Lettuce is very nutritious, and it can also promote diuresis and lactation, clear away heat and toxic materials, and reduce blood. Among them, the content of potassium in lettuce is 27 times that of sodium. Lettuce is rich in vitamins and is also good for the urinary system. Lettuce can also effectively treat hypertension and heart disease. And the iodine content is relatively high. Fluorine in lettuce can also help the formation of teeth or the growth of bones. Lettuce is also rich in lettuce, succinic acid, mannitol, lactic acid, malic acid and other nutrients. In particular, lettuce is rich in nicotinic acid, which is considered as a powerful activator of insulin. Can effectively improve metabolism and enter new functions. Therefore, it is also more suitable for diabetics. Lettuce is also called the king of cancer prevention in China, because its cancer prevention effect is much better than other cancer prevention foods.
However, lettuce is cold, and people suffering from eye diseases, diarrhea and spleen and stomach deficiency can't eat lettuce, especially cold lettuce.