wann kefir am besten trinken — what can you do yourself?

The question about the best time to drink kefir cannot be answered from the provided context, which focuses on DNA tests and their limitations. General practice suggests consuming kefir on an empty stomach or between meals to maximize probiotic survival through stomach acid. Others prefer it in the evening for its calming effect on digestion. What you can do yourself: make kefir at home from milk or water, adjust fermentation time (shorter = milder, longer = more acidic), and flavor with fruits or herbs. Start slowly to allow your gut to adapt. Evidence for these recommendations is based on traditional use and basic microbiology, not on clinical trials from the given context. Caveat: consult a doctor if you have a compromised immune system or serious gastrointestinal conditions.