URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Lemon juice, raw, 1 wedge yields Protein (g) 0.02 Total lipid (fat) (g) 0 Carbohydrate, by difference (g) 0.51 Energy (kcal) 1.48 Sugars, total (g) 0.14 Fiber, total dietary (g) 0.02 Calcium, Ca (mg) 0.41 Iron, Fe (mg) 0 Magnesium, Mg (mg) 0.35 Phosphorus, P (mg) 0.35 Potassium, K (mg) 7.32 Sodium, Na (mg) 0.06 Zinc, Zn (mg) 0 Copper, Cu (mg) 0 Manganese, Mn (mg) 0 Selenium, Se (mcg) 0.01 Vitamin A, IU (IU) 1.12 Retinol (mcg) 0 Carotene, beta (mcg) 0.18 Carotene, alpha (mcg) 0 Vitamin E (alpha-tocopherol) (mg) 0.01 Cryptoxanthin, beta (mcg) 1 Lycopene (mcg) 0 Lutein + zeaxanthin (mcg) 0.53 Vitamin C, total ascorbic acid (mg) 2.71 Thiamin (mg) 0 Riboflavin (mg) 0 Niacin (mg) 0.01 Pantothenic acid (mg) 0.01 Vitamin B-6 (mg) 0 Folate, total (mcg) 0.77 Vitamin B-12 (mcg) 0 Vitamin K (phylloquinone) (mcg) 0 Folic acid (mcg) 0 Folate, DFE (mcg_DFE) 0.77 Cholesterol (mg) 0 Fatty acids, total saturated (g) 0 Fatty acids, total monounsaturated (g) 0 Fatty acids, total polyunsaturated (g) 0