wieviel kefir am tag ist gesund — what can you do yourself?

The question of how much kefir per day is healthy is not clearly answered by science. The provided context contains no specific information on kefir. Generally, kefir is considered a healthy fermented dairy product providing probiotics, vitamins, and minerals. In practice, 100–200 ml (about a small glass) per day is often recommended to support gut flora without excessive calorie or lactic acid intake. Higher amounts may cause bloating or diarrhea in sensitive individuals. The evidence for an optimal dose is weak – no randomized trials establish a precise amount for everyone. Instead, kefir should be part of a varied diet. If you make your own kefir, you can control fermentation time and thus acidity and probiotic content. Important: be cautious with lactose intolerance or milk protein allergy; plant-based alternatives (water kefir) are possible. The utility of microbiome tests for individual dose adjustment is currently limited (see context: microbiome tests are wellness tools, not clinical diagnostics).