Hello and thank you for your question. If you are young, healthy, and have no other medical problems, you should do well with BBL if your blood sugars have been consistently under good control and your HgA1C is less than 6. If you have other medical problems or your sugars are not well-controlled, it is imperative that you optimize your medical health to give yourself the best chance for a safe surgery and optimal outcome. I hope this helps!Dr. Sean Kelishadi