URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Watercress, raw, 1 cup, chopped Protein (g) 0.78 Total lipid (fat) (g) 0.03 Carbohydrate, by difference (g) 0.44 Energy (kcal) 3.74 Sugars, total (g) 0.07 Fiber, total dietary (g) 0.17 Calcium, Ca (mg) 40.8 Iron, Fe (mg) 0.07 Magnesium, Mg (mg) 7.14 Phosphorus, P (mg) 20.4 Potassium, K (mg) 112.2 Sodium, Na (mg) 13.94 Zinc, Zn (mg) 0.04 Copper, Cu (mg) 0.03 Manganese, Mn (mg) 0.08 Selenium, Se (mcg) 0.31 Vitamin A, IU (IU) 1598 Retinol (mcg) 0 Carotene, beta (mcg) 958.8 Carotene, alpha (mcg) 0 Vitamin E (alpha-tocopherol) (mg) 0.34 Cryptoxanthin, beta (mcg) 0 Lycopene (mcg) 0 Lutein + zeaxanthin (mcg) 1960.78 Vitamin C, total ascorbic acid (mg) 14.62 Thiamin (mg) 0.03 Riboflavin (mg) 0.04 Niacin (mg) 0.07 Pantothenic acid (mg) 0.11 Vitamin B-6 (mg) 0.04 Folate, total (mcg) 3.06 Vitamin B-12 (mcg) 0 Vitamin K (phylloquinone) (mcg) 85 Folic acid (mcg) 0 Folate, DFE (mcg_DFE) 3.06 Cholesterol (mg) 0 Fatty acids, total saturated (g) 0.01 Fatty acids, total monounsaturated (g) 0 Fatty acids, total polyunsaturated (g) 0.01