Ingredient

Lactobacillus Delbrueckii Subsp

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Source

Not animal-derived

Allergen

Role in food

This bacterium is primarily used as a starter culture in the fermentation of milk …

What it is

Lactobacillus delbrueckii subsp. Bulgaricus is a type of bacteria commonly used in food production. It is a lactic acid bacterium that ferments lactose (milk sugar) into lactic acid. This process is essential for making yogurt and other fermented dairy products.

Why it's used

This bacterium is primarily used as a starter culture in the fermentation of milk to produce yogurt, kefir, and cheese. Its activity contributes to the characteristic tangy flavor and thick texture of these foods. It is also sometimes found in probiotic supplements.

Health notes

Lactobacillus delbrueckii subsp. Bulgaricus is generally recognized as safe (GRAS) by the FDA for use in food. It is a common inhabitant of the human gut and is considered a beneficial probiotic. International bodies like JECFA have evaluated it. Research suggests it may help with lactose digestion and support gut health, though more studies are needed to confirm these benefits.

Allergen info

Not a major allergen. It is a bacterium and not derived from any of the nine FDA major allergens. It does not contain gluten.

Products containing Lactobacillus Delbrueckii Subsp

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Marketing Instincts, Inc Dip, Cucumber Garlic & Dill Dips & Salsa 107kcal 7.1Protein 7.1Fat 7.1Carbs Danone US, LLC Kefir, Chocolate Yogurt 79kcal 2.9Protein 2.5Fat 12.1Carbs Maple Hill Creamery Drinkable Yogurt, Coffee Yogurt High in saturated fat — 50% DV per serving 85kcal 3.3Protein 4.4Fat 8.8Carbs Maple Hill Creamery Mango Peach Drinkable Yogurt, Mango Yogurt High in saturated fat — 45% DV per serving 88kcal 3.3Protein 4.1Fat 9.9Carbs Danone US, LLC Organic Kefir, Raspberry Yogurt 62kcal 2.9Protein 0.8Fat 10.8Carbs Danone US, LLC Organic Whole Milk Kefir, Cherry Yogurt High in saturated fat — 23% DV per serving 88kcal 2.9Protein 2.9Fat 12.1Carbs The Bronnenkant Corporation Ginger Organic Kvass, Ginger Other Drinks 4kcal 0Protein 0Fat 0.8Carbs Melanz, LLC Blueberry Halal Creamery Low-Fat Grass Fed Yogurt, Blueberry Yogurt 80kcal 5.3Protein 1Fat 12Carbs Melanz, LLC Strawberry Halal Creamery Low-Fat Grass Fed Yogurt, Strawberry Yogurt 80kcal 5.3Protein 1Fat 12Carbs Melanz, LLC Plain Halal Creamery Low-Fat Grass Fed Yogurt, Plain Yogurt 60kcal 6Protein 1.3Fat 6.7Carbs Melanz, LLC Vanilla Halal Creamery Low-Fat Grass Fed Yogurt, Vanilla Yogurt 80kcal 6Protein 1Fat 11.3Carbs Melanz, LLC Plain Halal Creamery Whole Milk Yogurt, Plain Yogurt 80kcal 6Protein 3.3Fat 7.3Carbs

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.