You will find that most people here do the 5&1 program vs the full fast. You do need to be under a Drs. supervision if you are doing the full fast so that they can closely monitor you. I did ask before starting if there was a difference in weight loss between the 2 and the answer I got was a resounding NO. I do believe that most people here might have a day every now and then that they have 6 meal replacements and don't do the lean and green and this is fine once in a while but like I said before if you are going to do the full fast all the time you should be supervised by your Dr.
Hope this helps some
Lisa