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Evidence-Based Supplement Research
Evidence-Based Supplement Research

Lactobacillus plantarum LP01 and Reduced Gastrointestinal Symptoms

Research synthesisLow evidenceModerate effect3 studies · 3 beneficial · 0 neutral · 0 harmful

Across 3 studies, all reported beneficial effects of Lactobacillus plantarum LP01 on reducing gastrointestinal symptoms, with moderate effect sizes in 2 studies and a small effect in the third. Two of the three studies found statistically significant improvements. The evidence primarily comes from clinical populations undergoing digestive surgery or bowel preparation, using a probiotic mixture containing LP01 at a dose of 1 billion living cells/day in one study.

  • Effective dose range: 1 billion living cells/day
  • Studied populations: patients undergoing digestive surgery, patients undergoing bowel preparation

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). Two of the three studies evaluated LP01 in combination with other probiotic strains (Lactococcus lactis, Lactobacillus delbrueckii), making it difficult to isolate the specific effect of LP01 alone.

Generated May 12, 2026
Doses used in studies
  • cells/day: 1 billion (median 1 billion, IQR 1 billion1 billion) 1 study
Safety in these studies
3 of 3 papers
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