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Is Yeast vegan?

Yeast

Vegan

Yeast is a microscopic unicellular fungus belonging to the kingdom Fungi, distinct from plants and animals. Various yeast species are used in baking, brewing, and the production of nutritional supplements. It is cultivated through fermentation of sugars and is not of animal origin.

Also known as baker's yeast, brewer's yeast, nutritional yeast, Saccharomyces cerevisiae
Last reviewed 16 April 2026

Classifications are made to the best of our knowledge based on available scientific and regulatory sources. We cannot guarantee the accuracy of every entry, errors in the sources we draw from can always occur. This tool also cannot account for cross-contamination, which depends entirely on individual suppliers and producers. If you believe a classification is incorrect, you can report an issue.