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Please write an article on the theme of "scientific diet and healthy life".
It is not advisable to work immediately without rest after meals, which will affect your health and is not desirable. Because after eating, the blood vessels in the gastrointestinal tract dilate, and the blood flowing to the gastrointestinal organs increases, which is beneficial to the digestion and absorption of food. If you work immediately after meals, it will force the blood to meet the needs of motor organs, resulting in insufficient blood supply to the gastrointestinal tract and reduced secretion of digestive juice. Over time, it will also lead to diseases such as indigestion and chronic gastroenteritis. Furthermore, the stomach is full of food after a meal, and it is easy to shake and pull the mesentery at work, which will cause abdominal discomfort, abdominal pain and gastroptosis. Therefore, it is not appropriate to work immediately after meals, and it is best to rest 1 hour before doing it. It is not advisable to drink tea after meals. Many people have the habit of drinking tea after putting down their rice bowls. In fact, this is not desirable. Because just after eating, the stomach is full of food, and the gastric juice is secreted vigorously. A large number of tea leaves enter the stomach, which will dilute the gastric juice and affect digestion. At the same time, it also increases the burden on the stomach and abdominal pressure, which is not good for the heart. Experts from Georgia Medical College pointed out that drinking strong tea after meals is even more unfavorable. Because tea contains caffeine and tannin, the former will excite nerves and cause insomnia; The latter combines with protein in food in the stomach, which will form indigestible solidified substances and affect the digestion and absorption of protein. It is not appropriate to loosen your belt after a meal. If you relax your belt after a meal, the intra-abdominal pressure will decrease, and the activity of digestive organs and the load of ligaments will increase. At this time, it is easy to cause digestive system diseases such as volvulus, intestinal obstruction, gastroptosis and epigastric discomfort. Therefore, it is not advisable to loosen your belt after meals. Avoid disciplining children while eating. Many parents often reprimand or beat and scold their children when they know that their children are not studying well or fighting outside, which is harmful to their children. First of all, children eat while crying. When sobbing, rice grains, bread crumbs and water can easily run into the trachea, causing undue pain to children. Secondly, the child had a big appetite before being reprimanded, but suddenly he was scolded by an adult. Due to strong external stimulation, his appetite may disappear and his saliva secretion will suddenly decrease or even stop. At this time, the children's meals can't be fully mixed with saliva, and the food balls are not lubricated. Especially when eating hard and rough food, it is easy to cut the esophagus, destroy the mucosal layer of gastrointestinal wall and cause serious inflammation. In addition, when food enters the stomach, it needs to be decomposed into tiny "particles" by digestive juice before it can be absorbed by the intestinal wall. Due to the command of the brain, the digestive system began to secrete digestive juice before eating. If children are reprimanded and beaten by adults, the food they eat in their stomachs will not be completely digested. This not only reduces its absorption rate, but also undigested food will increase the corruption of intestinal food and produce toxic substances, which will cause loss of appetite and diseases. Therefore, don't beat, scold or reprimand children when eating.

Scientists have found that many people become vegetarians unconsciously because they have been asked to eat less or even no meat for a long time. However, long-term abstinence from animal products will make some nutrients needed in the human body not be replenished in time, thus damaging some parts of the human body. Recently, American scientists put forward some suggestions on strengthening the nutritional structure of diet for vegetarians. With the strengthening of people's health awareness and the change of aesthetic concept, eating more vegetables and fruits has become a very important content of disease prevention and fitness. These gradual vegetarians, together with those vegetarians who have never set foot in meat for various reasons, constitute a large group. Years of scientific research show that although vegetarian habits have indisputable benefits in resisting cardiovascular diseases and preventing obesity, vegetarians often feel "ashamed" in front of jobs that require a lot of physical strength because people live in a rapidly developing modern social environment. Therefore, vegetarians need to pay more attention to nutritional collocation. ■ Pay attention to protein's supplement. Whether children or adult vegetarians, five or six kinds of foods containing high protein should be arranged in their daily meals, such as beans, nuts, seeds, tofu or other bean products, eggs or dairy products. Although there are many kinds of these foods, they can be eaten in moderation and with food. ■ Don't forget that calcium supplementation is a key element to keep the human body working normally. Vegetarians not only can't get calcium supplement from meat, but also can't get the necessary calcium supplement because they basically don't drink dairy products. Therefore, scientists suggest that vegetarians should not exclude dairy products such as milk when possible, and should eat dairy products in moderation. In addition, drinking soybean milk, eating