Lemon contains nicotinic acid and rich organic acids, and tastes extremely sour. Citric acid juice has a strong bactericidal effect. 2. Lemon has a strong aroma, which can remove the fishy smell of meat and aquatic products and make the meat more tender. Lemon can also promote the secretion of proteolytic enzymes in the stomach and increase gastrointestinal peristalsis. In the daily life of westerners, lemon is often used to make cold dishes and pickled lemon juice. 3. Lemon juice contains a lot of citrate, which can inhibit the crystallization of calcium salt, thus preventing the formation of kidney calculi, and even the formed stones can be dissolved. Therefore, eating lemon can prevent and treat kidney calculi's disease and reduce stones in some patients with chronic kidney calculi. 4. Eating lemon can also prevent and treat cardiovascular diseases, alleviate the role of calcium ions in promoting blood coagulation, and prevent and treat hypertension and myocardial infarction. Citric acid can contract and strengthen capillaries, reduce permeability, improve coagulation function and platelet number, shorten coagulation time and bleeding time by 365,438+0% ~ 765,438+0%, and has hemostatic effect. 5. Fresh lemon is rich in vitamins, which is a natural beauty product, can prevent and eliminate skin pigmentation, and has whitening effect; 6. Lemon raw food also has a good effect of preventing miscarriage and stopping vomiting, so lemon is a fruit suitable for women.