1. Lemon is neither hot nor cold, and belongs to temperate fruit. Lemon has the effects of promoting fluid production to quench thirst, clearing away heat and relieving summer-heat, relieving cough and resolving phlegm, invigorating spleen and nourishing stomach. Because lemon is rich in organic acids, it is beneficial to adjust the pH value of human body, and has a good improvement effect on people with anorexia, stomach-qi disharmony, bronchitis and heatstroke. Lemon is rich in vitamin C, which can not only whiten the skin, but also have certain antioxidant effect, and can also clear away heat and fire.

2. Lemon is rich in vitamin C and vitamin P, which can enhance the elasticity and toughness of blood vessels and prevent the symptoms of hypertension and myocardial infarction.

3. Lemon is a common sour fruit in life. Because of its extremely sour taste, it can also be used as seasoning in many cases, and it is rich in nutrition. Because lemon tastes sour, if the patient's gastrointestinal function is weak, it is not recommended to eat a lot of lemon to prevent gastrointestinal irritation and nausea and vomiting.