Questions people ask about DNA Test Genetik

DNA tests like MyBody-X can reveal genetic predispositions, but they do not replace clinical diagnostics. For food intolerances (e.g., lactose intolerance), hydrogen breath tests or blood tests are the standard – a genetic test alone is insufficient. IgG food tests are scientifically controversial: elevated IgG levels indicate immune exposure, not allergy or intolerance. For celiac disease, an HLA-DQ test can narrow risk, but diagnosis requires a duodenal biopsy. A well-documented example is alcohol flushing: variants in ALDH2 (rs671) and ADH1B (rs1229984) cause facial redness and nausea, common in East Asian populations (PMID:27801545, PMID:37875790). This genetic information is useful but also linked to increased cancer risk with regular drinking (PMID:21187698, PMID:17071628). For hormone or nutrient checks, blood analyses (like the Hormon & VitalCheck für Frauen) are more informative than DNA tests. Bottom line: DNA tests provide clues, not diagnoses. Always consult a doctor for symptoms.