Is Histidine vegetarian?

Histidine is an essential amino acid used in the biosynthesis of proteins, containing an imidazole side chain that makes it positively charged at physiological pH. It can be produced by fermentation, chemical synthesis, or extracted from protein hydrolysates of plant, animal, or feather sources.

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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.