Sixty male rats with the age of two months, weight 160-170 g were divided into three groups i.e A, B and C each of 20 animals. Each rat was located in one cage. Group A was given stock-diet, group B and group C were given either stock-diet 44 % plus 56 % cane sugar or stock-diet 44 % plus 56 % brown sugar. Diet and drinking water were given daily ad libitum. The experiment lasted for three months. Body weights and blood glucose of all animals were examined at the end of experiment.Results showed that the average body weights of the three groups did not differ significantly (p > 0.05). Blood glucose of stock-diet group differ significantly with that of brown sugar group (p < 0.01) however blood glucose of brown sugar and cane sugar did not differ significantly. Food consumption of the three groups was found significantly different. The highest was found in brown sugar group followed by cane sugar group and stock-diet group, however, the correlation between food consumption and blood glucose level was not positive. It is concluded that the bioavailability of cane and brown sugar was almost similar.