URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Potatoes, o'brien, home-prepared, 1 cup Protein (g) 4.56 Total lipid (fat) (g) 2.48 Carbohydrate, by difference (g) 30.01 Energy (kcal) 157.14 Calcium, Ca (mg) 69.84 Iron, Fe (mg) 0.91 Magnesium, Mg (mg) 34.92 Phosphorus, P (mg) 97 Potassium, K (mg) 516.04 Sodium, Na (mg) 420.98 Zinc, Zn (mg) 0.58 Copper, Cu (mg) 0.25 Manganese, Mn (mg) 0.23 Selenium, Se (mcg) 2.33 Vitamin A, IU (IU) 933.14 Vitamin C, total ascorbic acid (mg) 32.4 Thiamin (mg) 0.15 Riboflavin (mg) 0.11 Niacin (mg) 1.96 Pantothenic acid (mg) 0.85 Vitamin B-6 (mg) 0.41 Folate, total (mcg) 15.52 Vitamin B-12 (mcg) 0 Folic acid (mcg) 0 Folate, DFE (mcg_DFE) 15.52 Cholesterol (mg) 7.76 Fatty acids, total saturated (g) 1.55 Fatty acids, total monounsaturated (g) 0.67 Fatty acids, total polyunsaturated (g) 0.11