URMC / Encyclopedia / Content Search Encyclopedia Nutrition Facts Lemons, raw, without peel, 1 wedge or slice (1/8 of one 2-1/8" dia lemon) Protein (g) 0.08 Total lipid (fat) (g) 0.02 Carbohydrate, by difference (g) 0.65 Energy (kcal) 2.03 Sugars, total (g) 0.18 Fiber, total dietary (g) 0.2 Calcium, Ca (mg) 1.82 Iron, Fe (mg) 0.04 Magnesium, Mg (mg) 0.56 Phosphorus, P (mg) 1.12 Potassium, K (mg) 9.66 Sodium, Na (mg) 0.14 Zinc, Zn (mg) 0 Copper, Cu (mg) 0 Manganese, Mn (mg) 0 Selenium, Se (mcg) 0.03 Vitamin A, IU (IU) 1.54 Retinol (mcg) 0 Carotene, beta (mcg) 0.21 Carotene, alpha (mcg) 0.07 Vitamin E (alpha-tocopherol) (mg) 0.01 Cryptoxanthin, beta (mcg) 1.4 Lycopene (mcg) 0 Lutein + zeaxanthin (mcg) 0.77 Vitamin C, total ascorbic acid (mg) 3.71 Thiamin (mg) 0 Riboflavin (mg) 0 Niacin (mg) 0.01 Pantothenic acid (mg) 0.01 Vitamin B-6 (mg) 0.01 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) 0.01