Myths vs facts: Stuhlprobe and Darmgesundheit

Stool sample analysis for gut health is popular but requires careful interpretation. **Fact:** Home tests can reveal microbial composition and diversity, which may offer clues about digestive health. However, the evidence linking specific microbes to health outcomes is mostly observational and lacks large randomized controlled trials. **Myth:** A stool test can diagnose conditions like IBS or IBD. In reality, these tests are not diagnostic; they are not standardized and are not approved for medical diagnosis. **Myth:** IgG food sensitivity tests from stool are reliable. Mainstream medicine considers them invalid because IgG reflects normal immune exposure, not intolerance. **Fact:** Results vary significantly between providers and lack reproducibility. **Safety note:** Do not base major dietary changes solely on these tests; consult a healthcare professional, especially for children or those with medical conditions. The overall evidence is best described as marketing-driven and practice-based, not strong clinical evidence.