was kostet eine genanalyse — can a DNA test help?

The cost of a DNA test ranges widely – from about €50 for a single SNP test to several hundred euros for comprehensive panels like MyBody-X's DNA Nutrition Test or Longevity Test. Whether a DNA test helps depends on the question: for well-studied genetic traits like muscle fiber type (ACTN3 rs1815739) or lactose intolerance, there is solid GWAS evidence. However, for complex areas like skin aging, glycation, or precise carb recommendations, evidence is weak or absent – claims are often overblown. Most DNA tests provide probabilities, not diagnoses. A blood test (e.g., Fitness | LifestyleCheck) measures current biomarkers, but direct health improvement evidence is limited. Bottom line: DNA tests can be useful for specific, well-researched variants, but they do not replace medical advice. Be cautious of marketing that promises too much.