Where D-chiro-inositol Is From? The inositols occur in nature mainly in cereal, Nüsse, pulses and fruit. D-Chiro-inositol, which is among the inositols the one with the most relevant biological activity, is contained in buckwheat and, in a moderate quantity also in carob, which has turned into its main source of extraction. What is D-Chiro-inositol Powder? D-chiro-Inosit (DCI) powder is an optically active one …