The body uses stomach acid to digest food. There are times when the amount of stomach acid becomes excessive, so it is likely to cause interference with the digestive system. In addition to changing your lifestyle, a variety of natural ingredients may be able to help relieve your stomach acid symptoms. Gastric acid can go up into the esophagus due to the valve between the esophagus and stomach not functioning properly. This condition is called GERD (gastroesophageal reflux disease). Symptoms caused by GERD include chest pain or heartburn, difficulty swallowing, the mouth feels sour / bitter because stomach acid rises to the esophagus, and the stomach feels uncomfortable. The exact cause of the weakening of the valve between the lower esophagus and stomach is not yet clearly known, but there are several things that can increase a person's risk of GERD, including: Certain medical conditions, such as esophagitis (inflammation of the esophagus), gastritis (inflammation of the stom...