Lemon is also known as lemon fruit, foreign lemon, mother fruit, etc.. Because of its taste is very acidic, liver deficiency pregnant women are most happy to eat, so it is called mother fruit or mother son. Lemon is rich in citric acid, so it is known as "citric acid warehouse". Its fruit is juicy and crispy, with a strong aroma. Because of its acidic flavor, it can only be used as a high-quality seasoning to make beverages and dishes, cosmetics and medicines.

The gelatin and the vector element chromium in apples keep blood sugar stable, so apples are not only a healthy snack for diabetics, but also an essential fruit for anyone who wants to control blood sugar levels. Apples also protect against cancer and lead poisoning.

The effective combination is known as the holy grail of fruit juice. The effective combination of vitamin A, vitamin B1, vitamin B2, vitamin B6, vitamin C, and vitamin E in apples and citric acid, malic acid, high sodium and low potassium in lemons is known as the holy grail of juices