| Vegan? Yes | Vegetarian? Yes |
Classifications are made based on the available commercial supply of the ingredient, and are made based on the criteria on our classifications page.
Commercially available dl-methionine is vegan and vegetarian.
Methionine is an essential amino acid. It is produced commercially using fermentation or synthesized from acrolein or methyl mercaptan. The former is manufactured from propene. Methyl mercaptan is produced from methanol.