Evidence check: NutriCare | INFINITY DNA-Test in the context of sleep

The NutriCare INFINITY DNA-Test in the context of sleep claims to identify genetic variants affecting circadian rhythm and sleep quality. However, the evidence is limited. While GWAS have linked SNPs like CLOCK rs1801260 to chronotype, the effect sizes are very small and account for only a tiny fraction of sleep variability. The test cannot diagnose sleep disorders or guarantee personalized sleep optimization. Sleep is heavily influenced by environment, behavior, stress, and light exposure – factors a DNA test does not capture. Marketing often overstates clinical relevance. Such a test may serve as a conversation starter for better sleep hygiene, but it is not a substitute for medical evaluation. Evidence grade: gwas (with caveats). Caveat: No medical diagnosis; lifestyle factors dominate.