Naturalist
It is very important not to fast beyond your capacity. One cannot simply rely on how much body fat a person has to decide how long to fast that person. Even obese individuals can develop signs of starvation while still overweight if their muscle reserves fall to dangerously low levels while their fat reserves are still adequate. This would occur only when the fast was excessively prolonged, and has been reported in such patients who have fasted for many months. Cardiac failure could occur in patients who no longer have skeletal muscle reserve and who continue to fast. For this reason, I do not recommend a fast of more than 50 days even for obese individuals who feel well and look as though they could fast safely for months.
After the protein-sparing phase of the fast begins, the body still requires a small quantity of muscle reserves to maintain an adequate level of glucose and other nutrients. If severely obese individuals fast long enough, they may still be overweight, but because their body habitat was mostly fat, not muscle, they could exhaust their muscle reserves while still maintaining an illusion of having sufficient nutrient reserves in their tissues to continue fasting. This gives the false impression that it is safe for them to continue to fast for a very long period of time, when actually, after fasting this long, their muscle reserves are depleted. This is from the book "Fasting and Eating for Health" by Joel Fuhrman, M.D.
Gamer4Life, I hope this helps you decide how long you want to fast. Dr. Fuhrman himself fasted for 46 days. He stated he was able to attend college during the first 10 days of his fast. His time was spent in bed toward the end of it.
To fast 100 days would be very dangerous. You would most likely not survive.
Have you checked out the
Master Cleanse Forum or the juice fasting forum. While these are not true fasts, you may want to use them in addition to water fasting.
Whatever you decide to do, I wish you great success!