I write this post as a suggestion to the subject dharrison brought up in his post from earlier today:
* Loosing weight and particularly muscle weight during the fast *
Until day 33 or 34 of my fast, I kept working out on regular basis (daily), including pull-ups, swimming, flexibility, some yoga and so on.
Due to weakness on day 33-34, I stopped working out.
From nearly day 36 I started to lose significant muscle weight. Yet I didn't loose it as long as I worked out.
I remember that in a previous fast, I lost so much muscle weight within 10 days, and it took me a while to rebuild. That's why I tried to workout during the current fast. It worked!
Consider working out while fasting, and your muscle weight may remain.
Yet, be attentive to your body's needs. Reduce your regular workouts a bit, if needed. After day 30, I was forced to reduce my workouts. After 33-34 days, I decided to stop due to weakness. By the way, I got my normal energy back after at around day 36, but chose to not come back to active lifestyle and remained slow-paste.
My weight lose:
During the entire fast, I barely lost weight at all. I lost 11 pounds
within the first 10 days and as long as I worked out, my weight remained the same. I'm not sure of my current weight (day 39) as I haven't weighted myself since. Therefore, at the moment it's hard for me to -determine- whether it is working out that kept my weight intact. Yet, due to my previous experiences, I feel safe to presume so.
Good luck fasting and working out,