Caution: Sprinkle this savory seasoning with care
Nutritional yeast might trigger side effects, interfere with medications, or cause flare-ups of certain conditions.
- Reviewed by Nancy Oliveira, MS, RD, LDN, CDCES, Contributor; Editorial Advisory Board Member, Harvard Health Publishing

Health-conscious folks have long sprinkled nutritional yeast flakes - a vegan version of parmesan cheese - on popcorn, pasta, salad, and more to provide an umami-rich (savory) flair. But you should know that this condiment sometimes functions like a supplement.
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About the Reviewer
Nancy Oliveira, MS, RD, LDN, CDCES, Contributor; Editorial Advisory Board Member, Harvard Health Publishing
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