I'm not sure, but your doctor might have put you on a higher calorie level because you are a tall man and you may just require a bit more than us shorties.
I haven't had surgery yet, but I'll die if I can't tolerate my sugar free popsicles afterwards! I'm addicted. I've been slowly weaning myself off of sodas, and now for the past two months, I have only drunk water. Good luck to you, and yes, I remember Tab.