What should I know about DNA Test Labor?

When considering a DNA test laboratory, key points include: Most direct-to-consumer (DTC) tests are not diagnostic – they provide risk indications, not medical diagnoses. Accuracy depends on the technology (e.g., genotyping arrays vs. sequencing) and lab accreditation. In Germany, genetic testing is regulated by the Genetic Diagnosis Act (GenDG), requiring medical counseling and consent. Many DTC labs are based abroad and may not comply. Furthermore, individual gene variant effects are typically small; lifestyle and environment matter more. Always consult a doctor for clinical interpretation. Evidence for many SNPs is weak to moderate, and results should not be overinterpreted. Choose labs that are transparent about their methods, limitations, and quality controls.