Primary Research · 2012
Clinical trial: Lactobacillus plantarum 299v (DSM 9843) improves symptoms of irritable bowel syndrome
Ducrotté et al. · World Journal of Gastroenterology, 2012
Key finding
214 patients with moderate-to-severe IBS. LP299V at 10⁹ CFU/day significantly reduced abdominal pain severity and frequency over 4 weeks.
Read the paper
Open on PubMedhttps://pubmed.ncbi.nlm.nih.gov/22969234/
Cited in 2 guides
Review
Probiotic Strains for IBS: Which Actually Have Evidence
Most probiotic marketing ignores strain specificity. For IBS, three strains have real clinical evidence — and dozens of common ones have none.
Guide
What to Look for in a Probiotic — Evidence-Based 2026
Strain specificity beats CFU count every time. Learn the 3 label clues that separate clinically backed probiotics from marketing noise in 2026.
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