URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Fish, tuna, fresh, skipjack, raw, 1 oz Protein (g) 18.7 Total lipid (fat) (g) 0.86 Carbohydrate, by difference (g) 0 Energy (kcal) 87.55 Fiber, total dietary (g) 0 Calcium, Ca (mg) 24.65 Iron, Fe (mg) 1.06 Magnesium, Mg (mg) 28.9 Phosphorus, P (mg) 188.7 Potassium, K (mg) 345.95 Sodium, Na (mg) 31.45 Zinc, Zn (mg) 0.7 Copper, Cu (mg) 0.07 Manganese, Mn (mg) 0.01 Selenium, Se (mcg) 31.02 Vitamin A, IU (IU) 44.2 Retinol (mcg) 13.6 Vitamin C, total ascorbic acid (mg) 0.85 Thiamin (mg) 0.03 Riboflavin (mg) 0.08 Niacin (mg) 13.09 Pantothenic acid (mg) 0.36 Vitamin B-6 (mg) 0.72 Folate, total (mcg) 7.65 Vitamin B-12 (mcg) 1.62 Folic acid (mcg) 0 Folate, DFE (mcg_DFE) 7.65 Cholesterol (mg) 39.95 Fatty acids, total saturated (g) 0.28 Fatty acids, total monounsaturated (g) 0.16 Fatty acids, total polyunsaturated (g) 0.27