Nährstoffcheck: can a microbiome test help?

A microbiome test can provide insights into gut bacteria composition, but its ability to directly assess nutrient deficiencies or guide personalized nutrition is still scientifically limited. Most commercial tests rely on correlations between bacterial strains and dietary components, not causal evidence. While the microbiome does influence absorption of certain vitamins (e.g., B12, K) and minerals, individual recommendations remain speculative. A traditional nutrient check via blood or urine analysis is far more reliable. The test may serve as a complementary tool but should not be the sole basis for supplementation or dietary changes. Beware of overblown marketing claims.