Kefir is a fermented dairy drink rich in probiotics. Typical symptoms when starting or overconsuming include bloating, gas, mild abdominal cramps, or diarrhea – especially in individuals with sensitive guts or lactose intolerance. These effects are usually temporary as the gut microbiome adapts. With regular moderate intake (about 100–200 ml daily), many people report improved digestion, reduced constipation, and enhanced immune function. Caution: those with severe immune deficiencies or acute gastrointestinal conditions should consult a doctor before consuming kefir. The evidence is based on common clinical practice and nutritional guidelines, not on specific studies from the provided context. MyBody-X does not offer a kefir test; this information comes from general health knowledge.
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