The health functions of these leaves are:
Celery leaves: lowering blood pressure and supplementing iron
Lettuce leaves: beauty, nourishing liver and anti-gout.
Radish tassel: calcium supplementation to prevent myopia
Sweet potato leaves: longevity vegetables
From the point of view of nutrition, celery leaves have at least 10 index which is more nutritious than stems. For the elderly with cardiovascular diseases, celery leaves have the effect of calming the liver and lowering blood pressure, and one of the alkaline components can calm the nerves, which is conducive to calming the mood and eliminating irritability. Apigenin in celery leaves has a sedative effect and has a certain therapeutic effect on insomnia and headache. In winter, indoor heating is large, hot pot is eaten much, clothes are worn much, and sweating easily leads to the loss of trace elements, especially iron. Celery has high iron content and is a good vegetable for enriching blood. Lettuce leaves taste a little bitter and are often thrown away. In fact, many of its nutrients, such as beta-carotene, are 9.7 times higher than those in the stem, and beta-carotene can be converted into vitamin A in the small intestine. Vitamin A can make skin soft, shiny and elastic, also known as "beauty vitamin". The contents of vitamin B 1, B2, vitamin C and vitamin E in lettuce leaves are extremely high, which are 3-5 times higher than those in stems respectively. In addition, there is a white emulsion in the stems and leaves of lettuce, called lettuce slices, which has analgesic and anesthetic effects, can stimulate the secretion of digestive juice and promote appetite. It can improve liver function and help to resist rheumatic diseases and gout. Radish tassels, which are rarely eaten at ordinary times, are really buried nutrients. The protein content of radish tassel is not only higher than radish, but also higher than Chinese cabbage, Chinese cabbage, celery, lettuce, lotus root and many melons. The contents of carotene, vitamin C and calcium are not inferior to radish, especially the trace element manganese, which is nearly 7 times higher than radish tassel. Radish tassel is the vegetable with the highest calcium content, which is very suitable for people with calcium deficiency. No matter what kind of radish tassel, it has obvious advantages in calcium supplementation. Take soybean as an example, the calcium content per1000g of soybean is about 19 1 mg, but the calcium content per100g of carrot spike is 350mg, almost twice that of soybean. In addition to calcium supplementation, radish tassels also contain a variety of minerals and trace elements. It is a vegetable with comprehensive nutrition and rich crude fiber, and it can also relieve constipation. In addition, radish tassels contain higher molybdenum. Therefore, drinking radish tassel soup often can prevent myopia, presbyopia and cataract. The carotene content of sweet potato leaves is nearly 6000 μ g/ 100g, which is nearly 1.5 times higher than that of carrots. Its protein is also the best among green leafy vegetables, and its vitamin C is more than twice as high as that of citrus. Other nutrients are also among the best. In particular, sweet potato leaves are rich in mucin, which can improve human immunity, enhance immune function and promote metabolism. Eating sweet potato leaves often has a certain dietotherapy effect of delaying aging. When people visited Bama, the hometown of longevity, they also found that local people regarded sweet potato leaves as "longevity dishes" and often ate them.