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. Full dinners and dreamy dinners make the swollen stomach oppress the surrounding organs. After a full meal, the intense work of the stomach, intestine, liver, gallbladder and pancreas will produce information to the brain and make the cells in the corresponding parts of the brain active. Once the "wave" of excitement spreads to other parts of the cerebral cortex, it will induce all kinds of dreams. Nightmares often make people feel tired, which will lead to neurasthenia and other diseases over time. Overeating and obese dinner will increase the concentration of amino acids and fatty acids in blood sugar, thus promoting the secretion of insulin in large quantities, while people generally have little activity at night and low calorie consumption. Excess calories will synthesize a lot of fat under the action of insulin, which will gradually make people fat. Therefore, middle-aged and elderly people should have a light dinner, and the calorie intake at dinner should not exceed 30% of the total calories in the whole day, which is conducive to preventing and controlling obesity. Dinner and diabetes If middle-aged and elderly people overeat for a long time and repeatedly stimulate a large amount of insulin secretion, it will often cause the burden of insulin B cells to increase, leading to failure and inducing diabetes. Eating too many calories in dinner and dinner with coronary heart disease will increase cholesterol in the blood, stimulate the liver to produce low-density and very low-density lipoprotein, and carry too much cholesterol to the arterial wall to accumulate, which becomes another main cause of arteriosclerosis and coronary heart disease. Dinner is about rocks. Urethral stones are related to dinner being too late. According to the measurement, the peak of micturition is usually 4-5 hours after meals. If dinner is too late, the peak of urination is in sleep, and urine stays in the bladder, which will form urethral stones over time. So don't be too late for dinner, usually around 18. Overeating and sudden death at dinner is not as good as eating enough at dinner, and drinking too much is easy to induce acute pancreatitis, which makes people go into shock during sleep. No matter how strong a person is, he will die because he is not rescued in time. If the jugular vein of biliary tract is hit by stones and trapped by ascaris, it will lead to chronic biliary tract infection, which is more likely to induce acute pancreatitis and sudden death. Dinner and intestinal cancer Most of the non-staple foods in a day are eaten at night, and activities are reduced. Protein is bound to have a part that cannot be digested and a small part that cannot be absorbed. These substances are affected by anaerobic bacteria in the large intestine, which will produce transaminase, ammonia, indole and other harmful substances. These toxic products will increase the burden of liver and kidney and stimulate the brain. Intestinal peristalsis is reduced during sleep, which relatively prolongs the residence time of these substances in the intestinal cavity and promotes the increase of the incidence of colorectal cancer. Eating too much meat at dinner, high blood pressure dinner will not only increase the burden on the stomach, but also make blood pressure suddenly rise. In addition, when people sleep, the blood flow rate is greatly slowed down, and a large amount of blood lipids will be deposited on the blood vessel wall, causing arteriosclerosis and making people get high blood pressure. According to scientific experiments, people who often eat vegetarian food for dinner generally have 2-3 times higher blood lipids than those who often eat vegetarian food, while people with high blood pressure and obesity are more harmful if they love vegetarian food for dinner. Chinese medicine believes that "stomach disharmony leads to anxiety". If you drink too much while eating, it will inevitably increase the burden on the gastrointestinal tract, and the information of intense work will continue to spread to the brain, making people sleepless and dreamy, and over time, it will easily cause diseases such as neurasthenia. Long-term overeating and repeated stimulation of insulin secretion in middle-aged people will often aggravate the burden of insulin β cells, lead to failure and induce diabetes. At the same time, if you eat too much dinner, some protein can't digest and absorb it. Under the action of intestinal bacteria, toxic substances will be produced, and intestinal peristalsis will slow down during sleep. Relatively prolonging the residence time of these substances in the intestine may promote the occurrence of colorectal cancer. Dinner is just sweet. It is not advisable to eat sweets often after meals and dinners. This is because the metabolic activities of sugar in liver, adipose tissue and muscle will change at different stages in 24 hours a day. In principle, the activity of substance metabolism changes with the change of sunlight intensity; Physically, it is strongly influenced by rest or activity. Sugar is digested and decomposed into sugar and glucose, which are absorbed by the human body and converted into energy and fat respectively. Because exercise can inhibit insulin secretion, it can also inhibit the conversion of sugar into fat. Therefore, exercise immediately after taking white sugar can inhibit the increase of neutral fat concentration in blood. And rest immediately after eating sugar, the result is the opposite, and it will make people fat over time. Dinner is not too late. Dinner should not be eaten too late, otherwise it is easy to suffer from urethral stones. Many people eat dinner because they work late, and go to bed soon after eating. When sleeping, blood flow slows down, urine excretion also slows down, and calcium in the diet is not only absorbed by the human body, but also discharged through the urethra. According to the measurement, the peak of micturition is usually 4 ~ 5 hours after meals. If you eat dinner too late, such as eating at eight or nine o'clock in the evening, the peak of urination will be after zero in the morning. People will sleep soundly at this time. High concentration of calcium salt and urine will stay in the urethra and combine with uric acid to form calcium oxalate. When the concentration is high, the crystals can precipitate and accumulate at normal body temperature to form stones. Therefore, in addition to drinking more water, we should eat dinner as soon as possible, so that the peak of excretion after meals can be advanced, and it is best to pee once and go to bed. Dinner is just meat. Medical research has found that people who often eat meat for dinner have three or four times higher blood lipids than those who often eat vegetarian food. People with hyperlipidemia and high blood pressure will add fuel to the fire if they often eat meat for dinner. Eating too much calories at dinner often leads to an increase in cholesterol, and too much cholesterol accumulates on the blood vessel wall, which will induce arteriosclerosis and coronary heart disease over time.