Monocalcium phosphate is a white crystalline powder used as a food additive, which works as a leavening agent in baked goods. It is often used in combination with baking soda to create a chemical reaction that releases carbon dioxide, causing dough or batter to rise. Monocalcium phosphate is also used as a food fortifier, providing a source of phosphorus, calcium, and other minerals. It is commonly found in baking powders, cake mixes, and self-rising flour. Monocalcium phosphate is generally recognized as safe by the FDA and is widely used in the food industry.