URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Beef, short loin, top loin, separable lean and fat, trimmed to 1/8" fat, prime, raw, 1 steak, excluding refuse (yield from 1 raw steak, with refuse, weighing 242 g) Protein (g) 43.13 Total lipid (fat) (g) 50.33 Carbohydrate, by difference (g) 0 Energy (kcal) 637.87 Fiber, total dietary (g) 0 Calcium, Ca (mg) 13.62 Iron, Fe (mg) 3.59 Magnesium, Mg (mg) 40.86 Phosphorus, P (mg) 370.01 Potassium, K (mg) 669.65 Sodium, Na (mg) 120.31 Zinc, Zn (mg) 7.13 Copper, Cu (mg) 0.16 Manganese, Mn (mg) 0.03 Selenium, Se (mcg) 39.27 Vitamin A, IU (IU) 0 Retinol (mcg) 0 Vitamin C, total ascorbic acid (mg) 0 Thiamin (mg) 0.2 Riboflavin (mg) 0.32 Niacin (mg) 8.81 Pantothenic acid (mg) 0.73 Vitamin B-6 (mg) 0.89 Folate, total (mcg) 13.62 Vitamin B-12 (mcg) 6.24 Folic acid (mcg) 0 Folate, DFE (mcg_DFE) 13.62 Cholesterol (mg) 152.09 Fatty acids, total saturated (g) 20.61 Fatty acids, total monounsaturated (g) 22.2 Fatty acids, total polyunsaturated (g) 1.82