Across 3 studies, all reported beneficial effects on gut microbiota composition, with effect sizes classified as moderate (2 studies) or small (1 study). The evidence base is small and preliminary, with no statistically significant findings reported and no consistent dose, duration, form, or population data available.
Caveats: Evidence base is small (only 3 studies) — conclusions should be considered preliminary. All reported effects are beneficial, but none of the studies reported statistical significance. Two of the three studies are narrative reviews, and the third is an animal study, limiting the strength of the evidence for human outcomes. Available evidence is overwhelmingly positive — clinical literature in this area is subject to publication bias (null-result studies are less likely to be published or indexed).
consuming Lactobacillus rhamnosus lysate powder ... improved gut microbiota composition
how the new approach could be involved in the gut microbiome modulation to prevent and treat gut dysbiosis
CDEE modulated gut microbiota that altered by HFD through an increased abundance of Lactobacillus reuteri compared with the HFD group
pretreatment with BL improved CR-induced gut microbiota dysbiosis by reducing the content of Proteobacteria, while increasing the content of Lactobacillus.