Rebaudioside D is primarily used as a high-intensity sweetener in the food and beverage industry. It is valued for its ability to provide sweetness without the calories associated with sugar, making it a popular choice for low-calorie and sugar-free products. This compound is often incorporated into soft drinks, dairy products, baked goods, and confectionery to enhance sweetness while maintaining a clean taste profile. Additionally, it is used in dietary supplements and health-focused products due to its non-glycemic properties, making it suitable for individuals managing diabetes or those on low-carbohydrate diets. Its stability under various processing conditions, such as heat and pH changes, further extends its application in a wide range of food formulations.