Dinner is light: dinner should be light, pay attention to choose foods with less fat and easy digestion, and be careful not to overeat. Overnutrition at dinner, which can't be consumed, will accumulate in the body, causing obesity and affecting health. The best choice for dinner: noodles, rice porridge, fresh corn, beans, vegetarian stuffed buns, side dishes and fruit platters. It is also good to drink a small glass of rice wine or red wine with meals occasionally. Pay attention to the food mix, coarse and fine, dry and thin, meat and vegetables, cold and hot. Food collocation is closely related to nutritional balance. A bowl of instant noodles can only provide oil, a little protein and carbohydrates, so it is best to match a piece of fruit, a piece of meat or bean products to supplement protein, vitamins and cellulose. For the choice of a day's diet, such as eating hamburgers and fried chicken for lunch, you should eat some light food for dinner, especially vegetables. Poultry meat refers to chicken, duck, goose, pigeon, quail and other meat. The protein nutrition of poultry meat is almost the same as that of roughed meat, but the saturated fatty acid content is lower than that of livestock meat. Experts believe that eating poultry meat is more beneficial to health than eating livestock meat. Fish, fish muscle contains protein 15%-20%, and because muscle fiber is short and smooth, it is easier to digest than auspicious meat and miscellaneous meat. More importantly, the fat content of fish is only 1%-3%, and the main components are long-chain polyunsaturated fatty acids, such as EPA of eicosapentaenoic acid and DHA commonly known as "brain gold", accounting for 80% of the total fatty acids in marine fish. It is worth noting that EPA can reduce blood lipids and prevent coronary heart disease. DHA is necessary for the development of brain and retina of fetus and baby, so fish should be the first choice when choosing meat food. Vegetables contain a variety of minerals, vitamins and dietary fiber, which play an important role in human physiological activities. Vegetables can be roughly divided into three categories: leafy vegetables (such as Chinese cabbage, amaranth and Chinese flowering cabbage), melon eggplant (such as green pepper, cucumber and tomato) and roots (such as potatoes and carrots). Vegetables can provide vitamins such as folic acid, carotene and B vitamins. Among them, vitamin C, carotene and folic acid are high in dark leafy vegetables such as yellow, red and green. Green leafy vegetables are rich in minerals; However, oxalic acid in some vegetables (amaranth, spinach, cabbage, etc. ) will affect the absorption of the human body, so when cooking these vegetables, you should first blanch them with boiling water to remove oxalic acid. Experts suggest that adults should consume 500 grams of vegetables every day, of which 2/3 are leafy vegetables and 1/3 are melons, eggplants and roots. Dinner and obesity: If you eat too much dinner, the concentration of blood sugar, amino acids and fatty acids will increase, thus promoting the secretion of insulin. Because people generally have less activities at night, the calorie consumption is very low, and the excess calories synthesize a lot of fat under the action of insulin, which gradually makes people fat. Therefore, the dinner for middle-aged and elderly people should be light, and the calorie intake should not exceed 30% of the total calories in the whole day, which is conducive to preventing and controlling obesity. Dinner and stones: According to foreign experts' research, urinary calculi are related to dinner being too late. This is because the main component of urinary calculi is calcium, and the calcium contained in food is absorbed and utilized by the intestinal wall, and all the excess calcium is discharged from urine. The peak of human urination is usually 4-5 hours after a meal, but when dinner is eaten too late, most people stop their activities and go to bed, so all urine produced after a meal will be stored in the urinary tract and cannot be excreted in time. In this way, the calcium content of urine in the urinary tract will continue to increase, and urinary calculi will form over time. 270 patients with urinary calculi were investigated in Matsushita Hospital, Japan. Among them, 97 patients had dinner after 2 1, and 25 patients had the habit of sleeping after dinner. Dinner and hypertension: Eating too much meat at dinner will not only increase the burden on the stomach, but also make the blood in the body suddenly rise. In addition, when people sleep, the speed of blood circulation is greatly slowed down, and a large amount of blood lipids will be deposited on the blood vessel wall, thus causing atherosclerosis and making people very hypertensive. According to scientific experiments, people who often eat vegetarian food for dinner generally have 2-3 times higher blood lipids than those who eat vegetarian food, while people with high blood pressure and obesity are more harmful if they love vegetarian food for dinner. Dinner and coronary heart disease: excessive calorie intake at dinner can cause an increase in blood cholesterol; The high quality of dinner will stimulate the production of low density lipoprotein and very low density lipoprotein, and carry too much cholesterol to the arterial wall to accumulate, which will become another major cause of arteriosclerosis and coronary heart disease. Dinner and diabetes: If middle-aged people eat too much dinner for a long time and repeatedly stimulate a large amount of insulin secretion, it will often lead to premature failure of islet cells, and then diabetes will occur. Dinner and Intestinal Cancer: If most of the non-staple food in a day is eaten by a meal in the evening, and the activities are reduced, there must be a part of protein that cannot be digested, and a small part of digested products cannot be absorbed. These substances are affected by anaerobic bacteria in the large intestine, which will produce toxic substances such as aminotransferase and indole. These toxic products will increase the burden of liver and kidney and stimulate the brain. Intestinal peristalsis slows down during sleep, which relatively prolongs the residence time of these substances in the chest cavity, thus promoting the increase of the incidence of colorectal cancer. Dinner and sudden death: Overeating dinner, coupled with drinking too much, can easily induce acute pancreatitis, which will cause people to go into shock during sleep, and even strong people will die because they cannot be rescued in time. If the ampulla of biliary tract has impacted stone, ascaris obstruction and chronic biliary tract infection, it is easier to induce acute pancreatitis and die.