Most supplements contain pepsin from porcine (pigs). Betaine HCl from Enzymedica uses a blend of vegetarian protease enzymes that act as pepsin—promoting the breakdown of proteins in an acidic environment, but with an entirely vegetarian approach. Betaine HCl includes Prickly Pear cactus and Olive leaf to help support and maintain a healthy mucosal system in the stomach. It has been shown to exert positive effects on the stomach lining, providing a necessary buffer for the acidity of digestion.