Sharni, It sounds as though you are taking the "right" approach to this. And by that I mean you are doing the research and being very aware. I think this will serve you well. When kathy1 mentioned malnutrition, my first thought was of my dad (had bypass and I know they are very different) and through his difficulties has to take daily iron pills and a monthly b-12 shot. For him his system has a hard time keeping enough of the necessary vitamins and minerals inside his body. But so long as you listen to your body and stay aware it shouldn't be a problem, only that you may have to get some of these things from other sources as my Dad has. I hope you find answers to all your questions and that you make the best choice for you. As I truly believe this is a very personal decision.