Also known as: Culturelle, Culturelle strain, L. rhamnosus, L. rhamnosus GG, LGG
One of the most researched probiotic strains. Excellent for antibiotic-associated diarrhea and traveler's diarrhea prevention.
During and after antibiotics
Antibiotic users, travelers
We haven’t curated landmark studies for Lactobacillus rhamnosus GGyet — one-click into the primary literature here. PubMed (RCTs) is usually the highest-signal starting point.
Most studied probiotic strain
Consult healthcare provider
Safe
In-depth guides covering Lactobacillus rhamnosus GG — protocols, comparisons, and use cases.
Other ingredients in the Probiotic category.
Formulate Research Team. (2026, August). Lactobacillus rhamnosus GG — Evidence-Based Supplement Guide. Formulate Supplement Encyclopedia. https://app.formulate-health.app/learning/supplements/lactobacillus-rhamnosus-gg
Educational content based on published research and our scoring methodology. Not medical advice — consult a qualified healthcare provider before starting, stopping, or changing supplements, especially if you take medications, are pregnant, or have a medical condition.