wie gesund ist kefir — what can you do yourself?

Kefir is a fermented dairy product rich in probiotics, vitamins, and minerals. Evidence suggests benefits for gut health, digestion, and immune modulation, but most studies are mechanistic or observational; large randomized controlled trials are limited. Individual responses vary, especially for those with lactose intolerance or compromised immunity. Homemade kefir requires proper hygiene to avoid contamination. Overall, kefir can be a healthy addition to a balanced diet, but claims should not be overstated. The evidence level is mixed: some support exists, but not strong clinical proof for specific health outcomes.