This might interest some of you - it is a documentary on the same topic - where a doctor goes ahead and explores intermittent fasting for longevity / reducing aging issues. He ends up trying it and becoming a convert.
This doctor (Dr Berg) also has a channel on the same - and provides some interesting easy to understand scientific explanations on different intermittent fasting related items. I remember the explanations on the body need for potassium was interesting.
A little more info on Dr Berg: he's a chiropractor doctor not a medically trained doctor. He has a lot of good information, but it's also wise to verify any of his info from other sources.
This doctor, Dr. Mirkin, is an MD, a sports physiologist and an active athlete. He has long been an advocate of intermittent fasting but recommends against long fasting. He documents all of his articles with the relevant references and sources:
https://vimeo.com/170735109
This doctor (Dr Berg) also has a channel on the same - and provides some interesting easy to understand scientific explanations on different intermittent fasting related items. I remember the explanations on the body need for potassium was interesting.
https://www.youtube.com/channel/UC3w193M5tYPJqF0Hi-7U-2g