In the past I have fasted for as long as a week. That was no food for a week. I did however drink watered down fruit juice and did 'eat' chicken and beef broth. I must have had a bad brat or something on Memorial Day so I've been ill the past two days and haven't eaten. I think I'm going to go a week again and see how I do. Any calories I get will be from watered down fruit juice or bullion. After the week I'm going to hit a SHTF diet of rice, beans and some scraps of meat and vegetables. Will pull the odd 'treat' out of my food stores but I'm going to keep it simple. I'll keep my daily routine of work and exercising the same to keep my physical activity up. Might as well see if I can do it now. Will keep you posted. If you have done the same or similar let us know.