URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Onion rings, breaded, par fried, frozen, prepared, heated in oven, 1 rings, medium (2-3" dia) Protein (g) 3.2 Total lipid (fat) (g) 16.02 Carbohydrate, by difference (g) 22.9 Energy (kcal) 244.2 Fiber, total dietary (g) 0.78 Calcium, Ca (mg) 18.6 Iron, Fe (mg) 1.01 Magnesium, Mg (mg) 11.4 Phosphorus, P (mg) 48.6 Potassium, K (mg) 77.4 Sodium, Na (mg) 225 Zinc, Zn (mg) 0.25 Copper, Cu (mg) 0.05 Manganese, Mn (mg) 0.25 Selenium, Se (mcg) 2.1 Vitamin A, IU (IU) 135 Retinol (mcg) 0 Vitamin C, total ascorbic acid (mg) 0.84 Thiamin (mg) 0.17 Riboflavin (mg) 0.08 Niacin (mg) 2.17 Pantothenic acid (mg) 0.14 Vitamin B-6 (mg) 0.05 Folate, total (mcg) 39.6 Vitamin B-12 (mcg) 0 Folic acid (mcg) 31.8 Folate, DFE (mcg_DFE) 61.8 Cholesterol (mg) 0 Fatty acids, total saturated (g) 5.15 Fatty acids, total monounsaturated (g) 6.52 Fatty acids, total polyunsaturated (g) 3.07