Lactobacillus plantarum LP01 and Improved Stool Formation

Across 3 studies, all reported beneficial moderate-sized effects of Lactobacillus plantarum LP01 (often combined with other strains) on improved stool formation, primarily in middle-aged adults with chronic intestinal disorders or undergoing digestive surgery. The most-studied population was outpatients with gastrointestinal complaints or surgical recovery, but doses and study durations were not consistently reported. Effect sizes were consistently moderate across all studies.

• Studied populations: Outpatients with chronic intestinal disorders, post-surgical patients, and individuals undergoing bowel preparation (mean age 55-58 years).

Caveats: Evidence base is small (only 3 studies) — conclusions should be considered preliminary. 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). All studies tested LP01 in combination with other probiotic strains (Lactococcus lactis and Lactobacillus delbrueckii), making it impossible to attribute the effect solely to Lactobacillus plantarum LP01. Study durations and dosing were not consistently reported, limiting dose-response conclusions.