Answer
It’s quite simple. You lower your caloric intake by limiting when you eat.
The nomenclatures for the methods work like this:
- 16:8 (16 hours fasting, 8 allowed to eat), 20:4 (20 hours fasting, 4 allowed to eat), etc. It adds up to 24 hours.
- You also have 5:2 (5 days eating; 2 days fasting) which adds up to one week.
- You also have OMAD or 2MAD which is “one meal a day” or “two meals a day”, respectively.
To lose weight, calculate your TDEE and eat less than that amount of calories. It’s that easy.