Research synthesisLow evidenceModerate effect13 studies · 13 beneficial · 0 neutral · 0 harmful
Across 13 studies, all reported beneficial effects of Lactobacillus rhamnosus on reducing inflammation, with effect sizes predominantly moderate. The highest-quality evidence comes from a systematic review in children with asthma and an RCT in chronic kidney disease patients, both showing moderate beneficial effects. Most studies lacked specific dose and duration reporting, and over half were preclinical or low-evidence-score studies.
- Studied populations: children and adolescents with asthma; patients with non-dialysis chronic kidney disease stage 3-5
Caveats: 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). Many of the included studies did not reach statistical significance — effect may be smaller than the predominant direction suggests. Most studies were preclinical or low-evidence-score (animal or cell models), and the few human studies were small or exploratory.
Generated May 12, 2026