I've never managed more than one day "in a row." I try to do it 2 to 4 times a month. If I don't, my weight stays exactly the same. Apparently I've reached the point where my normal calorie intake on Atkins is equal to the calories I expend. I believe I lose just about half a pound of actual weight each time I do the fat fast for a day.

I hate doing it, because I get the same feelings of hunger and deprivation that made other types of diets so hard for me.