was ist kefir — what does this mean exactly?

Kefir is a fermented milk drink originating from the Caucasus region. It is produced by adding kefir grains (a symbiotic culture of lactic acid bacteria, yeasts, and polysaccharides) to milk. During fermentation, lactic acid, carbon dioxide, and small amounts of alcohol are produced, giving kefir its characteristic tangy and slightly effervescent taste. Kefir is rich in probiotics, B vitamins, vitamin K2, and minerals like calcium and magnesium. The microorganisms in kefir may positively influence gut microbiota, support digestion, and modulate the immune system. However, the scientific evidence for many health claims remains limited. Tolerance varies individually; people with lactose intolerance often tolerate kefir better than milk because some lactose is broken down during fermentation. MyBody-X does not offer specific kefir tests. For personalized nutrition advice, individual gut microbiome analysis or lactose tolerance tests may be more appropriate. The information provided here is based on general dietary guidelines, not on product-specific data.