URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Beef, short loin, porterhouse steak, separable lean and fat, trimmed to 1/8" fat, choice, raw, 1 lb Protein (g) 81.56 Total lipid (fat) (g) 91.08 Carbohydrate, by difference (g) 0 Energy (kcal) 1170.29 Fiber, total dietary (g) 0 Calcium, Ca (mg) 27.22 Iron, Fe (mg) 8.8 Magnesium, Mg (mg) 86.18 Phosphorus, P (mg) 762.05 Potassium, K (mg) 1338.12 Sodium, Na (mg) 235.87 Zinc, Zn (mg) 14.29 Copper, Cu (mg) 0.35 Manganese, Mn (mg) 0.05 Selenium, Se (mcg) 73.94 Vitamin A, IU (IU) 0 Retinol (mcg) 0 Vitamin C, total ascorbic acid (mg) 0 Thiamin (mg) 0.45 Riboflavin (mg) 0.77 Niacin (mg) 15.92 Pantothenic acid (mg) 1.36 Vitamin B-6 (mg) 1.68 Folate, total (mcg) 27.22 Vitamin B-12 (mcg) 12.25 Folic acid (mcg) 0 Folate, DFE (mcg_DFE) 27.22 Cholesterol (mg) 308.45 Fatty acids, total saturated (g) 36.38 Fatty acids, total monounsaturated (g) 40.55 Fatty acids, total polyunsaturated (g) 3.36