Meal replacement powder's main function is to replace three meals. It takes a full-day meal replacement to be effective. It's no use replacing one meal with two meals! Because people don't eat, they will decompose sugar first and then fat. It takes enough time to decompose into fat, just as exercise starts with burning sugar to get energy, and then decomposes fat after 40 minutes. It is recommended to eat 2+5 meal replacement powder, complete meal replacement for 2 days and normal diet for 5 days! So you can lose weight and burn fat!