Ingredient

Lactobacillus Casei

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Source
Not animal-derived
Allergen
No
Role in food
Lactobacillus casei is added to foods as a probiotic, which is a live microorganism …

What it is

Lactobacillus casei is a type of bacteria that lives in the human gut. It is often added to foods as a live culture. It can be grown in labs for use in food production.

Why it's used

Lactobacillus casei is added to foods as a probiotic, which is a live microorganism thought to benefit health. It is commonly found in yogurt and other fermented dairy products. It can also be found in some dietary supplements.

Health notes

Lactobacillus casei is generally recognized as safe (GRAS) by the FDA for use in food. Some studies suggest that probiotics like L. casei may help with digestive health, but research is ongoing and results can vary. The WHO and EFSA have evaluated probiotics, and JECFA has also reviewed them. Evidence on specific health benefits is mixed and often depends on the strain and the individual.

Allergen info

Lactobacillus casei is not one of the 9 FDA major allergens. It is a bacterium and does not contain gluten.

Products containing Lactobacillus Casei

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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.