The Science of Fasting

I have a friend of mine who lost 100lbs and kicked diabetes fasting. guy was over 300lbs at one point and took control of his life. His doctor and his friends got worried about him because he got skinny so quick. He did become a little preachy about sugar.
understandable because of the lifestyle change. Kinda like if you quit smoking crack you're most likely to tell people " yeah that crack is bad for you." lol.

My ex-girlfriend and I both did the master cleanse back in 2010 or so and I went 42 consecutive days with no solid foods. Just the lemonade concoction that you drink while doing it. I lost the 75+ pounds that I put on when I quit doing dope and drinking that I never put back on (because when I started eating again, I paid attention and ate about half as much food as I did pre-fast) and never had any energy issues or anything like that after the first couple of days doing it. We planned on doing it for 30 days but for some odd reason weren't ready to stop for almost another two weeks.

Back then, I was still a vegetarian but have since gone back to full carnivore. Fasting is a wonderful experience if you're doing it right and for the right reasons. Ever since doing that master cleanse, I've never wanted to do it again, but I do fast for 5 days every six months. I'm actually starting the first one of this year on Ash Wednesday. I'll do the second one starting on the day after Labor Day. Using the holidays makes it easier to remember and easier to be held accountable when many people expect me to be fasting on those occasions. I'll be eating a lot of Dong Phuong king cake between now and then.

I'm looking forward to checking out the documentary in the OP. People's expewrience with fasting is always interesting to me. Going back to pre-biblical times, people have used fasting for all kinds of different physical and spiritual reasons and have had very different results depending on the motivation and method used. The hardest thing about fasting for me is easing myself back onto solid foods when it's over. I don't want soup for two days when my stomach gets its first taste of food, I want a damn filet cooked medium rare - but I know the hell that would cause my delicate GI system and follow the rules because of it.