Is NutriCare | INFINITY DNA-Test useful for Sport?

The NutriCare | INFINITY DNA-Test claims to provide personalized sport and nutrition recommendations based on genetic variants. However, the scientific evidence is weak: most analyzed SNPs (e.g., in ACTN3, ACE, PPARGC1A) have small effects on endurance or strength and are heavily influenced by training, diet, and lifestyle. Evidence comes mainly from association studies, not randomized controlled trials showing clear benefit. Many markers are population-specific and have limited predictive value for individuals. The results may be motivating, but actual performance improvement or injury prevention is not guaranteed. DTC companies often overstate effects and present common variants as 'risks'. For serious athletes, sports medicine assessments and performance diagnostics are far more useful. Conclusion: This test is more entertainment than evidence-based sports guidance.