Disodium fumarate is widely used as a food additive, primarily functioning as an acidity regulator and flavor enhancer. It helps maintain the desired pH levels in various food products, ensuring stability and improving taste. In the beverage industry, it is often added to soft drinks and powdered drink mixes to balance acidity and enhance flavor profiles. Additionally, it serves as a dough conditioner in baked goods, improving texture and consistency. In pharmaceuticals, it is utilized as an excipient in tablet formulations, aiding in the stability and dissolution of active ingredients. Its role in animal feed as a supplement also supports nutritional balance and promotes health in livestock.