Myths vs facts: NutriCare | INFINITY DNA-Test and fatigue

The NutriCare | INFINITY DNA test from MyBody-X analyzes genetic variants claimed to relate to nutrient metabolism and fatigue. However, the scientific evidence for direct causal links is weak. For instance, the MTHFR C677T variant is common, but current guidelines (USPSTF 2023) do not recommend testing or switching to methylfolate – folic acid works fine for most people. Randomized trials show no benefit of genotype-matched diets for weight loss or energy levels. Fatigue has many causes (iron deficiency, thyroid function, sleep quality, stress) that a DNA test cannot address. The test may provide awareness but is not diagnostic. Treat results as screening signals, not clinical answers. Evidence grade: marketing/unclear. Sources: PMID:37526720, MyBody-X blogs.