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The hypoglycaemic effect of chard leaves (Beta vulgaris L. var. cicla) in normal and alloxan-induced diabetic rabbits was investigated. Blood glucose levels were determined after oral administration of various doses of aqueous and methanolic extracts of chard. In normal rabbits, 2gkg−1 aqueous chard extract significantly (P < 0.01) reduced blood glucose levels 4h after administration. In diabetic rabbits, 2, 4 and 8g kg−1 aqueous chard extract had a significant (P < 0.1) antihyperglycaemic effect. Methanolic extracts of chard had no significant effect on blood glucose in either group.
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Yanardağ et al. (1998) studied this question.
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