Lettuce contains more nutrients, such as protein, fat, vitamins, sugars, dietary fiber, trace elements and so on. It has diuretic, laxative, blood pressure lowering, appetizing, and digestion promoting effects, and can also lose weight and help treat diabetes.
Characteristics of lettuce
Lettuce, also known as lettuce, borage, lettuce, green bamboo shoots, bamboo shoots and green lettuce, is a lettuce plant in Compositae. It was originally grown in the coastal areas of China, and cultivated and wild all over China. Lettuce is a very common edible vegetable with crisp stems, which can be fried, cold-mixed, simmered, dried or pickled, and young leaves can also be eaten.
Lettuce has a certain degree of cold tolerance, like cold and afraid of cold, afraid of high temperature, and the growth in hot season is not good. It is a long-day crop, suitable for growing in sunny environment. Lettuce has certain requirements for soil and is suitable for planting in slightly acidic soil, with a pH value of about 6.0. Sandy loam and loam are the best soil for growing lettuce.
Efficacy and function of lettuce
1, promoting digestion: Lettuce is very rich in nutritional value, including 17 kinds of amino acids such as lettuce element and amino acid, and vitamin C, vitamin A and minerals are also very rich, which can enhance the secretion of digestive enzymes and bile, promote digestion, stimulate appetite, contain plant cellulose, and help constipation people excrete feces.
2, fire: it is especially easy to get angry when the weather is dry. In this case, eating more lettuce can not only replenish enough water for the human body, but also reduce the fire. Because lettuce has the effect of detoxification, it also has a positive effect on the prevention and healing of oral ulcers.
3, weight loss: lettuce has extremely low sugar content and is rich in hydrochloric acid. It is an activator of insulin. If you eat lettuce regularly, you can improve sugar metabolism, especially for diabetics. In addition, lettuce is high in water and low in calories, which can relieve hunger and play a role in losing weight.
4, regulating the nervous system: lettuce is very rich in vitamins and minerals, which can regulate the function of the nervous system, especially rich in iron absorbed by the human body. If you often eat fresh lettuce, it is very powerful for patients with iron deficiency anemia. It can also promote urination, lower blood pressure and prevent arrhythmia.
Lettuce taboo
Pay special attention when eating lettuce, because lettuce contains a lot of water-soluble inorganic salts and vitamins, which will lose nutrition when scalded with boiling water, so it can be cold after cleaning, peeling and shredding. In addition, elderly patients and people with dysmenorrhea need to eat it and cook it. In addition, people with spleen and stomach deficiency and cold are not suitable for eating more lettuce.