was kostet ein gentest beim mensch — what are common causes?

The cost of a human genetic test varies widely: single-variant direct-to-consumer tests typically range from 50–200 €, while whole-exome or genome sequencing can cost several thousand euros. The provided context does not include specific pricing. Common reasons for genetic testing include: assessing hereditary disease risk (e.g., TCF7L2 for diabetes, LEPR for obesity), pharmacogenetic compatibility, nutrition and fitness guidance (GSTM1, vitamin D needs), and behavioral traits (MAOA). Caveat: evidence for many consumer tests is weak or mechanistic; they are not diagnostic. Always consult a healthcare professional for clinical decisions.