Gastroesophageal upset is very common and can have a significant impact on quality of life, and data indicate that its prevalence is on the rise. According to a systematic review of the scientific literature, 18 to 28 percent of the U.S. population experiences some form of gastric distress. Raft-forming alginate When alginic acid and potassium bicarbonate in Esophageal Guardian come into contact with gastric acids, alginic acid forms a gel, and potassium bicarbonate produces bubbles, which are then trapped in that gel. This protective, temporary foam barrier (or raft) between the stomach and the esophagus. This helps protect your esophageal tissue from harsh stomach acids: alginate-raft formulations have been shown to relieve gastric discomfort in clinical studies. Maximum support for delicate esophageal tissues This formula contains calcium and magnesium carbonate to provide maximum support for esophageal comfort. Plus, Esophageal Guardian also features pomegranate and strawberry extracts to combat oxidative stress, provide gastro-protective benefits and help encourage a healthy inflammatory response. In a preclinical study, strawberry extract encouraged stomach tissue health by inhibiting oxidative stress and gastric lipid oxidation. Esophageal Guardian?s ingredients begin to provide relief in less than one minute, but last up to 4 hours.