Morning Glory

Morning glory leaves (most often from Ipomoea aquatica, also called water spinach or kangkong) are tender, elongated green vegetables native to Southeast Asia and widely cultivated in tropical and subtropical regions. They are eaten fresh, stir-fried, or blanched in cuisines across Thailand, Vietnam, China, and the Philippines. The plant grows rapidly in wetland or aquatic environments, which makes it both commercially accessible and a staple in home gardens throughout Asia.

Morning glory leaves are low in calories and provide moderate amounts of fiber, vitamin A (as beta-carotene), vitamin C, iron, and manganese. The leaves contain polyphenolic compounds and small amounts of oxalates. From a digestive standpoint, the fiber content supports normal bowel function, and the oxalate content is comparable to many common leafy greens. The leaves are generally well tolerated when cooked.

Micronutrient Density

Morning glory leaves are a source of dietary iron, though plant-based iron (non-heme) is absorbed less efficiently than animal sources. A serving provides meaningful vitamin C, which can enhance non-heme iron absorption when consumed together. The beta-carotene content supports routine vision and immune function. For populations relying on plant-based whole foods, morning glory leaves represent an accessible micronutrient source alongside other leafy greens.

Intake and Tolerability

Morning glory leaves are safe for most populations when properly prepared and cooked, with no established toxicity at typical culinary portions. When grown in untreated water or flooded paddies, raw morning glory carries a documented risk of parasitic contamination (including liver flukes such as Fasciolopsis buski); thorough cooking eliminates this risk and is the standard preparation in traditional cuisines. Raw consumption is therefore not recommended unless produce sourcing and water quality are confirmed to be safe. Individuals following a low-FODMAP diet should be aware that morning glory contains fructans and may be considered high-FODMAP at larger serving sizes; smaller portions are generally better tolerated. Individuals with iron-storage disorders (such as hemochromatosis) or kidney disease should be aware of the oxalate and mineral content and consult their healthcare provider if consuming large quantities regularly. Cooking (boiling or stir-frying) reduces oxalate bioavailability.