URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Fast foods, submarine sandwich, with tuna salad, 1 submarine Protein (g) 29.7 Total lipid (fat) (g) 27.98 Carbohydrate, by difference (g) 55.37 Energy (kcal) 583.68 Calcium, Ca (mg) 74.24 Iron, Fe (mg) 2.64 Magnesium, Mg (mg) 79.36 Phosphorus, P (mg) 220.16 Potassium, K (mg) 335.36 Sodium, Na (mg) 1292.8 Zinc, Zn (mg) 1.87 Copper, Cu (mg) 0.43 Manganese, Mn (mg) 0.51 Selenium, Se (mcg) 60.16 Vitamin A, IU (IU) 186.88 Retinol (mcg) 43.52 Vitamin C, total ascorbic acid (mg) 3.58 Thiamin (mg) 0.46 Riboflavin (mg) 0.33 Niacin (mg) 11.34 Pantothenic acid (mg) 1.87 Vitamin B-6 (mg) 0.23 Folate, total (mcg) 102.4 Vitamin B-12 (mcg) 1.61 Folic acid (mcg) 46.08 Folate, DFE (mcg_DFE) 135.68 Cholesterol (mg) 48.64 Fatty acids, total saturated (g) 5.33 Fatty acids, total monounsaturated (g) 13.4 Fatty acids, total polyunsaturated (g) 7.3