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Is Duodenum Substances vegan?

Duodenum Substances

Not Vegan

Duodenum substances are extracts derived from the duodenal section of the digestive tracts of cattle and pigs. They are used in some vitamin tablets and pharmaceutical preparations.

Also known as Duodenal extract, Intestinal extract
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.