Myo-Inositol and D-chiro Inositol Myo-inositol and D-chiro inositol are both forms of inositol, a type of sugar alcohol. Found abundantly in nature, these compounds play crucial roles in various cellular processes within the human body. Structurally, Myo-inositol and D-chiro inositol differ in their arrangement of atoms. Myo-inositol is the most prevalent form in the human body, while D-chiro inositol is a less common but equally important variant. Inositol, categorized as a sugar type, exerts influence over the body's insulin response and various hormones linked to mood.