Need info. on Protein.

I am diebetic and takeing protein shakes that the doctor told me, but they are high in sugar. I haven't had the surgery, yet. I am trying to loose some weight before surgery. Any sugar-free protein shakes?

I also am diabetic. I like MUSCLE MILK. I think it comes in strawberry, vanilla & chocolate. I like the chocolate, it tastes like a thick rich shake. It has 230 calories, 450mg potassium, 180mg sodium, 5mg iron, 400mg calcium, 22g protein, 5g sugar, 11g total carbs & 5g cholesterol. It comes in 11oz. single serving cartons. I am about to seriously start trying to lose the 30lbs. my doc required before he'll do the surgery...Eve