Speaking only for myself I find that if I have little or no choice in what I have to eat I have no problems eating just that. Like when I did the optifast. I was making meals for my family but had no problems not eating because I knew that all I was supposed to be having was optifast. I think that this is similar, certainly a lot cheaper than buying optifast. Long term not ideal but for a couple of weeks? Through in some supplements and it probably isn't half bad.