Lettuce, also known as lettuce, raw bamboo shoots, and gold dishes, is very common in our daily lives. It can be bought everywhere, and it is very cheap. Everyone eats at ordinary times, but does it really help us understand what it does for us? Today Xiao Bian introduced the efficacy, role and nutritional value of lettuce.
The efficacy of lettuce
1, lower blood pressure
Lettuce is a high-potassium, low-sodium vegetable containing 212 mg of potassium per kilogram of lettuce and 36.5 mg of sodium. Potassium is an essential element in maintaining human life. It can expand arteries, reduce peripheral vascular resistance, promote urinary sodium excretion, reduce cardiovascular burden, and reduce arterial wall thickening in hypertensive patients, reducing blood pressure. Hypertension, irregular heartbeat, eat fresh lettuce, a significant effect.
2, open up the benefits, consumer product under the gas
Lettuce taste fresh and slightly bitter, can stimulate the secretion of digestive enzymes, increase appetite. Its milky serum enhances the secretion of gastric juices, digestive glands, and bile secretion, thereby promoting the function of various digestive organs. It is particularly beneficial to patients with weakened digestive function, decreased acidity in the digestive tract, and constipation.
3, diuretic milk
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 the secretion of urine and milk. People with hypertension, edema, and heart disease have a certain therapeutic effect.
4, strong body, anti-cancer anti-cancer
Lettuce contains a variety of vitamins and minerals, has a role in regulating the function of the nervous system, and its contained organic content is rich in the body can absorb iron, is very beneficial to patients with iron deficiency anemia. The hot water extract of lettuce has a high inhibitory effect on certain cancer cells, so it can also be used to prevent cancer and cancer.
5, wide bowel purge
Lettuce contains a large amount of plant cellulose, can promote peristalsis of the intestine, facilitate the digestive tract, help excretion of the stool, can be used to treat various constipation.
6, increase fluoride and blood
Lettuce is rich in fluoride, can participate in the formation of enamel and dentin, participate in bone growth. The organic compounds contained in lettuce are rich in iron that can be absorbed by the human body and are very beneficial to iron deficiency anemia patients. The iron contained in lettuce is easily absorbed by the body under the action of organic acids and enzymes. White slurry out of the stem of the lettuce has soothing and hypnotic effect, which has the function of regulating the nervous system.
The nutritional value of lettuce
1. The high content of potassium in lettuces helps to promote urination and reduce the pressure on the atrium. It is extremely beneficial to patients with hypertension and heart disease.
2, contains a small amount of iodine, it has a major impact on human basal metabolism, mental and physical development and even emotion planning.
3, contains a very rich fluorine, can participate in the growth of teeth and bone.
Dietary taboos for lettuce
Although lettuce is good, it cannot be eaten too much. There are two types of people who are not suitable for eating lettuce. First, bitter cold lettuce, where spleen and stomach Deficiency, should not eat; Second, there are eye diseases who are also not suitable to eat lettuce, ancient records of lettuce eat more people make things googling, a few days to stop, you can recover on their own, so visually impaired people should not eat .
How to choose lettuce?
1, take a look at the leaves
Lettuce leaves should be green and tender, not dried and withered. Under normal circumstances, if the leaves of lettuce are very green, it can indicate that the lettuce is very fresh, the fresh lettuce water is more, the taste is very good, so the fresh is good lettuce The first element.
2, holding the rod of lettuce
Lettuce fresh water is more, it should be a certain degree of hardness, and when it feels a bit soft, so long that has lost too much water, that is to say not enough fresh.
3, take a look at the cross section
Lettuce is divided into two kinds, a very thick skin, there is a very thin skin, can be seen through a cross section to see. Under normal circumstances, the skin is thin and looks very distinct between the skin and the meat. This lettuce is crispy when eaten fresh, and the leather does not take up too much weight.
4, see lettuce meat color and whether hollow
Some lettuces look very good, especially when fresh, but they don't look good. If you look at lettuce meat, you will find that some of them are dark green and some are greenish yellow. This kind of green food is naturally green and deep. This needs attention.
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