My doctor gave me a no sugar diet shake. She wants me to bring my sugar down. She wants me to lose 20 lbs. I haven't had a blood glucose tolerance test yet. I've been testing with bs monitor. The average has gone down from 158, to 132 2 hrs after a meal. A meal is usually protein like 2 eggs, milk with coffee, 1/4 orange or 2 of these no sugar dietshakes, mostly protein, about 100 calories each. I'm walking at work about 1/2 mile a day. Will this get my insulin working - get insulin into the cells - from insulin resistance?? Am I pre-diabetic? I'm 62 years old.