Alginic Acid is a natural polysaccharide derived from the cell walls of brown seaweeds, such as kelp. It is commonly used as a thickening agent, stabilizer, and emulsifier in various food products, including ice cream and salad dressings. Alginic acid is known for its ability to form gels when mixed with water, making it useful in both culinary and industrial applications. In addition to its food uses, alginic acid has medical applications. It is often found in over-the-counter products for heartburn and gastroesophageal reflux disease, as it can help form a protective barrier in the stomach. Its biocompatibility also makes it valuable in wound dressings and drug delivery systems.