Ingredient

Rhamnosus Lb3

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Source
Not animal-derived
Allergen
No
Role in food
Lactobacillus rhamnosus LB3 is added to foods as a probiotic to potentially support gut …

What it is

Lactobacillus rhamnosus LB3 is a strain of probiotic bacteria. Probiotics are live microorganisms that, when administered in adequate amounts, confer a health benefit on the host. This strain is commonly found in fermented foods like yogurt and kefir.

Why it's used

Lactobacillus rhamnosus LB3 is added to foods as a probiotic to potentially support gut health. It is most frequently found in dairy products such as yogurt and kefir, where it contributes to the fermentation process and provides live and active cultures.

Health notes

Lactobacillus rhamnosus LB3 is generally recognized as safe (GRAS) by the FDA for use in food. Probiotics are being studied for their potential role in digestive health and immune function. International bodies like the WHO and EFSA have also evaluated probiotics, recognizing their potential benefits when consumed in adequate amounts. Research into specific strains like L. rhamnosus LB3 is ongoing, with most studies indicating safety and potential benefits at typical consumption levels.

Allergen info

Lactobacillus rhamnosus LB3 is a bacterium and not derived from any of the 9 FDA major allergens. It does not contain gluten.

Products containing Rhamnosus Lb3

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Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.