What are the ingredients in SAMe sourced from? Education Team November 05, 2023 09:09 Updated Follow Ingredient Source SAMe (S-adenosyl-L-methionine) Fermentation of Saccharomyces cerevisiae yeast Related articles Does SAMe contain GMOs? What are the warnings or side effects of using SAMe? Who is SAMe intended for? Does SAMe contain gluten or grains? What is the purpose of each ingredient in SAMe? Comments 0 comments Article is closed for comments.