Why are you hungry? Your liquid diet can consist of fresh green salads, yoghurt, oats, skim milk & an egg. The soup can also contain 1pc of chicken or fish, green veggies, spinach, etc - I just switched off from my usual OD'ing and actually feeling good about it!
Throw the ready made shakes out - you are just supporting another parallel commercial industry!
I'm pretty sure I can only have liquids 100% fruit juice, yogurt, jell-o and protein shakes no greens or eggs.. I'm going to call tomorrow but today they are not in the office.