1. List the names of each meal: breakfast, lunch, dinner and any snacks or snacks arranged.

2. Write down the main food contained in each meal: record the name, weight and quantity of each dish, and describe its ingredients and condiments in as much detail as possible.

3. Calculate the nutritional components of each dish: Calculate the energy, protein, fat, carbohydrate, cellulose, vitamins and minerals of each dish according to the weight and quantity of ingredients contained in the dish.

4. Summarize the nutritional information of each meal: Calculate the total energy, protein, fat, carbohydrate, cellulose, vitamins and minerals of all dishes contained in each meal.

5. Assessment of dietary balance: By comparing the various nutrients provided for each meal with the recommended daily nutrient intake standard (such as the Dietary Guide for China Residents), we can assess whether the food we eat is diversified, balanced and healthy enough.

6. Simplify the data and make a composition table: summarize and simplify the nutritional information of each meal, and finally summarize the composition table of three meals a day.