URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Beef, short loin, porterhouse steak, separable lean and fat, trimmed to 1/8" fat, all grades, raw, 1 oz Protein (g) 5.33 Total lipid (fat) (g) 5.25 Carbohydrate, by difference (g) 0 Energy (kcal) 70.02 Fiber, total dietary (g) 0 Calcium, Ca (mg) 1.7 Iron, Fe (mg) 0.56 Magnesium, Mg (mg) 5.39 Phosphorus, P (mg) 48.2 Potassium, K (mg) 84.77 Sodium, Na (mg) 15.03 Zinc, Zn (mg) 0.9 Copper, Cu (mg) 0.02 Manganese, Mn (mg) 0 Selenium, Se (mcg) 4.65 Vitamin A, IU (IU) 0 Retinol (mcg) 0 Vitamin C, total ascorbic acid (mg) 0 Thiamin (mg) 0.03 Riboflavin (mg) 0.05 Niacin (mg) 1 Pantothenic acid (mg) 0.09 Vitamin B-6 (mg) 0.11 Folate, total (mcg) 1.7 Vitamin B-12 (mcg) 0.77 Folic acid (mcg) 0 Folate, DFE (mcg_DFE) 1.7 Cholesterol (mg) 18.14 Fatty acids, total saturated (g) 2.1 Fatty acids, total monounsaturated (g) 2.32 Fatty acids, total polyunsaturated (g) 0.2