I was told by a friend to have only a meal replacement shake four times a day for the first six days. He said that it would be a good jumpstart and as a detox method for the first few days of fat loss. I've been on a strict diet with only 500 calories before and I got so hungry that I barely made it. I lost 20lbs but I'm gaining it back. I know that I need to discipline myself even more but I'm just looking for a good jumpstart to the rest of my life.