cultivated in Rwanda, had lesser than 1% protein content. The reducing sugar content in the present study (1.74 % 0.07 to 2.50 0.12) was within the ranges quoted in the literature. Dietary fibre ranged from 0.11±0.00 to 0.14 0.00 and was less compared to literature sources. The amount of minerals furnished was quite less from 0.40 0.02 to 0.44 0.07. Mugande and Rutambira 4-160 were the white varieties β carotene content were totally absent while Kwizekumwe and 440170 being the yellow varieties contained β carotene