Lettuce is a vegetable with high nutritional value and rich vitamins. Lettuce is a kind of vegetable from abroad, which was first born in the Mediterranean coast and later spread to China. Lettuce is generally grown in the south, but less in the north. Eating more lettuce can promote diuresis and lactation, and eating more lettuce can also prevent cancer. Lettuce is good, but some people are not suitable for it, such as people with eye diseases.

Lettuce is an annual or biennial herb in Compositae, which is native to the coastal areas of China. At the beginning of the 7th century, it was introduced to China via West Asia, where it was widely cultivated. Lettuce is divided into stems and leaves. The former is cultivated everywhere, while the latter is mostly cultivated in the south. It is one of the important vegetables in spring, autumn and winter.

Efficacy and function of lettuce: lettuce tastes sweet, cool and bitter, and enters the stomach; Has the effects of benefiting five internal organs, dredging meridians, clearing stomach heat, and clearing away heat and promoting diuresis; It can be used for dysuria, hematuria, and mammary obstruction.

The role of lettuce:

1.

Lettuce tastes fresh and slightly bitter, which can stimulate the secretion of digestive enzymes and increase appetite. Its emulsion can enhance the secretion of gastric juice, digestive gland and bile, thus promoting the functions of various digestive organs, which is especially beneficial to patients with weakened digestive function, decreased acidity of digestive tract and constipation.

2. Diuretion and lactation

The potassium content of lettuce is much higher than that of sodium, which is beneficial to the balance of water and electrolyte in the body and promotes urination and milk secretion. It has a certain dietotherapy effect on patients with hypertension, edema and heart disease.

3. Keep fit and prevent cancer.

Lettuce contains a variety of vitamins and minerals, which can regulate the function of nervous system. Its organic matter is rich in iron that can be absorbed by human body, which is very beneficial to patients with iron deficiency anemia. The hot water extract of lettuce has a high inhibitory rate on some cancer cells, so it can be used to prevent cancer.

Relax the intestines

Lettuce contains a lot of plant cellulose, which can promote intestinal peristalsis, dredge digestive tract and help defecation, and can be used to treat various constipation.

Nutritional value of lettuce;

1. Lettuce is high in potassium, which is beneficial to diuresis and relieve atrial pressure, and is extremely beneficial to patients with hypertension and heart disease.

2. It contains a small amount of iodine, which has a great influence on people's basic metabolism, physical and mental development and even emotional regulation.

3. It is rich in fluorine and can participate in the growth of teeth and bones.

In addition, some substances in lettuce can stimulate the optic nerve. According to ancient books, eating more lettuce makes people's eyes paste, and they can recover by themselves after stopping eating for a few days. Therefore, people with poor eyesight should not eat more, and people with eye diseases, especially night blindness, should also eat less.

Efficacy, for dysuria, hematuria, galactorrhea and other diseases.