D-Iditol is primarily used in the food industry as a low-calorie sweetener and humectant. It helps retain moisture in products like baked goods, confectionery, and chewing gum, extending their shelf life. In pharmaceuticals, it serves as an excipient in tablets and syrups, providing stability and improving texture. Additionally, D-Iditol is utilized in cosmetic formulations for its moisturizing properties, enhancing skin hydration in creams and lotions. Its non-cariogenic nature also makes it suitable for oral care products such as toothpaste and mouthwash.