L-Tagatose is widely used as a low-calorie sweetener in the food and beverage industry. It provides a similar sweetness to sucrose but with only a fraction of the calories, making it suitable for diabetic and weight management products. It is also utilized in dairy products, baked goods, and cereals to enhance flavor without significantly increasing sugar content. Additionally, L-Tagatose acts as a prebiotic, promoting the growth of beneficial gut bacteria, which supports digestive health. Its low glycemic index makes it an ideal ingredient in sugar-free and low-carb products. Furthermore, it is employed in pharmaceuticals as an excipient to improve the taste of medications.