Effects of chard (Beta vulgaris L. var cicla) on the liver of the diabetic rats: a morphological and biochemical study. Ozsoy-Sacan O, Karabulut-Bulan O, Bolkent S, Yanardag R, Ozgey Y. Chard (Beta vulgaris L. var cicla) is one of the medicinal herbs used by diabetics in Turkey.It has been reported to reduce blood glucose. We have investigated the effect of chard extracts on the liver by biochemical and morphological investigation.hard (Beta vulgaris L. var cicla) is one of the medicinal herbs used by diabetics in Turkey.