What harm does eating watermelon do to the body every day in hot weather?

Eating watermelon often can help digestion. Summer is the season when watermelons are on the market in large quantities. People like to eat sweet and juicy watermelon to cool off the heat. What are the benefits of eating watermelon? What problems should we pay attention to? Watermelon is also called "summer melon", because it was introduced from the western regions in Han Dynasty, so it is called "watermelon". Eat watermelon in hot weather, but don't take medicine when you are sick. According to Compendium of Materia Medica, watermelon is sweet in taste, cold in nature, enters the heart and spleen meridian, and has the effects of clearing away heat and relieving summer heat, relieving cough and relieving annoyance. It is mainly used to treat heatstroke, fever, polydipsia, dysuria and other diseases, as well as hypertension, nephritis, hepatitis, cholecystitis and jaundice. The "bitter summer people" with poor appetite and thin body in midsummer often eat watermelon to help digestion, promote metabolism and nourish the body. Eating watermelon should also be "particular". The following people should pay more attention to how sweet the juice is. Watermelon is a fruit that people must eat every day in summer. However, not everyone can eat watermelon, even those who can eat it should pay attention to the scientific eating method. The sugar content of watermelon eaten by diabetics is about 5%, mainly glucose, sucrose and some fructose, which means that eating watermelon will increase blood sugar. Normal people can keep their blood sugar and urine sugar at a normal level because they can secrete insulin in time. People with diabetes are different. Eating too much watermelon in a short time will not only increase blood sugar, but also lead to acidosis and even life-threatening due to metabolic disorder. The daily intake of carbohydrates (carbohydrates) by diabetics needs to be strictly controlled. Therefore, if you eat watermelon many times a day, you should reduce the amount of meals and flour products (carbohydrates) accordingly, so as not to aggravate your illness. In patients with renal insufficiency, the function of expelling water from the body is greatly reduced, so edema of lower limbs or whole body often occurs. If this kind of patients eat too much watermelon, they will consume too much water and can't excrete excess water in time, which will lead to excessive water storage in the body and increased blood volume, which will not only aggravate edema, but also easily induce acute heart failure. Therefore, patients with renal insufficiency should eat less or not eat watermelon. In the early stage of cold, Chinese medicine believes that both wind-cold cold and wind-heat cold belong to the early exterior syndrome, and divergent treatment should be taken to treat them from the exterior. It is believed that the attack will aggravate the condition before the surface is solved. Watermelon has the function of clearing away heat. Eating watermelon at this time will aggravate the cold or prolong the course of disease. Oral ulcers in patients with oral ulcers are believed by Chinese medicine to be caused by internal heat due to yin deficiency and disturbance of virtual fire. Because watermelon has diuretic effect. If people with oral ulcers eat more watermelons, the water needed for the recovery of oral ulcers will be discharged too much, which will aggravate the internal heat due to yin deficiency, lengthen the course of disease and make it difficult to heal. Maternal women's physique is relatively weak. Chinese medicine believes that eating more watermelon will be too cold and damage the spleen and stomach. Watermelon should not be eaten before and after meals, because a large amount of water in watermelon will dilute the digestive juice in the stomach and affect the digestion and absorption of food, and eating watermelon in large quantities before meals will occupy the volume of the stomach and greatly reduce the intake of various nutrients, especially for children, pregnant women and lactating mothers. For people who want to lose weight by dieting, eating watermelon before meals is a good way to reduce their food intake. Watermelon should not be eaten more, because watermelon is a "cold food". Anyone who eats too much will hurt the spleen and stomach, leading to poor appetite, indigestion, decreased gastrointestinal resistance and abdominal distension and diarrhea. Eat less ice watermelons Although eating ice watermelons on a hot day is very effective in relieving summer heat, it is very irritating to the stomach and is easy to harm the spleen and stomach, so we should pay attention to grasping the delicious temperature and quantity. Watermelon is best placed on the lowest floor of the refrigerator, where the temperature is about 8- 10℃, and the temperature is also the best. Don't eat more than 500 grams of watermelon at a time. Chew slowly. For people with dental caries (tooth decay) and tooth allergies, they will feel sour and painful after catching a cold, and people with poor gastrointestinal function are not suitable for eating iced watermelons. Frozen watermelon hurts the stomach easily. Recently, many people have suffered from stomach pain, pharyngitis or toothache because of their gluttony for frozen watermelons. The doctor reminded that eating frozen watermelon is an unscientific eating habit and harmful to health. In summer, watermelon is a good food for people to relieve summer heat. Many people like to buy watermelons and put them in the refrigerator. Even some old people enjoy it. Because watermelon is cold and sweet, the water in the pulp often forms ice crystals after cold storage. When eating, the oral cavity will suddenly be stimulated, resulting in rapid cooling of salivary glands, tongue taste nerves and periodontal nerves, and sometimes even paralysis. This will cause adverse reactions such as pharyngitis or toothache. In addition, eating more frozen watermelons will hurt the spleen and stomach, affect the secretion of gastric juice, reduce appetite and lead to indigestion. For the elderly with decreased digestive function, eating frozen watermelon is easy to cause anorexia, abdominal pain, diarrhea and other gastrointestinal diseases. In addition, people with spleen and stomach deficiency and cold, dyspepsia and loose stool should also eat less. Eating too much will lead to abdominal distension, diarrhea, loss of appetite and accumulation of cold to help damp.