HealthMap

Dehydroascorbic Acid and GLUT Transport

Based on the principles of cellular nutrition and biochemistry as discussed on Acu-Cell, the transport of vitamin C involves specific mechanisms depending on the chemical state of the nutrient:

• Oxidized Form: Dehydroascorbic acid (DHA) is the oxidized form of vitamin C.
• Transport Mechanism: Unlike reduced ascorbic acid, which typically requires sodium-dependent vitamin C transporters (SVCTs), DHA utilizes GLUT transporters (specifically GLUT1 and GLUT3) to cross the cell membrane.
• Intracellular Conversion: Once inside the cell via GLUT transport, DHA is rapidly reduced back into ascorbic acid by intracellular glutathione and other reducing agents, effectively trapping the vitamin inside the cell.