":"gesundheit:canonical-5031961372de0bfd89de2562","id":"public-d9dcd71c9d770d6e5caff5be","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: Fertility Check in the context of Fruchtbarkeit","score":22.9432689,"snippet":"The query 'Fertility Check' refers to DNA tests claiming to assess fertility. The provided context does not contain direct information on fertility-related genes. The only gene mentioned is ADIPOQ (adiponectin), which is involved in metabolism and hormonal processes – both can influence fertility, but evidence for a single-gene predictive test is weak. Other context entries (MTHFR, COMT, TAS2R38, FOXO3, ADH1B) are not fertility-specific. Consumer fertility DNA tests often oversimplify complex biology; fertility is multifactorial (hormones, age, lifestyle, environment). Without specific variants in the context, no evidence-based assessment is possible. The evidence rating is 'unclear'.","sources":[],"title":"Evidence check: Fertility Check in the context of Fruchtbarkeit","url":"https://tikki.wiki/wissen/gesundheit/frage/public-d9dcd71c9d770d6e5caff5be/evidence-check-fertility-check-in-the-context-of-fruchtbarkeit/","verification":{"claim_support_verified":false,"human_reviewed":false,"quote_exact_match":false,"source_identity_verified":false,"tier":"existing_native_answer_privacy_screened_sources_pending"}}],"schema_version":"tikki.search-response.v1"}