Three meals a day is the eating habit of our people, and it is also a traditional eating habit that conforms to nutrition and hygiene. As the saying goes, "Good breakfast, full lunch and little dinner" is very scientific. Generally speaking, there should not be much difference in the distribution of food for three meals. Medical research has proved that high-calorie diet should be eaten for breakfast and more for lunch. Dinner should be light. This is because people study more during the day, especially students in the morning, and the human body consumes more calories. After dinner, there are generally few activities, and the calories consumed are naturally less. Therefore, breakfast should be full of protein-rich food and eat well; Provide enough carbohydrate food for lunch, such as rice, steamed bread, etc., and eat enough; Dinner should be light and greasy, eat less and be 70% full. The correct distribution of three meals a day should be that breakfast accounts for 30-40% of the total meal, lunch accounts for 40-50%, and dinner accounts for 20-30%. The calorie content of dinner food should not exceed 30% of the calories needed for the whole day. The daily diet of senior high school students should also include the following four types of food:
(1) grain
(2) Vegetables and fruits
(3) protein class
(4) Oil, salt, sugar, etc.
A reasonable three meals a day includes not only a healthy diet and good eating habits, but also a reasonable dining system and reasonable cooking methods. Reasonable cooking methods can not only make food delicious, promote digestion and absorption, but also play a role in disinfection and sterilization, but we should pay attention to minimize the loss of nutrients during cooking. For example, excessive scrubbing when washing rice, high-temperature fried food, chopped fresh vegetables, soaking in water for a long time and boiling for a long time will all lead to the loss of nutrients.