With the bypass you will have to have sugar free or no sugar added for the rest of your life. If you eat something with high sugar content you will get whats called dumping syndrome. Vomiting, severe cramping and diarrehea. My doctor told me I shouldn't eat anything that has more than 4 grams of sugar if sugar is the third ingredient in the product.. I have stuck with that since my surgery which was 3 months ago and honestly you can't taste any difference with the sugar free. There are a few things I don't like. I don't care for instant sugar free pudding or swiss miss sugar free hot cocoa. You still have to watch the calorie count because sugar free does not mean calorie free.. With any of the procedures it is a complete life style change. But it is well worth it. I feel so much better, can do alot of things I couldn't do before. I have lost 70 lbs since my surgery. I no longer have diabetes and I should be off by blood pressure medicine soon.