Ingredient

Nutritional Yeast Flakes

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Source
Not animal-derived
Allergen
No
Role in food
Manufacturers add nutritional yeast flakes for their savory, umami flavor, often used as a …

What it is

Nutritional yeast flakes are deactivated yeast, typically *Saccharomyces cerevisiae*. They are grown on molasses or other sugary substrates, then harvested, washed, and dried. The drying process deactivates the yeast, making it safe for consumption and giving it a flaky texture and cheesy, nutty flavor.

Why it's used

Manufacturers add nutritional yeast flakes for their savory, umami flavor, often used as a cheese substitute in vegan and vegetarian dishes. They can also add a boost of B vitamins. You'll find them in crackers, soups, sauces, and plant-based meat alternatives.

Health notes

Nutritional yeast is generally recognized as safe (GRAS) by the FDA. It is a good source of B vitamins, including thiamin, riboflavin, niacin, and B12, though B12 is often added through fortification. JECFA and EFSA have evaluated yeast and its extracts, and have established acceptable daily intakes for yeast extracts. There are no widespread controversies regarding its consumption at typical dietary levels.

Allergen info

Nutritional yeast is not derived from any of the 9 FDA major allergens. It is also gluten-free.

Products containing Nutritional Yeast Flakes

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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.