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Evidence-Based Supplement Research
Evidence-Based Supplement Research

Clostridium butyricum

Safety profile

4 studies reporting safety data

Across 4 clinical studies, no specific adverse events were quantitatively reported for Clostridium butyricum. The probiotic was described as generally well tolerated in all 4 studies, with statements such as no serious adverse events occurring and no adverse events reported during treatment. No studies reported an increased risk of any event compared to control, nor did any identify a significant difference in specific safety markers.

Caveats: Limited evidence base; absence of reports does not establish safety. Studies were likely powered for efficacy rather than safety, and long-term safety or use in vulnerable populations has not been characterized.

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