In our daily life to eat some fruits and vegetables, some fruits and vegetables with skin we will sometimes peel clean, some times will eat with skin. In fact, some fruits and vegetables skin is good for the human body, some of them can not eat it! Take a look at the five kinds of fruit and vegetable skin in the end is what it is. Groundnut skin has the risk of harming the liver Sweet potato (also known as sweet potato, groundnut) long-term direct contact with the soil, a lot of harmful substances will be absorbed in the sweet potato skin. Its skin contains a lot of alkali, which can cause gastrointestinal discomfort when consumed in excess. Moreover, brown and dark brown spots of sweet potato skin is infected by “black spot disease bacteria”, can produce “sweet potato ketone” and “sweet potato ketone alcohol”, into the human body will damage the liver and cause poisoning. It can damage the liver and cause poisoning. There are also some business baked sweet potato stall owners to save money, choose coke as fuel, resulting in sulfur dioxide and other harmful substances are also easily deposited in the sweet potato skin. Potato skin has the risk of chronic poisoning Peeling potatoes is quite troublesome, but you must not take it lightly. Potato skins contain glycoalkaloids, and this toxic substance is almost entirely concentrated in the potato skin, if accidentally eaten will cause poisoning. Because it is a chronic poisoning, temporary asymptomatic or symptoms are not obvious, often do not attract attention, but the harm to the body is very great. Especially long buds and skin color green potatoes, containing toxins higher, should be absolutely prohibited to eat. Skinned potatoes will still retain allotropic alkaloids even after cooking. Persimmon skin hurts the stomach Medical research has proved that tannins, which can cause damage to the stomach and intestines, are mainly found in the flesh of persimmons when they are not ripe. When persimmons are ripe, the tannins are concentrated in the persimmon skin. Therefore, the skin of ripe persimmons feels astringent when eaten. Persimmons contain tannic acid this substance in the role of gastric acid, and food proteins in the role of chemical synthesis to produce precipitates that persimmon stone, easy to cause abdominal discomfort, fullness, loss of appetite and so on. Therefore, do not eat unpeeled persimmons, do not eat persimmons on an empty stomach. Ginkgo biloba hurt nerves Ginkgo biloba contains poisonous substances in the skin “leucoacid”, “hydrogenated leucoacid”, “hydrogenated leucoacid” and “leucoalcohol “and so on, after entering the human body will damage the central nervous system, causing poisoning. In addition, cooked ginkgo meat should not be eaten. Water chestnut skin has parasites Water chestnut is often born in paddy fields, and the skin of water chestnut also contains parasites or insect eggs, which can lead to diseases if unwashed water chestnut skin is eaten while raw. This eleven kinds of fruit and vegetable skin is good medicine 1, watermelon skin watermelon skin has many wonderful uses, you can relieve toothache, treatment of mouth ulcers; watermelon skin and mung beans together with soup can prevent fire; watermelon skin of the white part of the rubbing prickly heat affected areas can be treated prickly heat; watermelon skin and water decoction can prevent prickly heat. 2, winter melon skin summer, spleen, diuretic effect, can be used for the treatment of kidney disease, lung disease, heart disease caused by edema, bloating, urination and so on. With winter melon skin decoction soup feet, both for foot odor, and cure foot odor, two birds with one stone. 3, cucumber skin Some people eat cucumber skin, it is a pity, cucumber a green coat contains chlorogenic acid and caffeic acid, can play the role of antibacterial and anti-inflammatory and stimulate the role of white blood cell phagocytosis. Cucumber skin consumption is often sore throat is a good medicine. 4, banana peel Banana peel contains inhibitory fungal and bacterial effective ingredients – banana peel, can be cured by fungal infections caused by itchy skin. Banana peels also moisturize the lungs and intestines, blood circulation, increase the efficacy of the essence. Banana peel mashed with ginger juice can reduce inflammation and pain, with banana peel rubbing hands and feet, can prevent and cure frostbite. In addition, banana peels dried and ground powder, or a good beauty product. 5, apple skin apple skin has astringent effect. Take fresh apple peel decoction or tea, can cure hyperacidity, phlegm. Apple peel dry powder, fasting, 2 to 3 times a day, chronic diarrhea and neurogenic colitis, hypertension, etc. have a certain degree of efficacy. 6, pear skin pear cold and sour, can cool the heart and lungs, in addition to fire and eliminate phlegm, with pear skin 30 grams of decoction soup service, there are clear heart and lungs, cough and phlegm effect, can treat phlegm, cough. Pear skin will be mashed as mud, external application of the affected area can cure carbuncle pain, with fresh pear skin decoction often drink, can detoxification and swelling. 7, pomelo skin can regulate qi, phlegm, cough, asthma, with a pomelo skin, peel off the inner layer of the flesh, broken, add the right amount of honey and caramel steamed, can resolve phlegm and eliminate food. 8, orange peel (Chen Pi) has the effect of regulating qi and resolving phlegm, strengthening the spleen and removing dampness, but also reduce blood pressure. Orange peel can treat cough and phlegm, chest tightness, bloating, regurgitation, vomiting and so on. Orange peel contains flavonoid glycosides, can expand coronary arteries, increase coronary blood flow. 9, grape skin Grape skin contains more than grape meat and seeds in the rich resveratrol, with lowering blood lipids, anti-thrombosis, prevention of atherosclerosis, enhance immunity and so on. In particular, the flavonoids in the skin of purple grapes, and the efficacy of reducing blood pressure. Grape skin is also rich in fiber, pectin and iron. Some people have begun to study the use of grape skin processed food, used to treat high cholesterol, diabetes and so on. 10, tomato skin Lycopene is so far found the strongest antioxidant capacity of natural substances, can prevent and control cardiovascular disease, cancer prevention, the most content in the tomato skin. In addition, tomato skin also helps to maintain intestinal health. Therefore, tomatoes with skin to eat the most nutritious. 11, eggplant skin eggplant is a cardiovascular patient’s therapeutic food, a large number of nutrients but hidden in the eggplant skin. Eggplant skin will not only reduce the health value, but also because of the iron oxidation by the air, it is easy to blacken, affecting the body’s absorption of iron.