Hi,
I'm currently doing the pre-op diet. My date is June 1. The only shakes that I have been able to tolerate are Nutralite Meal Replacement Shakes. They are expensive, but taste pretty good. 140 calories, 15 grams of protein. I got them from a website called toyourhealth.com. It is supossed to be made with natural ingredients or something, so maybe that's why they are a littel pricey. Anyways, hope this helps. :wink2: