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Diet and nutrition

Caution: Sprinkle this savory seasoning with care

Nutritional yeast might trigger side effects, interfere with medications, or cause flare-ups of certain conditions.

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An open glass jar on a counter surface containing flakes of nutritional yeast, with a wood spoon in the flakes.

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

photo of Nancy Oliveira, MS, RD, LDN, CDCES

Nancy Oliveira, MS, RD, LDN, CDCES, Contributor; Editorial Advisory Board Member, Harvard Health Publishing

Nancy Oliveira is a registered dietitian and certified diabetes educator. She received a master of science in nutrition communications from Tufts University, and completed her clinical nutrition internship at Beth Israel Deaconess Medical Center. Currently she … See Full Bio
View all posts by Nancy Oliveira, MS, RD, LDN, CDCES
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