Evidence supporting the use of: Lactobacillus gasseri
For the health condition: Antibiotics (side effects of)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Lactobacillus gasseri is a species of probiotic bacteria that has been studied for its potential to alleviate side effects associated with antibiotic use, particularly antibiotic-associated diarrhea (AAD) and disruption of the gut microbiome. The rationale for its use is based on the ability of certain probiotic strains to restore balance to the gut flora after antibiotics disrupt the normal microbial community. Several clinical studies and meta-analyses have indicated that various probiotics, including some strains of Lactobacillus, can reduce the incidence and severity of AAD. Specifically, L. gasseri has demonstrated the capacity to survive gastrointestinal transit and adhere to intestinal mucosa, which are important characteristics for probiotics intended to restore gut health. Some randomized controlled trials have shown that supplementation with L. gasseri can help reestablish beneficial microbial populations and improve gut barrier function following antibiotic treatment. However, while the general benefit of probiotics for managing antibiotic side effects is well-supported, the majority of clinical evidence focuses on strains such as L. rhamnosus GG and Saccharomyces boulardii. Evidence specific to L. gasseri is promising but less robust, consisting of smaller studies and extrapolation from broader research on lactobacilli. Overall, using L. gasseri to support gut health during or after antibiotics is scientifically plausible and supported by moderate evidence, but it is not as strongly validated as some other probiotic strains.

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