{"count":1,"index":{"built_at":"2026-07-26T22:34:10.686833+00:00","public_records":55311,"revision":"03f31f12098967435e3a2fc7"},"query":{"area":null,"kind":null,"lang":null,"limit":10,"match_mode":"all_terms","q":"Lay opinion vs evidence: FTO Check"},"results":[{"answer":"Lay opinion often claims that the FTO gene is a 'fat gene' that predestines obesity. Evidence tells a more nuanced story. FTO variants (e.g., rs9939609) are among the most replicated GWAS hits for BMI, but each risk allele increases BMI by only ~0.3 kg/m² on average. The effect is small and polygenic – hundreds of other loci contribute. Moreover, the association is partly mediated by appetite and eating behavior, not a direct metabolic defect. Lifestyle factors (diet, exercise, sleep) have a far larger impact. Direct-to-consumer FTO tests can inform about genetic predisposition, but they are not diagnostic and should not replace a balanced view of weight management. Many people with the risk allele are lean, and many without it are overweight. The clinical utility for individuals is limited. MyBody-X tests in this area are for educational purposes. Caveat: lay opinions greatly overestimate single-gene effects. Evidence: gwas.","area":"gesundheit","canonical_id":"gesundheit:canonical-8702dd7cc78de2ffe84ff8e7","id":"public-5abebe9970a9db525f35520c","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Lay opinion vs evidence: FTO Check","score":37.99320759,"snippet":"Lay opinion often claims that the FTO gene is a 'fat gene' that predestines obesity. Evidence tells a more nuanced story. FTO variants (e.g., rs9939609) are among the most replicated GWAS hits for BMI, but each risk allele increases BMI by only ~0.3 kg/m² on average. The effect is small and polygenic – hundreds of other loci contribute. Moreover, the association is partly mediated by appetite and eating behavior, not a direct metabolic defect. Lifestyle factors (diet, exercise, sleep) have a far larger impact. Direct-to-consumer FTO tests can inform about genetic predisposition, but they are not diagnostic and should not replace a balanced view of weight management. Many people with the risk","sources":[],"title":"Lay opinion vs evidence: FTO Check","url":"https://tikki.wiki/wissen/gesundheit/frage/public-5abebe9970a9db525f35520c/lay-opinion-vs-evidence-fto-check/","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"}