Hi Kim. I was banded 8/12 and am on a liquid diet as well. My diet allows me to start a proten supplement the fourth day. I have the Isopure vanilla powder that I blend into 8 oz of milk in the morning (I started the Protein early bcs I was getting hungry). I sip on that for a few hours and then move to Water before my "lunch" of broth, Jello, and juice.
Good luck!
Jen