What is the function and efficacy of natural lemon Dan?

Lemon can fight scurvy. Why can vegetables and lemons treat this disease? The first thing people think of is that these foods must contain some essential substances to sustain life-vitamins. At the beginning of the 20th century, people speculated that scurvy was a vitamin deficiency. In 1930s, people finally separated "hexuronic acid" from adrenal cortex, cabbage and lemon juice, clarified its chemical structure and determined that it was an element of ascorbic acid (vitamin C), so people called it "mysterious medicine fruit". & gt Lemons can prevent colds and so on. Lemon is one of the most medicinal fruits in the world. It is rich in vitamin C, sugar, calcium, phosphorus, iron, vitamin B 1, vitamin B2, nicotinic acid, quinic acid, citric acid, malic acid, hesperidin, naringin and coumarin, high in potassium and low in sodium, which is very beneficial to human body. Vitamin C can maintain the formation of various tissues and intercellular substance in human body and maintain its normal physiological function. Matrix, adhesion and colloid formation in human body need vitamin C for protection. When vitamin C is deficient, the intercellular substance-colloid is also less. In this way, cells will become brittle and lose the ability to resist external forces, and the human body is prone to sepsis; It has many uses, such as preventing colds, stimulating hematopoiesis and fighting cancer. & gt Citric acid can prevent and eliminate skin pigmentation, and women who love beauty should eat more. External application of lemon >: 0 1 A few drops of lemon juice into the nose every day can treat sinusitis. & gt Applying lemon directly can cure the wound. & gt rubbing hands and feet with lemon can cure frostbite. & gt Lemons can also treat mosquito bites and drive away flies and insects. > Massage with lemon can reduce neuralgia. & gt Rheumatism can also be relieved by rubbing lemon on the affected area many times. & gt Applying a mixture of olive oil and lemon juice to hands and feet at night can cure chapped skin. & gt Lemon can be directly used as deodorant. & gt 1 lemon juice can cure conjunctivitis. It is best not to dilute it, it will burn, but it is very useful. & gt 10 Mix lemon and salt and scrub for half an hour to remove oxidation stains. & gt 1 1 Giving lemons to teething babies will promote the development of taste buds. >12 lemon peel can remove some harmful substances such as formaldehyde. & gt 13 lemonade can treat sore throat. Lemon juice is mixed with a spoonful of sea salt and warm water to form an acidic solution, which can play a bactericidal role. >14 lemon can be used as astringent. Rub lemonade on your face in the morning, let the lemonade stay on your face for 10 minutes, and then wash it off with warm water to prevent sagging skin. Usage of fresh lemon > 0 1 Fresh lemon can be drunk directly: clean fresh lemon, cut into 2mm-thick slices, put it into a cup of cooling water after seed removal, and add a proper amount of rock sugar to drink. & gt02 Sugar-stained lemon: Wash the lemon, slice it, remove the seeds, put it into a porcelain jar or porcelain bottle with a layer of lemon and a layer of sugar according to the ratio of 65,438+0 kg of lemon slices and 2-3 kg of sugar, and drink it one week later (diabetics can use salting in the same way as sugar-stained, and the amount of salt is 25-30% of the amount of lemon) > Lemon is used for cooking: cooking is irritating. & gt Beauty of fresh lemon fruit: Wash and slice the lemon and put it in cold boiled water for 3-5 minutes, then it can be used to apply face, wipe body and wash hair. Long-term use can melt the spots on the face and body, and achieve the effect of hair like an ink waterfall, face like beautiful jade, body like coagulated fat and radiant. & gt05 Lemon Deodorization and Preservation: Putting 2~3 Jin of fresh lemon fruit naked in the refrigerator or room can play a very good role in removing the odor in the refrigerator or room; Slices in a pickle jar can remove white and make pickles crisp. Dietotherapy > 0 1 lemon tastes sweet and sour, and has the functions of entering the liver, resolving phlegm and relieving cough, promoting fluid production and strengthening the spleen > Indications: bronchitis, whooping cough, vitamin C deficiency, heatstroke, polydipsia, anorexia, wheezing, etc. & gt Lemons promote fluid production to relieve summer heat and stimulate appetite. Although it can't be eaten raw like other fruits, lemon peel is rich in aromatic volatile components, which can promote fluid production and relieve summer heat, stimulate appetite and strengthen the spleen. Summer is hot and humid, and many people are very tired. After working or studying for a long time, you often have a bad appetite. Drinking a cup of lemon soaked in water, the fresh and sour taste makes people feel refreshed and can open their appetite. & gt Lemon can also resolve phlegm. Lemon peel has stronger expectorant effect than citrus. Summer is hot and humid, if you don't pay attention to your diet.