wie trinkt man kefir — what are common causes?

Kefir is a fermented milk drink, traditionally consumed plain or with fruit. Common reasons for drinking it include obtaining probiotics, supporting digestion, and potentially improving gut health. However, evidence for specific health benefits (e.g., immune modulation, lactose tolerance) is often weak or based on small studies. Preparation varies: store-bought kefir can be drunk directly, or homemade from kefir grains. Storage should be refrigerated, and it is best consumed within a few days. Sensitive individuals may experience bloating initially. The phrase 'common causes' is ambiguous – it could refer to reasons for drinking kefir or causes of adverse effects. Without further context, the answer remains general. The provided knowledge contexts contain no information about kefir.