supperfield

How often did you have, ahh, the shits? I ask because I've been across Asia and to Malawi and occasionally the local food and hygiene standards can give me diarrhoea. Meanwhile, was there any local food you said "oh no way" to?

I don't want to be that guy that says this, but the Wim Hof method is in some senses directly related to what you have been researching. I am very surprised you have not been in contact with him. It's a tried and tested method.