Sodium alginate is widely used in the food industry as a thickening, gelling, and stabilizing agent. It is commonly found in products like ice cream, yogurt, and salad dressings to improve texture and prevent separation. In the pharmaceutical industry, it is utilized in wound dressings and drug delivery systems due to its biocompatibility and ability to form gels. Additionally, it is employed in the textile industry for printing and dyeing fabrics. Sodium alginate also plays a role in biotechnology for cell encapsulation and tissue engineering applications. Its versatility and safety make it a valuable ingredient across various fields.