Then determine the required total energy, for example, light manual workers need 2200kcal for men, calculate the total number of * * * *, two for general fruits and vegetables, about 3 for meat, and between 2 and 3 for high-calorie food, and finally calculate the number of cereals.
For example, if 1 serving of vegetables is 500 grams, you can choose different vegetables to make up 500 grams. When you take the exam, you will send out a food composition list, and you can choose whatever you want. The same is true for other kinds of food, even if you like celery and eat celery for one day, but the score will not be high.
According to the distribution ratio of three meals, for example, 3:4:3, you can allocate the selected food to three meals according to the proportion, and then decide what to cook, whether to stir-fry celery with suitable meat or other things, and the oil is probably the same ratio.
Finally, after the menu of three meals is determined, the total calories are calculated in turn according to the consumption of various foods. This must be written down and then calculated to be between 95%- 105%. If the difference is too much, it needs to be adjusted, because the nutritional components of various foods are different.
The exchange method is relatively rough.