D-Mannose
A simple sugar found in certain foods, such as cranberries. It’s been suggested that D-mannose contributes to the beneficial effects cranberries have in the treatment of urinary tract infections. Mannose is promoted as a “glyconutrient” by certain multi-level marketing companies (such as Mannatech), despite the lack of evidence for such claims.
D-mannose is related to the sugar alcohol mannitol.