Assure Guard Gold by Arenus is one of the most complete digestive supplements on the market. This formula is a blend of Assure Guard and Assure Plus in one easy-to-give pelleted supplement. Its main components are probiotics, prebiotics, and psyllium. Probiotics add good bacteria into the gut, prebiotics help to feed the good bacteria and psyllium helps to move sand out of the digestive tracts as well as promoting overall digestive health and regularity.