The nutritional value of lettuce
The content of carbohydrates in lettuce is low, while the content of inorganic salts and vitamins is relatively abundant, especially with more niacin. Niacin is an activator of insulin, and people with diabetes often eat lettuce, which improves sugar metabolism. Lettuce also contains a certain amount of trace elements zinc and iron, especially the iron in lettuce is easily absorbed by the body, often eating fresh lettuce, can prevent iron deficiency anemia. The content of potassium in lettuce is abundant, which is 27 times that of sodium salt, which is beneficial to the regulation of salt balance in vivo. For high blood pressure, heart disease and other patients, it has the effect of promoting diuresis, lowering blood pressure, and preventing heart rhythm disorders. Lettuce also has the functions of increasing appetite, stimulating secretion of digestive juice, promoting gastrointestinal motility and the like.
96.4 g per 100 g water content, protein 0.6 g, fat 0.1 g, carbohydrate 1.9 g, crude fiber 0.4 g, calcium 7 mg, phosphorus 31 mg, iron 2 mg, carotene 0.02 mg, thiamine 0.03 mg, nucleus Flavamine 0.02 mg, niacin 0.5 mg.
The content of carbohydrates in lettuce is low, while the content of inorganic salts and vitamins is relatively abundant, especially with more niacin. Niacin is an activator of insulin, and people with diabetes often eat lettuce, which improves sugar metabolism. Lettuce also contains a certain amount of trace elements zinc and iron, especially the iron in lettuce is easily absorbed by the body, often eating fresh lettuce, can prevent iron deficiency anemia. The content of potassium in lettuce is abundant, which is 27 times that of sodium salt, which is beneficial to the regulation of salt balance in vivo. For high blood pressure, heart disease and other patients, it has the effect of promoting diuresis, lowering blood pressure, and preventing heart rhythm disorders. Lettuce also has the functions of increasing appetite, stimulating secretion of digestive juice, promoting gastrointestinal motility and the like. However, if too much or regular consumption of lettuce, because lettuce lettuce compound on the optic nerve stimulation, will occur drowsiness and drowsiness poisoning reaction, leading to night blindness or other eye diseases induced, it is not appropriate to eat. The night blindness and eye diseases caused by eating more lettuce only need to stop eating lettuce and it will be improved in a few days. There are many nutrients in lettuce, including protein, fat, sugar, ash, vitamin A, vitamin B1, vitamin B2, vitamin c, trace elements such as calcium, phosphorus, iron, potassium, magnesium, silicon, and dietary fiber. The development of bones, hair, and skin helps people grow. In recent years, studies have found that lettuce contains an aromatic hydroxylated lipid, which can decompose carcinogenic nitrosamines in foods and prevent the formation of cancer cells. It has a preventive effect on the digestive system of liver cancer and gastric cancer. It can relieve cancer patients' response to radiotherapy or chemotherapy.
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