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What is Lactitol and explain in detail?
Lactitol is a sugar alcohol used as a replacement bulk sweetener for low calorie foods with 30–40% of the sweetness of sucrose. It is also used medically as a laxative. Lactitol is produced by two manufacturers, Danisco and Purac Biochem.

Applications
Lactitol is used in a variety of low food energy or low fat foods. High stability makes it popular for baking. It is used in sugar-free candies, cookies (biscuits), chocolate, and ice cream, with a sweetness of 30–40% that of sucrose. Lactitol also promotes colon health as a prebiotic. Because of poor absorption, lactitol only has 2–2.5 kilocalories (8.4–10.5 kilojoules) per gram, compared to 4 kilocalories (17 kJ) per gram for typical saccharides. Hence, lactitol is about 60% as caloric as typical saccharides.

Medical
Lactitol is listed as an excipient in some prescription drugs.Lactitol is a laxative and is used to prevent or treat constipation, e.g., under the trade name Importal.In February 2020, Lactitol was approved for use in the United States as an osmotic laxative for the treatment of chronic idiopathic constipation (CIC) in adults.Lactitol in combination with Ispaghula husk is an approved combination for idiopathic constipation as a laxative and is used to prevent or treat constipation.

Safety and health
Lactitol, erythritol, sorbitol, xylitol, mannitol, and maltitol are all sugar alcohols. The U.S. Food and Drug Administration (FDA) classifies sugar alcohols as "generally recognized as safe" (GRAS). They are approved as food additives, and are recognized as not contributing to tooth decay or causing increases in blood glucose. Lactitol is also approved for use in foods in most countries around the world.Like other sugar alcohols, lactitol causes cramping, flatulence, and diarrhea in some individuals who consume it