kangkong
Rich in vitamins A, C, and K, as well as iron and calcium. Low in calories and contains beneficial polyphenols and antioxidants; the hollow stems contribute minimal caloric density while providing mineral content.
About
Kangkong (Ipomoea aquatica), also known as water spinach, swamp cabbage, or ong choy, is an aquatic or semi-aquatic herbaceous vine belonging to the morning glory family (Convolvulaceae). Native to Southeast Asia, particularly the Indian subcontinent and Southeast Asian regions, it is characterized by hollow, succulent stems and arrow-shaped leaves. The plant thrives in wetland environments and exhibits rapid growth, producing tender green shoots and stems that are the primary culinary portions. Kangkong exhibits a mild, slightly sweet flavor with a tender-crisp texture when cooked briefly, and contains minimal fiber compared to terrestrial leafy greens.
Two principal cultivars are recognized: the white-stemmed variety (preferred for its tenderness and flavor) and the green-stemmed variety (hardier and more bitter). The entire young plant, including stems and leaves, is edible and commonly consumed in fresh or lightly cooked applications.
Culinary Uses
Kangkong is a staple vegetable across Southeast Asia, particularly in Filipino, Thai, Vietnamese, Cambodian, and Chinese cuisines. It is most commonly prepared by stir-frying with garlic, chilies, and fermented shrimp paste (as in the Filipino dish kangkong with bagoong), or blanched and served with dipping sauces. The tender stems and leaves cook rapidly and should be added near the end of cooking to preserve texture and prevent overcooking. Kangkong pairs well with assertive flavors such as garlic, ginger, soy sauce, and chili, and is frequently featured in soups, curries, and as a vegetable accompaniment to rice-based meals. The mild, slightly sweet character allows it to serve as a vehicle for bold seasonings without overpowering other ingredients.