URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Beef, round, eye of round, separable lean only, trimmed to 1/2" fat, prime, raw, 1 oz Protein (g) 6.17 Total lipid (fat) (g) 1.77 Carbohydrate, by difference (g) 0 Energy (kcal) 42.24 Fiber, total dietary (g) 0 Calcium, Ca (mg) 1.13 Iron, Fe (mg) 0.41 Magnesium, Mg (mg) 6.52 Phosphorus, P (mg) 59.54 Potassium, K (mg) 108.58 Sodium, Na (mg) 15.03 Zinc, Zn (mg) 0.83 Copper, Cu (mg) 0.02 Manganese, Mn (mg) 0 Selenium, Se (mcg) 5.9 Vitamin A, IU (IU) 0 Retinol (mcg) 0 Vitamin C, total ascorbic acid (mg) 0 Thiamin (mg) 0.03 Riboflavin (mg) 0.04 Niacin (mg) 1.05 Pantothenic acid (mg) 0.1 Vitamin B-6 (mg) 0.13 Folate, total (mcg) 1.98 Vitamin B-12 (mcg) 0.91 Folic acid (mcg) 0 Folate, DFE (mcg_DFE) 1.98 Cholesterol (mg) 15.31 Fatty acids, total saturated (g) 0.65 Fatty acids, total monounsaturated (g) 0.77 Fatty acids, total polyunsaturated (g) 0.08