If looking into the state of intermittent fasting, the work of Valter Longo is probably a good starting point. His group is presently trying to get intermittent

If looking into the state of intermittent fasting, the work of Valter Longo is probably a good starting point. His group is presently trying to get intermittent fasting past the FDA as a part of cancer treatments, which means he is doing more rigorous and more human-focused studies than most other groups I'm aware of. http://michelsonmedical.org/2014/12/26/igf-1-fasting-discussion-valter-longo/ http://michelsonmedical.org/2014/12/26/igf-1-fasting-discuss...