Optifast ingredients

Last time I had surgery they tried to put me on protein shakes and it didn't go well at all as I was writhing on the floor in agony.  Body doesn't seem to like liquid protein at all.  

I was looking up the ingredients of optifast in preparation for meeting with the NUT and I see that the third ingredient is soy oil.  Problem.  I could probably take little bits of soy here and there and get by, but soy oil all day, every day for three weeks won't cut it.  Last time I ended up going to a pre-op diet of all food, but the kinds were tightly controlled.  It worked... my surgeon told me my liver was fine, and I lost something like 30lbs in a month.

I tried a good variety of shakes: non-dairy, gluten-free, no soy etc. and they all made me sick as a dog.  The only one that didn't make me sick was the Isopure, but I don't think it really does as much nutritionally as the optifast.  Has anybody else run into the problem of shake intolerance?  What did you do about it?

As the optifast is prescribed by the surgeon you'll really need to talk to him/her about it. The NUT isn't the one *****quires the optifast.

Yikes I didn't even think of what is in the Optifast! Thanks for letting me know about the Soy oil as I am allergic to soy. I wonder what they will suggest I take?!