soybeans, broccoli, calcium-fortified juice, cereals, etc. can all play an important role in supplementing calcium. Vegetarians should pay attention to that although green vegetables such as Chinese cabbage and mustard are considered to have high calcium content, not all calcium in dark green vegetables can be absorbed by the human body. For example, spinach and beet contain high oxalate, which will hinder the body from absorbing calcium. Scientists also pointed out that although vegetables can also be a channel for calcium supplementation, their effect is far less than that of dairy products. ■ Appropriate vitamin supplementation Scientists have found that although the eating habits of vegetarians belong to a "healthy diet", they are also "partial eclipse", so the supply of vitamin B 12 on them often becomes a big gap. Vegetarians who generally do not eat dairy products, eggs, fortified soybean milk and other foods should take vitamin B 12 every day. In addition, vegetarians should also take vitamin D to strengthen the absorption of calcium. Vegetarians still need fat scientists point out that vegetarians are tired of greasy food. Nevertheless, moderate intake of beneficial fat is not only beneficial to health, but also plays a role in preventing cancer. However, for vegetarians, because they don't eat fish, eggs and seafood, they often can't get this kind of fat. On the contrary, vegetarians can eat more foods such as linseed oil, soybean oil and walnuts. Scientists also pointed out that, generally speaking, a healthy diet should contain various elements and nutrients needed by the human body, so when emphasizing eating more vegetables and fruits, non-vegetable and fruit foods that can provide other important nutrients needed by the human body should not be excluded. For vegetarians whose animal food has reached an unacceptable level, it is necessary to carefully analyze their current diet structure, at least by using alternative foods or adding vitamins to make up for some nutritional gaps, so that they can maintain their accustomed diet structure without affecting the normal work of all parts of their bodies. For example, take a pack of Boleyl nutritional granules every day, because Boleyl contains bioactive omega3-3 polyunsaturated fatty acids and egg yolk lecithin, and trivalent chromium with biological activity is one of the most effective insulin enhancers, vitamin E and other essential nutrients for human body. This can avoid the nutritional imbalance of vegetarians and ensure good health.

What is the healthiest diet? Today, we will summarize some of the most classic healthy diet combinations for you! Nutritional collocation of common diets A balanced diet refers to a diet in which cereals, beans, meat, eggs, milk, vegetables, fruits, oils and other foods are properly matched in a day's diet. To sum up, the following 10 matches should be made. 1. Combination of coarse and fine grains: Adding coarse grains to the daily diet will help prevent diabetes, senile plaque and constipation. It also helps to lose weight. 2. Matching of staple food and non-staple food: staple food and non-staple food should be unified in daily diet. 3. Lean collocation: the ideal food for winter tonic: angelica and ginger mutton soup; Good for diuresis and dampness: red bean stewed carp soup; A good product for promoting lactation: boiled bean curd soup; Good educational products: Black sesame paste and six kinds of porridge (red rice porridge, green stalk porridge, jujube porridge, duck porridge, Laba porridge and bird's nest porridge) recorded in A Dream of Red Mansions, and "fairy porridge" (composed of Euryale ferox, yam and rice) found in Dunhuang art treasure house are typical representatives of dry and wet combination. 4. Color matching: Food is generally divided into five colors: white, red, green, black and yellow. One-day diet should take into account the above five colors of food. 5. Nutrition collocation: fat, carbohydrate and sodium are easy to be excessive; Protein, vitamins, some inorganic salts, water and dietary fiber are easy to lack; Foods with high protein and low fat include fish and shrimp, rabbit meat, silkworm chrysalis and lotus seeds. Foods rich in vitamins, inorganic salts and dietary fiber include vegetables, fruits and coarse grains. Water is an important nutrient. Drink more than 4 glasses of water every day. 6. acid-base matching: food is divided into acidic food and alkaline food. Mainly based on the food being ingested by the human body, the blood of the human body is finally acidic or alkaline. In recent years, due to excessive intake of meat food, blood acidification and rich diseases have been caused, which should be paid attention to. 7. Match calories with raw food: Eating raw food has become a fashion. Eating raw vegetables, fruits, fresh shrimps and whitebait can get more nutrition. Pay attention to food hygiene when eating raw food. 8. With skin and meat: Eating with belt meat is becoming a fashion. For example, quail eggs, oranges, jujubes, peanuts and so on. Eating with skin has higher nutritional value. 9. Sex and taste collocation: food is divided into four natures and five flavors. Four natures refer to cold, hot, warm and cool; Five flavors refer to pungent, sweet, sour, bitter and salty. According to the principle of "dialectical diet", different diseases should choose different flavors of food. The general principle is that "heat is cold, cold is hot, deficiency is tonic, but actually diarrhea." According to the principle of "adapting to the time", choose different foods in different seasons, such as warm foods: mutton, venison, bullwhip, ginger and so on. In winter, try to eat less cold food. Five flavors should also be matched, not just sweet and not bitter.