Best Supplements for Improved Intestinal Barrier Function
Ranked by research evidence. Compare 86 supplements across 139 papers from the biomedical literature, with effect direction, evidence strength, and dose range for each.
Top picks by evidence
- Low evidence5 studies
Across 3 studies, all reported beneficial moderate-sized effects on intestinal barrier function, with 2 of 3 reaching statistical significance. The evidence is limited to animal models (piglets, sows, lambs) and includes studies where L. amylovorus was not the sole intervention, making the specific effect uncertain. No consistent dose or duration data were available.
- Low evidence4 studies
Across 4 studies, all reported beneficial effects on intestinal barrier function, with predominantly moderate effect sizes. No studies reported statistically significant findings, and no specific dose or form was consistently studied. The evidence is drawn from systematic reviews, in vitro, and animal models, with limited clinical data.
- Very low evidence8 studies
Across 5 studies, all reported beneficial effects on intestinal barrier function, with effect sizes predominantly moderate. The evidence is drawn entirely from reviews and animal/cell studies, with no human trial data available. No consistent dose, form, or population could be identified due to insufficient reporting.
- Very lowLactobacillus brevis SBC8803Across 5 studies, all reported beneficial effects on intestinal barrier function, with effect sizes predominantly moderate. The evidence is drawn entirely from reviews and animal/cell studies, with no human trial data available. No consistent dose, form, or population could be identified due to insufficient reporting.8 beneficial8 studies
- LowLactobacillus amylovorusAcross 3 studies, all reported beneficial moderate-sized effects on intestinal barrier function, with 2 of 3 reaching statistical significance. The evidence is limited to animal models (piglets, sows, lambs) and includes studies where L. amylovorus was not the sole intervention, making the specific effect uncertain. No consistent dose or duration data were available.5 beneficial5 studies
- Very lowSaccharomyces cerevisiaeAcross 3 studies, all report beneficial effects on intestinal barrier function, with moderate to large effect sizes. However, the evidence is entirely from animal models (broilers, mice) and in vitro cell studies—no human trials are available. Doses and durations are not consistently reported.5 beneficial5 studies
- LowBifidobacterium animalis subsp. lactis BB-12Across 4 studies, all reported beneficial effects on intestinal barrier function, with predominantly moderate effect sizes. No studies reported statistically significant findings, and no specific dose or form was consistently studied. The evidence is drawn from systematic reviews, in vitro, and animal models, with limited clinical data.4 beneficial4 studies
- Very lowLactobacillus rhamnosusAcross 4 studies, all reported beneficial moderate-sized effects on improving intestinal barrier function, but none of the studies specifically tested Lactobacillus rhamnosus; the studies examined other probiotics or postbiotics (L. paracei, L. plantarum, SCFAs, multi-strain). The effect size was consistently moderate across studies. No dose or population data were extractable for L. rhamnosus.4 beneficial4 studies