Very interesting to hear your successes in light of the immune cell turnover effect that prolonged fasting seems to have (Valter Longo's research).
FYI: these episodes also have a transcript and show notes not available at the youtube URL. Here they are...
[1] https://www.foundmyfitness.com/episodes/valter-longo
[2] https://www.foundmyfitness.com/episodes/valter-longo-2
[3] https://www.foundmyfitness.com/episodes/satchin-panda
[4] https://www.foundmyfitness.com/episodes/satchin-round-2
This discussion may also be relevant to ketogenic diets where BHB is produced. See these two episodes focused on research on the ketogenic diet...