Lactitol powder is a sugar alcohol derived from lactose, the sugar found in milk. It is classified as a low-calorie sweetener and bulking agent, widely utilized in the food and pharmaceutical industries. The chemistry of lactitol involves the hydrogenation of lactose, which results in a compound that retains sweetness while providing fewer calories—approximately 2 calories per gram compared to sugar's 4 calories per gram. This makes lactitol an appealing option for individuals managing calorie intake, such as those with diabetes or those following a low-sugar diet. The properties of lactitol powder make it an excellent ingredient for a variety of applications. Its sweetening power, estimated to be about 30 to 40% that of sucrose, allows it to effectively enhance flavor without adding significant calories or affecting blood glucose levels. Besides its sweetening capacity, lactitol also serves as a bulking agent, which is especially useful in formulating low-calorie and sugar-free food products. It provides a desirable texture and mouthfeel while improving the overall quality of baked goods, confectioneries, and dairy products. Health-conscious consumers increasingly favor products with clean labels, leading to a rise in the demand for alternative sweeteners. Lactitol fits well into this trend due to its natural origins and minimal processing requirements. Additionally, lactitol is recognized as safe and is well-tolerated by most individuals, though excessive consumption may lead to gastrointestinal discomfort, a common characteristic of many sugar alcohols. Its classification as a Generally Recognized As Safe (GRAS) ingredient by regulatory agencies adds to its appeal for food manufacturers. The pharmaceutical industry also leverages lactitol powder as an excipient in drug formulations. Its high solubility facilitates the delivery of active pharmaceutical ingredients, making it a valuable component in various delivery systems, including tablets and powders. Furthermore, lactitol has prebiotic properties, promoting gut health by stimulating the growth of beneficial gut bacteria. In summary, lactitol powder is a versatile ingredient that marries low-calorie sweetness with functional benefits across food and pharmaceutical applications. As consumer preferences shift towards healthier, more sustainable options, lactitol stands out due to its natural origin, multifunctional properties, and safety profile. Its growing presence in product formulations speaks to a broader commitment to enhancing food and health outcomes, positioning lactitol as a credible ingredient for the future.