A person needs to consume at least 1000 calories every day.
Two meal replacement milkshakes produce 200 calories × 2 = 400 calories.
Ordinary dinner is about 600 calories per meal.
Three meals add up to 1000 calories.
Normal people consume 2000-2400 calories a day.
1000- 1400 The lack of calories needs to be supplemented by burning fat (only when nutrition is balanced will fat be burned, otherwise it will only consume muscles, such as dieting. And the lost muscle will rebound immediately)
Spend 7000-9800 calories a week.
7700 calories = 1 kg fat
Reduce 0.9 1- 1.27 kg a week.
So it's about 4-5 kilograms a month.