I once did Lighter Life which is a VLCD and it honestly nesrly killed me!! Mr doctor was horrified and the state I was in and was appauled that the nurse signed the form for me to do it, thank god I went to the docs when I did otherwise I might not be here now!!
I know what you mean about not having something, crisps were my main problem and I don't miss them at all now and I used to eat at least 2 bags a day, if I want something like that I will have snac a jacks! xx