Excipient in pharmaceutical tablets capsules and chewable formulations. Sweetener and bulking agent in food and confectionery products. Osmotic diuretic in pharmaceutical and medical applications. Ingredient in nutraceutical and oral care products. Reagent and standard material in biochemical and laboratory research.

Its primary purpose is to serve as a sweetener bulking agent and pharmaceutical excipient. In medicine it is also used as an osmotic agent to promote fluid removal and reduce intracranial or intraocular pressure.

D-Mannitol is a naturally occurring sugar alcohol (polyol) found in various fruits vegetables and microorganisms. It is a white powder water-soluble compound with a sweet taste and low hygroscopicity.