The gut microbiome (all bacteria that inhabit the intestinal tract) has a significant impact on human health. It modulates the immune defense, supplies the body with vitamins (vitamin B1, B2, B6, B12 and K), participates in the digestion of nutrients, supplies the intestinal epithelium with energy and stimulates the intestinal peristalsis. The tests in category Microbiome are performed in collaboration with the German laboratory BioVis. The patient pays a one-time transportation fee of 35lv. when giving a sample for analysis.