The methods of counting and recording meals include paper records, APP records and watch records.

1. Paper record: You can use a paper calendar or diary to record the daily meal situation, including the meal time, place, food and other information. This method needs manual recording every day, which is troublesome and easy to miss or make mistakes.

2. APP record: There are many apps on the market that can record meals, such as "Food Diary" and "Food Record". These apps can automatically record the time and place of meals, or manually add meal information and mood, which is more convenient.

3. Watch record: Some smart watches or health bracelets can also record the meal situation, and judge whether they are eating by sensing the current change on the skin surface, so as to record the meal time and duration. This method is very convenient, but the accuracy may be biased.