Generally speaking, the staple food and non-staple food for three meals a day should be matched in thickness, and animal food and plant food should have a certain proportion. It is best to eat some beans, potatoes and fresh vegetables every day.
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.
The scientific distribution of three meals a day is determined according to everyone's physiological condition and work needs. According to the amount of food, the ratio of breakfast, lunch and dinner is 3: 4: 3. If someone eats 500 grams of staple food every day, it is more appropriate to eat 150 grams in the morning and evening, and 200 grams at noon. ?
The quality of three meals has its own emphasis. Breakfast is nutritious, lunch is comprehensive and dinner is light. ?
Nutritional breakfast: The foods that can be selected in the breakfast menu are: cereal bread, milk, yogurt, soybean milk, boiled eggs, lean ham or beef, chicken, freshly squeezed vegetables or fruit juice, so as to ensure the intake of protein and vitamins. ?
A hearty lunch: lunch requires a full range of foods, which can provide various nutrients, relieve work pressure and adjust mental state. You can spend more time matching yourself with a reasonable diet: Chinese fast food, mixed fried rice, fried noodles with shredded chicken, steak, pork chop, hamburger, green salad or fruit salad, plus a soup. ?
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. ?
People who eat three meals a day eat not only to fill their stomachs or hunger, but also to ensure the normal development and health of their bodies. Experiments show that the protein digestion and absorption rate in food is 85% for three meals a day; If it is changed to two meals a day, and each meal eats half of the whole day's food, protein's digestion and absorption rate is only 75%.
Therefore, according to the living habits of our people, generally speaking, three meals a day is reasonable. At the same time, it should be noted that the interval between two meals should be appropriate. Too long an interval will cause a high degree of hunger and affect people's labor and work efficiency; If the interval is too short and the last meal has not been emptied in the stomach, then eating the next meal will make the digestive organs not get proper rest, and the digestive function will gradually decline, affecting appetite and digestion. Generally, the residence time of mixed food in the stomach is about 4-5 hours, and the interval between meals is 4-5 hours. If it is 5 ~ 6 hours, it basically meets the requirements. ?
Biological clock and three meals a day: Modern research has proved that digestive enzymes in the human body are particularly active in the morning, noon and evening, which shows that when people eat is controlled by biological clock. ?
Brain and three meals a day: the human brain accounts for a large proportion of the daily energy consumption of the human body, and the energy supply of the brain can only be glucose, which is about110 ~145g per day. The liver can only provide about 50 grams of glucose per meal at most. Three meals a day, the liver can provide enough glucose for the human brain. ?
Digestive organs and three meals a day: solid food takes about 30 ~ 60 seconds from esophagus to stomach, and reaches small intestine after staying in stomach for 4 hours. Therefore, the interval between three meals a day is 4 to 5 hours, which is also reasonable from the perspective of digestion. ?