Nutritional Value Components of Lettuce
Nutritional Value Components of Lettuce, lettuce is a common daily food, but also is a relatively common and easy to buy vegetables. Not only is it nutritious, it is also rich in nutritional value and has some medicinal value. The following take a look at the nutritional value of lettuce components.
Lettuce nutritional value ingredients 1Lettuce nutritional value
Step 1 Lettuce is high in potassium, which is conducive to promoting urination, reducing the pressure on the atria, and is extremely beneficial to patients with high blood pressure and heart disease.
Step 2 contains a small amount of iodine, which has a significant impact on a person's basal metabolism, mental and physical development and even emotional regulation.
Step 3 is very rich in fluoride, which is involved in tooth and bone growth.
In addition, lettuce in a certain substance on the optic nerve stimulation, the ancient book records lettuce more food to make people eye paste, stop eating for a few days, can be restored on their own, so weak eyesight should not be eaten, there are eye diseases, especially night blindness should be eaten sparingly.
Effects and functions of lettuce
Lettuce taste sweet, cool, bitter, into the intestines, stomach meridian; has the benefit of the five viscera, pass through the meridian, clear the stomach heat, clearing the effect of heat diuretic; used for urinary incontinence, blood in the urine, breast milk can not be passed and other diseases.
The first step opens up the sparing, eliminating accumulation of gas: lettuce taste fresh and slightly bitter, can stimulate the secretion of digestive enzymes, enhance appetite. Its milky pulp can enhance the secretion of gastric juice, digestive glands and bile secretion, thus promoting the function of various digestive organs, which is especially beneficial for patients with weakened digestive function, reduced acidity in the digestive tract and constipation.
Step 2 diuretic breast: lettuce potassium content is much higher than the sodium content, which is conducive to the body's water-electrolyte balance, and promote urination and milk secretion. It has a certain therapeutic effect on high blood pressure, edema, and heart disease.
Step 3 strong body, anti-cancer: lettuce contains a variety of vitamins and minerals, has the role of regulating the function of the nervous system, which contains organic chemical content is rich in human absorption of iron, iron deficiency anemia patients are very favorable. The hot water extract of lettuce has a high inhibition rate of certain cancer cells, so it can be used to prevent and fight cancer.
Step 4: Lettuce contains a large amount of plant cellulose, can promote peristalsis of the intestinal wall, fluent digestive tract, help stool excretion, can be used to treat a variety of constipation.
How to eat lettuce
Lettuce is suitable for burning, mixing, choking, stir-frying and other cooking methods, but also can be used to make soups and ingredients and so on.
Lettuce is afraid of salt, salt should be less to taste.
When blanching lettuce, you must pay attention to the time and temperature, blanching too long, the temperature is too high will make lettuce soft, lose the crisp taste.
Lettuce is a traditional breast-enhancing vegetable, combined with beef containing B vitamins, it has the effect of regulating qi and blood, and can promote the supply of nutrients to the breast area.
Squeeze the water out of lettuce before it goes into the pot, which can increase the crunchiness of lettuce. However, from a nutritional point of view, the water should not be squeezed dry, which will lose a lot of water-soluble vitamins.
The nutritional value of lettuce ingredients 2
Originally from the Mediterranean region of lettuce, in the seventh century or so into our country, and soon won the national favorite. Lettuce is not only rich in nutritional value, but also extremely high in medicinal value. The Compendium of Materia Medica mentioned that Li Shizhen used lettuce soaked in wine to decoct water for mothers to take in order to enable them to secrete abundant milk.
Lettuce, also known as lettuce, white bamboo shoots, bamboo shoots, lettuce shoots, lettuce, lettuce, lettuce, contains carbohydrates, protein, fat, a large amount of dietary fiber, potassium, phosphorus, calcium, sodium, magnesium, folic acid, vitamin A, vitamin B1, vitamin B2, vitamin B6, vitamin E, vitamin K.
Lettuce leaves are rich in vitamins A, B1, B2, C and P, containing a considerable amount of iron salts, calcium, calcium and vitamin K.
Lettuce leaves are rich in vitamins A, B1, B2, C and P, and contain Quite rich in iron salts, calcium salts and phosphorus salts, for lettuce, has a high nutritional value. Children eat more lettuce on the growth and development is very beneficial, eat 200 grams of lettuce leaves per day, can meet the needs of carotene, eat 500 grams of lettuce leaves, can meet the needs of vitamin C.
