Dietary Supplement. For Occasional Heartburn* Acid Defense provides relief form occasional heartburn through a blend of natural alkalizing minerals form goat s milk whey, a broad array of digestive enzymes, plus barley grass, beet and carrot juice concentrates.* Select ingredients are produced through Garden of Life s proprietary Poten-Zyme® fermentation process to make the nutrients more available to the body. This product is made with natural ingredients. Contains no filler ingredients, artificial colors or preservatives. Color and taste may vary from lot to lot. Filled by weight not volume. Settling may occur.