Sweet potato leaves (perennial vines) are also called sweet potato leaves, that is, the leaves on the stems during the growth of sweet potatoes. Sweet potato leaves have many uses, such as improving immunity, protecting eyesight, delaying aging and detoxifying. We usually eat the tender leaves at the top of the stems of sweet potatoes after they mature in autumn.

Efficacy and function of sweet potato leaves

Expel toxin

Rich in chlorophyll, it can "purify blood" and help detoxify;

improve immunity

It contains antioxidants 5- 10 times higher than ordinary vegetables, which can improve immunity and "prevent colds";

Prevention of anemia

Taking 30g sweet potato leaves every day can supplement the iron and vitamins A, C and E needed by the human body for one day;

Prevention of hypertension

Rich in potassium, it helps to control blood pressure and prevent hypertension;

Improve constipation

Rich dietary fiber can promote gastrointestinal peristalsis and prevent constipation and hemorrhoids;

be anticancer

Rich in polyphenols, it can prevent cell canceration;

Improve menopausal symptoms

Rich in phytosterols, it can achieve the effect of regulating body function similar to hormones;

Promote milk secretion

Rich in flavonoids and other substances, can promote milk secretion;

Enhance eyesight

Rich in vitamin A, it can enhance eyesight.

Efficacy and function of sweet potato leaves What is the nutritional value of sweet potato leaves?

What is the nutritional value of sweet potato leaves?

Sweet potato leaf is the leaf of sweet potato vine, also called sweet potato leaf, which is a sweet potato plant of convolvulaceae. It is a kind of sweet potato seedling with tender stem tip for human consumption. It is still known as the "queen of vegetables", "longevity vegetables" and "anti-cancer vegetables" in Hong Kong and even in the world. The Asian Vegetable Research Center lists sweet potato leaves as a highly nutritious vegetable variety.

Sweet potato leaves are nutritious, green, tender and refreshing. Most of its nutrients are much higher than those of spinach and celery, especially carotenoids are three times higher than ordinary carrots and more than 600 times higher than fresh corn and taro.

Sweet potato seedlings are rich in nutrition. Every100g sweet potato bud, the top10-15cm, and the tender leaves and petioles are collectively called stems. Sweet potato stem tips are rich in protein, carotene, vitamins, iron and calcium.

According to laboratory analysis, the weight of crude protein in shoot tip is 21.1%-15.1%of dry weight, which is equivalent to that of pig beef. Protein of stem, leaf and shoot tip is 2.7%, carotene 5580 international unit/100g, vitamin C 4 1.07mg/kg, calcium 74mg/kg, iron 4mg/kg, vitamin b 1 3mg/kg and nicotinic acid 6-/kloc. According to the detection of China College of Preventive Medicine, compared with celery, Chinese cabbage, spinach, Chinese cabbage, rape, leek, cucumber, eggplant, carrot and tomato, among the 14 nutrients, protein, fat, calorie, cellulose carbohydrate, calcium, iron, phosphorus, carotene, vitamin C and vitamin.