Effects and functions of lettuce
1, lower blood pressure
Lettuce is a high-potassium, low-sodium vegetables, per 100 grams of lettuce containing 212 mg of potassium, containing 36,5 mg of sodium. Potassium is an essential element to maintain human life, it can make arterial dilation, reduce peripheral vascular resistance, promote urinary sodium excretion, reduce cardiovascular burden, so that hypertensive patients with arterial wall thickening has been reduced to achieve the purpose of reducing blood pressure. Hypertension, arrhythmia, often eat raw fresh lettuce, the efficacy is remarkable.
2, diuretic breast
Lettuce is rich in potassium ions, is 27 times the sodium content, is conducive to the body's water-electrolyte balance, promote urination. Lettuce contains more niacin, can increase milk secretion, is an important member of the maternal recipe.
3, increase fluoride blood
Lettuce is rich in 'fluorine', can participate in the formation of tooth enamel and dentin, involved in bone growth. Lettuce contains organic compounds rich in human absorbable iron, iron deficiency anemia patients is very beneficial, the iron contained in the role of organic acids and enzymes are easily absorbed by the body. The white pulp flowing from the stem of lettuce has a tranquilizing and hypnotic effect, and has the function of regulating the nervous system.
4, wide bowel laxative
Lettuce contains a lot of plant cellulose, which can promote peristalsis of the intestinal wall, facilitate the digestive tract, and help the excretion of stools, which can be used to treat various kinds of constipation.
5, anti-cancer
Lettuce contains an aromatic hydrocarbon hydroxylated lipids, for liver cancer, gastric cancer has a preventive effect, but also can alleviate the side effects of radiotherapy or chemotherapy for cancer patients, is a kind of anti-cancer vegetables.
6, open and ease, eliminate accumulation of gas
Chinese medicine believes that lettuce is bitter, cold, have the effect of clearing away heat and removing toxins, eliminating swelling and dispersing knots. Lettuce stimulates the secretion of digestive enzymes, enhance appetite, its milky pulp, can enhance gastric juice, secretion of digestive glands and bile secretion, on the weakening of digestive function, the digestive tract in the reduced acidity of the patient is particularly favorable.
The nutritional value of lettuce components 3
1, lettuce in the carbohydrate content is low, while inorganic salts, vitamins are richer, especially containing more niacin.
2, lettuce contains a certain amount of trace elements zinc, iron, especially lettuce in the iron is easily absorbed by the body, often eat fresh lettuce, can prevent and control iron deficiency anemia.
3, lettuce in the potassium ion content is rich, is 27 times the sodium content, is conducive to regulating the balance of salt in the body. For patients with high blood pressure and heart disease, it has the effect of promoting diuresis, lowering blood pressure and preventing heart rhythm disorders.
4, lettuce is rich in fluoride, has a protective effect on the teeth, involved in the biochemical process of bone, beneficial to children.
Taboo of lettuce
Modern medicine believes that lettuce is rich in sugar, vitamin C and calcium, phosphorus, iron and other components. Every 500 grams of lettuce contains about 12 milligrams of iron, which is basically the same as spinach.
Although lettuce is good, it should not be eaten more. There are two categories of people who are not suitable for eating lettuce. First, lettuce is bitter cold, where the spleen and stomach cold, it is not appropriate to eat; second, eye disease is not suitable to eat lettuce.
How to buy lettuce
Lettuce should generally be short and thick, not curved, neatly sized; thin skin, crispy, moisture, bamboo shoots not wilted, not hollow, no rust spots on the surface; not with yellow leaves, rotten leaves, not old, not moss; neatly trimmed and clean, no soil of the best quality. Leaves wilted flaccid, withered yellow leaves; stem skin thick, fiber; with old roots, soil for the second.
Storage method of lettuce
Lettuce will be bought into a container of cool water, once a few, flooded to lettuce trunk 1/3, placed indoors for 3-5 days, the leaves are still green, lettuce trunk is still fresh, peeled and fried to eat is still fresh and tasty.
Soak in ice-cold water to reduce the temperature to seven to eight degrees, use a towel to absorb the water, and then wrapped in damp paper towels and put in the refrigerator, you can prolong the freshness of lettuce time.