Potassium Bicarbonate is a white, crystalline salt that is commonly used as a dietary supplement and a food additive. It is a source of potassium, an essential mineral that helps regulate fluid balance, muscle contractions, and nerve signals in the body. Potassium Bicarbonate is often used in baking as a leavening agent, helping dough to rise. In addition to its culinary uses, Potassium Bicarbonate is also utilized in agriculture to improve soil quality and as a mild fungicide. It can be found in some antacids, providing relief from heartburn by neutralizing stomach acid.