in his book Dr atkins actually says that occationally trying a different diet can be beneficial. he mentions the "all fruit diet," but says that diets such as these should not be done for more than two days. whereas you had mentioned juice on your fast, i thought the two were comparable.

but now, im very interested in this fasting idea. i know many others here, who are experienced low-carbers, often suggest upping caloric intake if people are not losing weight. but, the body is complicated. i will have to look into this.
i think i'd like to try.