Research synthesisVery low evidenceModerate effect4 studies · 4 beneficial · 0 neutral · 0 harmful
Across 4 studies, all reported beneficial effects on reduced inflammation, with effect sizes ranging from small to moderate. A meta-analysis (n=25 RCTs) found a small but statistically significant reduction in C-reactive protein (CRP) of -0.99 mg/L. The evidence base is very small and dominated by animal or in vitro studies, limiting applicability to humans.
- Studied populations: human monocytes (in vitro), pregnant sows, weaned lambs
Caveats: Evidence base is small (only 4 studies) — conclusions should be considered preliminary. Most studies are non-human (animal or in vitro), and the only human-relevant evidence comes from a meta-analysis of postbiotics (not specifically Lactobacillus amylovorus). The meta-analysis reported a small effect on CRP, but direct attribution to Lactobacillus amylovorus is unclear. 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).
Generated May 12, 2026