Ingredient

Pure Nutritional Yeast

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Source
Not animal-derived
Allergen
No
Role in food
Manufacturers add nutritional yeast for its savory, cheesy, nutty flavor. It is often used …

What it is

Nutritional yeast is a deactivated yeast, typically *Saccharomyces cerevisiae*. It is grown on molasses and then harvested, washed, and dried. The drying process makes it inactive, so it won't cause bread to rise.

Why it's used

Manufacturers add nutritional yeast for its savory, cheesy, nutty flavor. It is often used as a flavor enhancer in vegan and vegetarian foods, particularly in cheese substitutes, sauces, and snacks. It can also add a boost of B vitamins.

Health notes

Nutritional yeast is Generally Recognized As Safe (GRAS) by the FDA. It is a good source of B vitamins, which are essential for energy metabolism. While not a cure, some studies suggest B vitamins may play a role in mood and cognitive function. JECFA and EFSA have evaluated yeast and its extracts.

Allergen info

Nutritional yeast is not derived from any of the 9 FDA major allergens. It is typically gluten-free, but check product labels for cross-contamination if celiac disease is a concern.

Products containing Pure Nutritional Yeast

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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.