Cucumber contains a variety of nutrients, with a water content of 98%. Every 1g of fresh cucumber contains .6g of protein, .2g of fat and 2.g of carbohydrate. Protein contains essential amino acids such as arginine; There are many kinds of carbohydrates, including glucose, galactose, mannose, fructose and xylose. In addition, cucumber also contains crude fiber, vitamin B1, riboflavin, nicotinic acid, vitamin C and other vitamins. Cucumber was first used as medicine in Herbal Notes. Chinese medicine believes that it is cool, sweet and non-toxic, and enters the spleen, stomach and large intestine. Produce body fluid to quench thirst, relieve summer-heat, relieve swelling and diuresis, and treat sore throat, edema of limbs, heat dysentery and bloody stool.