ist kefir am abend gesund — what symptoms are typical?

Whether kefir in the evening is healthy cannot be directly answered from the provided context, as no specific studies or statements about kefir are included. Generally, kefir is a fermented dairy product rich in probiotics (e.g., bifidobacteria) that may support gut health. However, some individuals may experience symptoms such as bloating, gas, or diarrhea, especially if lactose intolerant (the context mentions the MCM6 genetic test for lactase persistence). Consuming kefir in the evening could potentially affect sleep quality in sensitive people due to active digestion. The evidence is mixed: there are mechanistic and observational hints, but no high-quality clinical trials on this specific topic. Tolerance varies individually. If symptoms persist, consult a doctor.