Lettuce, iceberg (includes crisphead types)

Nutrient	Value	% DV
Energy
Energy (kcal)	14 kcal
Energy (kJ)	58 specific_gravity
Minerals
Iron, Fe	0.41 mg	2%
Sodium, Na	10 mg	0%
Calcium, Ca	18 mg	2%
Potassium, K	141 mg	4%
Zinc, Zn	0.15 mg	1%
Magnesium, Mg	7 mg	2%
Phosphorus, P	20 mg	2%
Copper, Cu	0.025 mg	1%
Manganese, Mn	0.125 mg	6%
Selenium, Se	0.1 ug	0%
Fibers
Fiber, total dietary	1.2 g	5%
Protein
Protein	0.9 g	2%
Isoleucine	0.018 g
Leucine	0.025 g
Lysine	0.024 g
Valine	0.024 g
Histidine	0.009 g
Tryptophan	0.009 g
Threonine	0.025 g
Methionine	0.005 g
Phenylalanine	0.023 g
Carbohydrates
Carbohydrate, by difference	2.97 g	1%
Sugars, total including NLEA	1.97 g
Fructose	1 g
Sucrose	0.05 g
Glucose (dextrose)	0.91 g
Fats
Total lipid (fat)	0.14 g	0%
Phytosterols	10 mg
Saturated fats
Fatty acids, total saturated	0.018 g	0%
16:0	0.016 g
18:0	0.002 g
Monounsaturated fats
Fatty acids, total monounsaturated	0.006 g
18:1	0.004 g
16:1	0.001 g
Polyunsaturated fats
Omega 3 (total)	0.052 g	4%
Fatty acids, total polyunsaturated	0.074 g
18:2	0.021 g
18:3	0.052 g
Vitamins
Vitamin A, IU	502 iu	10%
Vitamin K (phylloquinone)	24.1 ug	30%
Vitamin C, total ascorbic acid	2.8 mg	5%
Folate, total	29 ug	7%
Vitamin E (alpha-tocopherol)	0.18 mg	1%
Vitamin B-6	0.042 mg	2%
Choline, total	6.7 mg	1%
Betaine	0.1 mg
Folate, DFE	29 ug	7%
Vitamin A, RAE	25 ug
Folate, food	29 ug	7%
Thiamin	0.041 mg	3%
Riboflavin	0.025 mg	1%
Carotene, beta	299 ug
Carotene, alpha	4 ug
Lutein + zeaxanthin	277 ug
Tocopherol, gamma	0.09 mg
Tocotrienol, alpha	0.01 mg
Niacin	0.123 mg	1%
Pantothenic acid	0.091 mg	1%
General
Ash	0.36 g
Water	95.64 g	5%
Unclassified
Cystine	0.005 g
Arginine	0.015 g
Aspartic acid	0.125 g
Serine	0.025 g
Tyrosine	0.007 g
Alanine	0.025 g
Glutamic acid	0.194 g
Glycine	0.015 g
Proline	0.01 g

Source: U.S. Department of Agriculture, Agricultural Research Service. FoodData Central, 2019. fdc.nal.usda.gov