What should I know about vorteile personalisierter gesundheit?

Personalized health (e.g., DNA tests, microbiome analysis) promises tailored recommendations for diet, fitness, or skincare. However, the evidence is mixed. A few markers like LCT (lactose) or HLA (celiac) are well-supported, but most nutrigenetic SNPs have tiny effect sizes (<1% variance) and rely on GWAS or mechanistic studies, not RCTs. Benefits include increased health awareness and motivation for lifestyle changes. Drawbacks include risk of misinterpretation, unnecessary dietary restrictions (e.g., IgG tests), or false reassurance. For children or medical concerns, clinical evaluation is essential. These tests are meant as inspiration, not diagnosis. Evidence: mixed – partly human-moderate, partly marketing. Sources: PMC13146351, PMC13202264, dbSNP rs1137101.