1, delay aging: lemon is rich in vitamin C, has a strong antioxidant effect, can effectively eliminate excess free radicals in the body, to avoid free radicals peroxidation, so as to achieve the purpose of delaying aging;

2, the prevention of cardiovascular disease: lemon is rich in vitamin C and vitamin P, which can help to enhance the elasticity and toughness of the blood vessels, thus preventing and treating high blood pressure and Myocardial infarction and other cardiovascular diseases;

3, spleen and stomach: lemon rind is rich in aromatic volatile components, can be born to relieve the summer heat, stomach and wake up the spleen, summer in general, summer humidity is heavy, many people will be mentally weak, a long time to work or study after the appetite will be bad, at this time if you drink a cup of lemonade, fresh and sour taste will make people's spirits, can open the appetite.