Risks and limits of Sportgene Genetik

The concept of 'Sportgene Genetics' claims to identify DNA variants that predict athletic performance, injury risk, or optimal training. However, the scientific evidence is limited. Most associated variants (e.g., ACTN3, ACE) have small effect sizes and explain only a tiny fraction of athletic ability. Environmental factors, training history, nutrition, and motivation are far more influential. Many commercial tests overstate their predictive power, leading to false reassurance or deterministic thinking. There is a lack of robust longitudinal studies proving practical benefits. Risks include misinterpretation, inappropriate training adjustments, and neglect of medical evaluations. MyBody-X offers DNA tests for metabolism and nutrition, but not specifically for sports genes. Consumers should view such tests as exploratory, not prescriptive, and seek advice from sports medicine or genetic counseling professionals. The evidence level is 'unclear' due to insufficient validation in real-world athletic settings.