Sweet potato leaves are the leaves of the convolvulaceae sweet potato. All parts of China are cultivated. Harvested in summer and autumn, washed fresh and used.
Modern nutrition studies have found that sweet potato leaves have special flavors and rich nutrition and are incomparable to many vegetables. Vitamins C, B2, carotene, and alpha-tocopherol are abundant, and they are a good source of minerals needed by the human body. According to analysis, the sweet potato leaves contain rich carotenoids, vitamin C, calcium, phosphorus, iron and essential amino acids, but the oxalic acid content is high. Sweet potato leaves are also rich in flavonoids, which can capture the oxygen free radical "killer" that stirs up the waves in the human body. It has antioxidant, anti-oxidant, anti-inflammatory, anti-aging, anti-inflammatory and anti-cancer effects. In addition, modern scientific research has also shown that the sweet potato leaves and roots contain a lot of liquid protein, can prevent fat deposition in the cardiovascular system, maintain the elasticity of arterial blood vessels, help prevent coronary heart disease, but also prevent connective tissue in the liver and kidney Shrinkage, to maintain the lubrication of the digestive tract, respiratory tract and joint cavity. Sweet potato leaves rich in fiber can also speed up the food in the stomach, with a clean intestinal role.