Mannose is a simple sugar, specifically a type of monosaccharide, that is found in various fruits and plants. It plays a crucial role in human metabolism and is involved in the formation of glycoproteins, which are essential for cell communication and immune function. In addition to its natural occurrence, mannose is often used as a dietary supplement, particularly for supporting urinary tract health. Some studies suggest that it may help prevent certain types of urinary tract infections by inhibiting the adhesion of bacteria to the urinary tract lining.