15/06/2020
Kangkong (water spinach) nutrition facts
Kangkong or water spinach is one of the very familiar green leafy vegetables used in the South and South-East Asian cuisine. Its gently sweet, mucilaginous, succulent leaves and stems are very much sought-after in the salads, braised and stir-fries.
Botanically this fast-growing leafy vegetable belongs to the Convolvulaceae family, and closely related to the sweet potatoes but has no resemblance to spinach.
Scientific name: Ipomoea aquatica Forsk.
The water spinach plant features smooth, hollow stems similar to watercress, and therefore, is called as hollow stemmed vegetable (Kung Shin Tsai) in China. Its green, arrowhead (lanceolate) shaped leaves widely vary in size from 2.5 to 8 cm in breadth. White, trumpet-shaped flowers with purple center appear later in the stages but are not produced in the actively harvesting plant.
Based on the growth habit, there are two varieties of water spinach.
The tall, erect type which grows on the soil that is rich in organic matter and sufficient moisture. New roots emerge at inter-nodal junctions which when come in contact with the soil, fix and grow further like a creeper.
The other type is semi-aquatic, grows in swamp ground, called swamp cabbage. Its primary root is fixed in the soil and secondary (adventitious) rootlets at the inter-nodes are either free floating in the water, or when come in contact with the surface, cling on to the soil.
Health benefits of Kangkong (Water spinach)
Kangkong greens are very low in calories and fats. Nonetheless, its succulent leaves carry plenty of vitamins, lead in the front by vitamin-A (6600 IU/100 grams), in addition to being rich in antioxidants and minerals.
100 grams of fresh leaves carry just 19 calories. For the same reason, it is one of the exquisite greens often recommended by the dieticians in the cholesterol controlling and weight reduction programs for their overall antioxidant, low-calorific and low-fat properties.