I was always under the impression that, no, you don't need your gallbladder. This is the second time--very recently--that I've read about issues post gall bladder surgery. I will certainly keep that in mind for the future. Having had trouble, myself, recovering from colon surgery a number of years ago, I certainly sympathize with what you've gone through and are continuing to go through. Also, many of my family members haven't bought my books, and if they have bought any of them, I believe they haven't read them. Yeah, what is with that?