- Researchers from the University of Tartu found that nearly 90% of 186 common medications affected gut composition, and almost half left long-lasting microbial changes that persisted years after use ended
- Antibiotics caused the strongest and most persistent gut disruption, with measurable microbial shifts still evident six months after use and cumulative effects worsening with each additional treatment course
- Non-antibiotic drugs like benzodiazepines, beta-blockers, glucocorticoids, and proton pump inhibitors also altered microbial composition
- Long-term medication use explained more variation in gut microbiome composition than current prescriptions. This shows that the gut retains a biological "memory" of past pharmaceutical exposures
- Restoring gut health starts by reducing unnecessary medications, avoiding vegetable oils, and eating whole foods that help beneficial bacteria recover and rebuild balance over time
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