Ingredient

Bifidobacterium lactis

Source
Not animal-derived
Allergen
No
Role in food
B. lactis is added to foods as a live culture to provide probiotic benefits. …

What is Bifidobacterium lactis?

Bifidobacterium lactis is a type of bacteria that is naturally found in the human gut. It is commonly used as a probiotic, meaning it is a live microorganism that, when administered in adequate amounts, confers a health benefit on the host. It is often cultured and added to foods.

Is Bifidobacterium lactis vegan?

Bifidobacterium lactis is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Bifidobacterium lactis a major allergen?

Bifidobacterium lactis itself is not one of the 14 major allergens that must be declared on UK food labels.

What is Bifidobacterium lactis used for?

B. lactis is added to foods as a live culture to provide probiotic benefits.

Is Bifidobacterium lactis safe?

Bifidobacterium lactis is not an authorised food additive in the UK.

Why it's used

B. lactis is added to foods as a live culture to provide probiotic benefits. It is frequently found in fermented dairy products like yogurts and kefir, as well as in some non-dairy alternatives and supplements. Its presence contributes to the characteristic tangy flavour of fermented foods.

Health notes

Bifidobacterium lactis is not an authorised food additive in the UK. It is considered a live micro-organism used for its potential probiotic effects. Research into the health effects of probiotics is ongoing, with some studies suggesting potential benefits for gut health. However, scientific consensus on specific health outcomes can vary, and the effects may depend on the strain and dosage. EFSA has evaluated various probiotic strains, but specific regulatory evaluations for B. lactis in food are complex due to its nature as a live culture rather than a traditional additive.

Allergen info

Bifidobacterium lactis itself is not one of the 14 major allergens that must be declared on UK food labels. However, it is often cultured in a milk-based medium, so the final product may contain milk, which is a major allergen.

Foods that contain Bifidobacterium lactis

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Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

Last updated: 17 October 2026

Note: This site presents label data from Open Food Facts for general information. It is not medical advice. Check the package label; formulations change.