The food name watermelon, also known as water melon, cold melon and summer melon, can be called "the king of melons". Because it was introduced from the western regions in the Han Dynasty, it is called "watermelon". Watermelon tastes sweet and juicy, refreshing and thirst-quenching. It is a good fruit in midsummer. Watermelon contains almost all kinds of signature nutrients needed by human body except fat and cholesterol. It is the most nutritious, purest and safest food to eat. Nutritional efficacy Watermelon can clear away heat and relieve summer heat, remove annoyance and quench thirst. Watermelon contains a lot of water. When you have a fever, thirst, sweating and irritability due to acute fever, eating a piece of sweet, sandy and full of water will immediately improve your symptoms. Watermelon is a good doctor among fruits and vegetables in treating nephritis and lowering blood pressure. The sugar and salt it contains can diuretic and eliminate kidney inflammation; Protease can transform insoluble protein into soluble protein, which can increase the nutrition of patients with nephritis. It also contains substances that can lower blood pressure. After eating watermelon, the urine volume will increase obviously, which can reduce the content of bile pigment and make the stool unobstructed, which has a certain effect on treating jaundice. Fresh watermelon juice and tender watermelon skin can increase skin elasticity, reduce wrinkles and add luster. Therefore, watermelon not only has good edible value, but also is an efficient and economical beauty salon for ladies. If you want to be radiant, don't let go of watermelon. Applicable people can generally eat. People with nephritis and fever and beauty lovers are more suitable. 200 grams a day. Watermelon is cold and eats too much, but it's better to eat more watermelons in summer. In summer, the human body is short of water. Watermelon contains too much water, which can just replenish water, and it also contains too many vitamins. I am a good example. I suggest the landlord not to eat dinner, eat more vegetarian dishes and watermelons, drink more water and go to the toilet. On the one hand, it can help eliminate toxins in the body, on the other hand, I can be full. Since the summer, I have been full.