United States Department of Agriculture
Agricultural Research Service
USDA Branded Food Products Database
Try FoodData Central Basic Report:  09152, Lemon juice, raw
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heading Nutrient Unit
Value per 100 g
cup 244 g
fl oz 30.5 g
lemon yields 48 g
wedge yields 5.9 g
Proximates Water g 92.31 225.24 28.15 44.31 5.45
Proximates Energy kcal 22 54 7 11 1
Proximates Protein g 0.35 0.85 0.11 0.17 0.02
Proximates Total lipid (fat) g 0.24 0.59 0.07 0.12 0.01
Proximates Carbohydrate, by difference g 6.90 16.84 2.10 3.31 0.41
Proximates Fiber, total dietary g 0.3 0.7 0.1 0.1 0.0
Proximates Sugars, total g 2.52 6.15 0.77 1.21 0.15
Minerals Calcium, Ca mg 6 15 2 3 0
Minerals Iron, Fe mg 0.08 0.20 0.02 0.04 0.00
Minerals Magnesium, Mg mg 6 15 2 3 0
Minerals Phosphorus, P mg 8 20 2 4 0
Minerals Potassium, K mg 103 251 31 49 6
Minerals Sodium, Na mg 1 2 0 0 0
Minerals Zinc, Zn mg 0.05 0.12 0.02 0.02 0.00
Vitamins Vitamin C, total ascorbic acid mg 38.7 94.4 11.8 18.6 2.3
Vitamins Thiamin mg 0.024 0.059 0.007 0.012 0.001
Vitamins Riboflavin mg 0.015 0.037 0.005 0.007 0.001
Vitamins Niacin mg 0.091 0.222 0.028 0.044 0.005
Vitamins Vitamin B-6 mg 0.046 0.112 0.014 0.022 0.003
Vitamins Folate, DFE µg 20 49 6 10 1
Vitamins Vitamin B-12 µg 0.00 0.00 0.00 0.00 0.00
Vitamins Vitamin A, RAE µg 0 0 0 0 0
Vitamins Vitamin A, IU IU 6 15 2 3 0
Vitamins Vitamin E (alpha-tocopherol) mg 0.15 0.37 0.05 0.07 0.01
Vitamins Vitamin D (D2 + D3) µg 0.0 0.0 0.0 0.0 0.0
Vitamins Vitamin D IU 0 0 0 0 0
Vitamins Vitamin K (phylloquinone) µg 0.0 0.0 0.0 0.0 0.0
Lipids Fatty acids, total saturated g 0.040 0.098 0.012 0.019 0.002
Lipids Fatty acids, total monounsaturated g 0.006 0.015 0.002 0.003 0.000
Lipids Fatty acids, total polyunsaturated g 0.021 0.051 0.006 0.010 0.001
Lipids Fatty acids, total trans g 0.000 0.000 0.000 0.000 0.000
Lipids Cholesterol mg 0 0 0 0 0
Other Caffeine mg 0 0 0 0 0

Footnotes
a  Mean value contains data based on the analysis of 5-methyltetrahydrofolate plus total folate determined microbiologically