URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Mountain yam, hawaii, cooked, steamed, with salt, 1 cup, cubes Protein (g) 2.51 Total lipid (fat) (g) 0.12 Carbohydrate, by difference (g) 28.99 Energy (kcal) 118.9 Calcium, Ca (mg) 11.6 Iron, Fe (mg) 0.62 Magnesium, Mg (mg) 14.5 Phosphorus, P (mg) 58 Potassium, K (mg) 717.75 Sodium, Na (mg) 359.6 Zinc, Zn (mg) 0.46 Copper, Cu (mg) 0.19 Manganese, Mn (mg) 0.41 Selenium, Se (mcg) 1.3 Vitamin A, IU (IU) 0 Retinol (mcg) 0 Vitamin C, total ascorbic acid (mg) 0 Thiamin (mg) 0.12 Riboflavin (mg) 0.02 Niacin (mg) 0.19 Pantothenic acid (mg) 0.7 Vitamin B-6 (mg) 0.3 Folate, total (mcg) 17.4 Vitamin B-12 (mcg) 0 Folic acid (mcg) 0 Folate, DFE (mcg_DFE) 17.4 Cholesterol (mg) 0 Fatty acids, total saturated (g) 0.03 Fatty acids, total monounsaturated (g) 0 Fatty acids, total polyunsaturated (g) 0.05