Batata (Sweet Potato)
Sweet potato leaves, along with sweet potatoes, have long been used as food in Asia, Africa, and the Caribbean.
In particular, it is rich in various vitamins and minerals such as beta-carotene , vitamins A, C, E, and B6, calcium, iron, potassium, and magnesium, as well as dietary fiber, which helps improve digestive health and strengthen immunity. Sweet potato leaves are rich in antioxidants such as polyphenols, flavonoids, and anthocyanins, and are also rich in beta-carotene, making them effective for eye and skin health. According to research conducted by the Rural Development Administration, sweet potato leaves have been reported to contain 200 times more beta-carotene than sweet potato roots and other well-known nutritious fruits. Sweet potato leaves, rich in antioxidants, prevent cell damage and aging, and are effective for reducing inflammation and relieving pain, making them beneficial for chronic inflammatory diseases such as arthritis and inflammatory bowel disease. In particular, dried sweet potato leaves and stems contain 15–21% protein, and levels of calcium and iron are three times higher.
1. Nutritional components of sweet potato leaves
Sweet potato leaves are rich in various antioxidants, including beta-carotene, lutein, anthocyanins, and polyphenols.
In addition, it contains a balanced mix of various nutrients, including vitamins A, B, C, and K, various minerals such as calcium, iron, potassium, magnesium, and phosphorus, as well as proteins, amino acids, polysaccharides, and dietary fiber.
2. Benefits of Sweet Potato Leaves
Antioxidant and anticancer effects
Sweet potato leaves are rich in antioxidants such as polyphenols and beta-carotene, making them effective against cancer.
According to research, sweet potato leaf extract was found to inhibit the growth of lung and breast cancer cells, with the inhibitory effect increasing with higher dosages.
Strengthening Immunity
Sweet potato leaves are effective for boosting immunity as they are rich in vitamins A and C in the form of beta-carotene.
In particular, the benefits of sweet potato leaves include Vitamin A strengthening mucous membranes, and Vitamin C promoting iron absorption and aiding in the production of white blood cells and strengthening immunity.
Blood sugar control effect
Sweet potato sprout tips have an excellent inhibitory effect on sugar-degrading enzymes such as alpha-glucosidase, so they can prevent the rise in blood sugar after meals.
Some varieties have been reported to inhibit enzyme activity by up to 81% and be effective in controlling blood sugar and preventing diabetes.
Cardiovascular health
Sweet potato leaves are rich in polyphenols, potassium, and dietary fiber, which are effective in lowering cholesterol levels and promoting blood circulation. They are also rich in potassium, which promotes the excretion of sodium and can reduce the risk of high blood pressure, arteriosclerosis, and heart disease.
Anti-inflammatory effect
Research by the Rural Development Administration has revealed that sweet potato leaf extract inhibits the production of nitric oxide, an indicator of inflammatory response, by up to 76%. This may help alleviate chronic inflammatory diseases such as arthritis and asthma.
Eye health and vision protection
The lutein and vitamin A contained in sweet potato leaves are effective in protecting the eyes and improving eyesight.
Beta-carotene and lutein in sweet potato stems are also effective in preventing eye diseases such as macular degeneration and cataracts.
Bone health and anemia prevention
The high calcium and iron content of sweet potato leaves is effective for promoting bone health and improving anemia.
In particular, it is rich in iron and vitamins A, C, and E, which promote blood production and strengthen hemoglobin, helping to prevent and treat anemia.