The blood glucose responses to five Ghanaian carbohydrate sources, unripe plantain, Ga kenkey, Gari, rice and yam, as part of mixed meals were determined in ten healthy young nondiabetic adult males aged 25.6 +/- 2.6 years with a BMI of 20.9 +/- 2.4 kg/m2. Ga kenkey showed the least changes in blood glucose responses as measured by the glycemic index. Yam exhibited the least favourable blood glucose responses. Significant difference were observed between the glycemic indices of kenkey and yam; Kenkey and gari (p < 0.01); rice and yam, plantain and yam (p < 0.05). Further studies of these carbohydrate sources are required in diabetics to ascertain their suitability as carbohydrate sources in Ghanaian diabetics.