wann trinkt man kefir am besten — when to see a doctor?

The question of the best time to drink kefir and when to see a doctor cannot be answered with evidence from the provided contexts. The contexts contain no specific studies or recommendations regarding kefir. Generally, kefir is often recommended in the morning on an empty stomach to support gut flora, but this is more traditional than scientifically proven. A doctor should be consulted for persistent digestive issues (bloating, diarrhea, abdominal pain) after kefir consumption, especially in cases of lactose intolerance or milk protein allergy. Also, individuals with weakened immune systems or after organ transplants should be cautious with raw (unpasteurized) kefir due to infection risk. The overall evidence is weak; most claims are based on anecdotal experience. Therefore, kefir should be considered part of a balanced diet without high expectations for specific timing. If in doubt or symptoms occur, medical advice is recommended.