D-Chiro-InositolSupports insulin function and glucose regulation.* This stereoisomer of inositol is a critical second messenger mediating cellular responses to insulin. Embedded in cell membranes, D chiro inositol is part of a glycosyl phosphatidylinositol complex that is hydrolyzed into two bioactive molecules upon exposure to insulin. These molecules regulate glucose disposal by activating pathways in which glucose is either converted to glycogen for storage or