NutriCare | INFINITY DNA-Test: which supplements make sense?

The NutriCare / INFINITY DNA-Test claims to provide personalized supplement recommendations based on genetic variants. However, the scientific evidence is often weak. Variants like rs9939609 (FTO) or rs4880 (SOD2) show small effects on BMI or oxidative stress, but they do not justify specific supplement dosing. For rs174546 (FADS1), there are hints of altered omega-3 needs, but clinical trials are lacking. Many offered 'gene-supplement' pairings rely on mechanistic associations or marketing rather than robust human studies. A DNA test can at best suggest broad directions (e.g., vitamin D, omega-3, magnesium), but cannot replace tailored supplementation. Over-supplementation can be harmful. The predictive power is limited; blood analysis (e.g., nutrient levels) is usually more informative. Evidence: mixed/unclear.