URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Beef, short loin, porterhouse steak, separable lean and fat, trimmed to 1/4" fat, USDA select, cooked, broiled, 1 oz ( 1 serving ) Protein (g) 19.95 Total lipid (fat) (g) 19.83 Carbohydrate, by difference (g) 0 Energy (kcal) 264.35 Sugars, total (g) 0 Fiber, total dietary (g) 0 Calcium, Ca (mg) 6.8 Iron, Fe (mg) 2.33 Magnesium, Mg (mg) 17 Phosphorus, P (mg) 153.85 Potassium, K (mg) 221 Sodium, Na (mg) 53.55 Zinc, Zn (mg) 3.6 Copper, Cu (mg) 0.1 Manganese, Mn (mg) 0.01 Selenium, Se (mcg) 16.49 Vitamin A, IU (IU) 0 Retinol (mcg) 0 Carotene, beta (mcg) 0 Carotene, alpha (mcg) 0 Vitamin E (alpha-tocopherol) (mg) 0.18 Cryptoxanthin, beta (mcg) 0 Lycopene (mcg) 0 Lutein + zeaxanthin (mcg) 0 Vitamin C, total ascorbic acid (mg) 0 Thiamin (mg) 0.08 Riboflavin (mg) 0.18 Niacin (mg) 3.34 Pantothenic acid (mg) 0.25 Vitamin B-6 (mg) 0.29 Folate, total (mcg) 5.95 Vitamin B-12 (mcg) 1.8 Folic acid (mcg) 0 Folate, DFE (mcg_DFE) 5.95 Cholesterol (mg) 56.1 Fatty acids, total saturated (g) 8.04 Fatty acids, total monounsaturated (g) 8.79 Fatty acids, total polyunsaturated (g) 0.85