Lettuce, cos or romaine

Nutrient	Value	% DV
Energy
Energy (kcal)	17 kcal
Energy (kJ)	72 specific_gravity
Minerals
Sodium, Na	8 mg	0%
Calcium, Ca	33 mg	3%
Potassium, K	247 mg	7%
Zinc, Zn	0.23 mg	2%
Iron, Fe	0.97 mg	5%
Selenium, Se	0.4 ug	1%
Copper, Cu	0.048 mg	2%
Manganese, Mn	0.155 mg	8%
Magnesium, Mg	14 mg	4%
Phosphorus, P	30 mg	3%
Fibers
Fiber, total dietary	2.1 g	8%
Protein
Protein	1.23 g	2%
Tryptophan	0.01 g
Threonine	0.043 g
Methionine	0.015 g
Phenylalanine	0.065 g
Isoleucine	0.045 g
Leucine	0.076 g
Lysine	0.064 g
Valine	0.055 g
Histidine	0.021 g
Carbohydrates
Carbohydrate, by difference	3.29 g	1%
Sugars, total including NLEA	1.19 g
Glucose (dextrose)	0.39 g
Fructose	0.8 g
Fats
Total lipid (fat)	0.3 g	0%
Saturated fats
Fatty acids, total saturated	0.039 g	0%
16:0	0.035 g
18:0	0.005 g
Monounsaturated fats
Fatty acids, total monounsaturated	0.012 g
18:1	0.009 g
16:1	0.003 g
Polyunsaturated fats
Omega 3 (total)	0.113 g	8%
Fatty acids, total polyunsaturated	0.16 g
18:2	0.047 g
18:3	0.113 g
Vitamins
Vitamin A, IU	8710 iu	174%
Vitamin C, total ascorbic acid	4 mg	7%
Folate, total	136 ug	34%
Vitamin B-6	0.074 mg	4%
Vitamin E (alpha-tocopherol)	0.13 mg	0%
Vitamin K (phylloquinone)	102.5 ug	128%
Choline, total	9.9 mg	2%
Vitamin A, RAE	436 ug
Carotene, beta	5226 ug
Betaine	0.1 mg
Folate, DFE	136 ug	34%
Folate, food	136 ug	34%
Lutein + zeaxanthin	2312 ug
Tocopherol, gamma	0.36 mg
Tocotrienol, alpha	0.04 mg
Niacin	0.313 mg	2%
Pantothenic acid	0.142 mg	1%
Tocopherol, delta	0.01 mg
Thiamin	0.072 mg	5%
Riboflavin	0.067 mg	4%
General
Water	94.61 g	5%
Ash	0.58 g
Unclassified
Tyrosine	0.025 g
Alanine	0.056 g
Glutamic acid	0.178 g
Glycine	0.049 g
Proline	0.045 g
Cystine	0.006 g
Arginine	0.054 g
Aspartic acid	0.139 g
Serine	0.05 g

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