United States Department of Agriculture
Agricultural Research Service

National Nutrient Database for Standard Reference Legacy Release
Full Report (All Nutrients):  11503, Water convolvulus,raw
Food Group: Vegetables and Vegetable Products
Common Name: kangkong, water spinach
Scientific Name:  Ipomoea aquatica
Carbohydrate Factor: 3.57   Fat Factor:8.37   Protein Factor: 2.44   Nitrogen to Protein Conversion Factor: 6.25  
Refuse: 23%   Refuse Description:   Tough stems
heading Nutrient Unit
Value per 100 g
# of Data Points Std. Error
cup, chopped 56 g

shoot 13 g
Proximates Water g 92.47 2 -- 51.78 12.02
Proximates Energy kcal 19 -- -- 11 2
Proximates Energy kJ 80 -- -- 45 10
Proximates Protein g 2.60 1 -- 1.46 0.34
Proximates Total lipid (fat) g 0.20 1 -- 0.11 0.03
Proximates Ash g 1.60 -- -- 0.90 0.21
Proximates Carbohydrate, by difference g 3.13 -- -- 1.75 0.41
Proximates Fiber, total dietary g 2.1 -- -- 1.2 0.3
Minerals Calcium, Ca mg 77 2 -- 43 10
Minerals Iron, Fe mg 1.67 2 -- 0.94 0.22
Minerals Magnesium, Mg mg 71 2 -- 40 9
Minerals Phosphorus, P mg 39 2 -- 22 5
Minerals Potassium, K mg 312 2 -- 175 41
Minerals Sodium, Na mg 113 -- -- 63 15
Minerals Zinc, Zn mg 0.18 -- -- 0.10 0.02
Minerals Copper, Cu mg 0.023 -- -- 0.013 0.003
Minerals Manganese, Mn mg 0.160 -- -- 0.090 0.021
Minerals Selenium, Se µg 0.9 -- -- 0.5 0.1
Vitamins Vitamin C, total ascorbic acid mg 55.0 1 -- 30.8 7.2
Vitamins Thiamin mg 0.030 1 -- 0.017 0.004
Vitamins Riboflavin mg 0.100 1 -- 0.056 0.013
Vitamins Niacin mg 0.900 1 -- 0.504 0.117
Vitamins Pantothenic acid mg 0.141 -- -- 0.079 0.018
Vitamins Vitamin B-6 mg 0.096 -- -- 0.054 0.012
Vitamins Folate, total µg 57 -- -- 32 7
Vitamins Folic acid µg 0 -- -- 0 0
Vitamins Folate, food µg 57 -- -- 32 7
Vitamins Folate, DFE µg 57 -- -- 32 7
Vitamins Vitamin B-12 µg 0.00 -- -- 0.00 0.00
Vitamins Vitamin A, RAE µg 315 1 -- 176 41
Vitamins Retinol µg 0 -- -- 0 0
Vitamins Vitamin A, IU IU 6300 1 -- 3528 819
Vitamins Vitamin D (D2 + D3) µg 0.0 -- -- 0.0 0.0
Vitamins Vitamin D IU 0 -- -- 0 0
Lipids Fatty acids, total trans g 0.000 -- -- 0.000 0.000
Lipids Cholesterol mg 0 -- -- 0 0
Amino Acids Threonine g 0.140 1 -- 0.078 0.018
Amino Acids Isoleucine g 0.104 1 -- 0.058 0.014
Amino Acids Leucine g 0.146 1 -- 0.082 0.019
Amino Acids Lysine g 0.109 1 -- 0.061 0.014
Amino Acids Methionine g 0.044 1 -- 0.025 0.006
Amino Acids Cystine g 0.028 1 -- 0.016 0.004
Amino Acids Phenylalanine g 0.127 1 -- 0.071 0.017
Amino Acids Tyrosine g 0.080 1 -- 0.045 0.010
Amino Acids Valine g 0.135 1 -- 0.076 0.018
Amino Acids Arginine g 0.148 1 -- 0.083 0.019
Amino Acids Histidine g 0.047 1 -- 0.026 0.006
Amino Acids Alanine g 0.109 1 -- 0.061 0.014
Amino Acids Aspartic acid g 0.650 1 -- 0.364 0.085
Amino Acids Glutamic acid g 0.252 1 -- 0.141 0.033
Amino Acids Glycine g 0.099 1 -- 0.055 0.013
Amino Acids Proline g 0.088 1 -- 0.049 0.011
Amino Acids Serine g 0.122 1 -- 0.068 0.016
Langual Code(s)

  • A0152 VEGETABLE OR VEGETABLE PRODUCT (US CFR)
  • A1281 1100 VEGETABLES AND VEGETABLE PRODUCTS (USDA SR)
  • B1733 SWAMP CABBAGE
  • C0151 HEAD (PLANT)
  • E0150 WHOLE, NATURAL SHAPE
  • F0003 NOT HEAT-TREATED
  • G0003 COOKING METHOD NOT APPLICABLE
  • H0003 NO TREATMENT APPLIED
  • J0001 PRESERVATION METHOD NOT KNOWN
  • K0003 NO PACKING MEDIUM USED
  • M0001 CONTAINER OR WRAPPING NOT KNOWN
  • N0001 FOOD CONTACT SURFACE NOT KNOWN
  • P0024 HUMAN FOOD, NO AGE SPECIFICATION