Hi there, thanks for all the feedback. I started out with 64 ozs, and ended up about doubling that, so I was drinking about 4 litre bottles per day which was about as much as I could get down and still be able to function at work without setting up shop in the bathroom! It still didn't help, I just couldn't get enough to drink, had cottonmouth, etc. I finished 2 weeks of fasting on saturday and besides being thirsty I loved it and felt fantastic through the whole thing, so I'd definitely do it again. I'm slowly transitioning back to food and after 2 days am already feeling a little less thirsty. Thanks again.