From the Manufacturer:
Acid Defense is a natural alkalizing formula designed to support digestive health. Formulated for those occasions when you experience temporary heartburn, acid indigestion or upper GI distress, Acid Defense is a combination of super alkalizing ingredients designed to rapidly restore your body's proper pH and provide reinforcement for alkaline reserves in the body.
Maintaining a balanced pH is one of the most important metabolic functions your body performs, aside from breathing and maintaining a heartbeat. Production of highly acidic gastric juice is a normal function of the stomach. Occasional heartburn represents an imbalance in the digestive system. According to the American Gastrointestinal Association, about 40 million people experience heartburn at least once per week, and roughly 40% of people have heartburn at least once a month. Acid Defense provides alkalizing minerals from goat's milk whey, along with organically grown vegetable juice concentrates. These natural food sources help your body to maintain comfortable pH levels. Additionally, the enzymes in Acid Defense work to support healthy digestion.