Inositol refers to a group of molecules (isomers) that are structurally similar to glucose and involved in cellular signaling.[1][2] Inositol is synthesized in the human body, but is also obtained in the diet from foods like citrus fruits, bran, beans, nuts, and seeds.[3][4][5] Inositol is also taken as a dietary supplement. The majority of inositol supplements contain the myo-inositol form, as it is the most plentiful type of inositol found in the body.[6]
What is inositol?
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•Last Updated: May 16, 2025
Inositol refers to a group of glucose-like molecules involved in cellular signaling that are synthesized in the body and obtained from dietary sources such as citrus fruits, bran, beans, nuts, and seeds. Inositol is commonly taken as a dietary supplement, primarily in the myo-inositol form, which is the most abundant type in the body.