Well, I have to disagree with the replies here (most of them, at least). While on Atkins (and I have been having great success with it, by the way....32 pounds in about 3 months!), I decided for spiritual reasons to go on a 7-day fast. All I had during those 7 days was water and some other drinks that I use while on Atkins (diet Minute Maid lemonade, Propel, etc.). During that 7 days, I lost 9 pounds, and when I went off the fast, I just tried to be careful how I came off it for a couple days. Result? My Atkins progress seemed just fine. I appeared to still be in ketosis, and I only put back on 2 of those 9 pounds, which I quickly lost again in my regular Atkins WOE.

Not sure why so many here seem to think fasting is such a bad idea. But I just wanted to share my differing view....

steve