URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Nuts, walnuts, english, 1 cup shelled (50 halves) Note: Unroasted Protein (g) 15.23 Total lipid (fat) (g) 65.21 Carbohydrate, by difference (g) 13.71 Energy (kcal) 654 Sugars, total (g) 2.61 Fiber, total dietary (g) 6.7 Calcium, Ca (mg) 98 Iron, Fe (mg) 2.91 Magnesium, Mg (mg) 158 Phosphorus, P (mg) 346 Potassium, K (mg) 441 Sodium, Na (mg) 2 Zinc, Zn (mg) 3.09 Copper, Cu (mg) 1.59 Manganese, Mn (mg) 3.41 Selenium, Se (mcg) 4.9 Vitamin A, IU (IU) 20 Retinol (mcg) 0 Carotene, beta (mcg) 12 Carotene, alpha (mcg) 0 Vitamin E (alpha-tocopherol) (mg) 0.7 Cryptoxanthin, beta (mcg) 0 Lycopene (mcg) 0 Lutein + zeaxanthin (mcg) 9 Vitamin C, total ascorbic acid (mg) 1.3 Thiamin (mg) 0.34 Riboflavin (mg) 0.15 Niacin (mg) 1.12 Pantothenic acid (mg) 0.57 Vitamin B-6 (mg) 0.54 Folate, total (mcg) 98 Vitamin B-12 (mcg) 0 Vitamin K (phylloquinone) (mcg) 2.7 Folic acid (mcg) 0 Folate, DFE (mcg_DFE) 98 Cholesterol (mg) 0 Fatty acids, total saturated (g) 6.13 Fatty acids, total monounsaturated (g) 8.93 Fatty acids, total polyunsaturated (g) 47.17