I have a semi low BMI, I cannot lose any weight during my preop,still following NUT diet though to maintain in a healthy manner. I am with WTgirl,I have lost the weight, gained it back, plus more. I was thin most of my life. I just can't do this to myself anymore. Out of control eating, being much heavier and growing ,and health issues creeping in.These are the reasons I am using this as my tool, I know I can stick to a diet if I have some support, and I WANT this so badly!!