URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Beef, plate, outside skirt steak, separable lean only, trimmed to 1/4" fat, all grades, raw, 1 oz Protein (g) 5.56 Total lipid (fat) (g) 2.54 Carbohydrate, by difference (g) 0 Energy (kcal) 46.78 Sugars, total (g) 0 Fiber, total dietary (g) 0 Calcium, Ca (mg) 2.55 Iron, Fe (mg) 0.66 Magnesium, Mg (mg) 5.67 Phosphorus, P (mg) 58.4 Potassium, K (mg) 109.43 Sodium, Na (mg) 19.84 Zinc, Zn (mg) 1.41 Copper, Cu (mg) 0.02 Selenium, Se (mcg) 4.42 Vitamin A, IU (IU) 0 Retinol (mcg) 0 Carotene, beta (mcg) 0 Carotene, alpha (mcg) 0 Vitamin E (alpha-tocopherol) (mg) 0.03 Cryptoxanthin, beta (mcg) 0 Lycopene (mcg) 0 Lutein + zeaxanthin (mcg) 0 Vitamin C, total ascorbic acid (mg) 0 Thiamin (mg) 0.03 Riboflavin (mg) 0.05 Niacin (mg) 1 Vitamin B-6 (mg) 0.11 Folate, total (mcg) 1.7 Vitamin B-12 (mcg) 0.99 Folic acid (mcg) 0 Folate, DFE (mcg_DFE) 1.7 Cholesterol (mg) 13.89 Fatty acids, total saturated (g) 0.98 Fatty acids, total monounsaturated (g) 1.34 Fatty acids, total polyunsaturated (g) 0.12