I have heard this from numerous people but I've been trying to verify this for sometime now and I find it extremely difficult to search for as when I do, google always gives me matches that simply talk about the basic digestive system functions.
Has anyone got any good sources for this?
I too have heard about digestion taking 75-80% of our nerve energy (when we are digesting, which is a much longer time when consuming a sad diet or high fat diet) but I looked a bit online and can't find any sources. I'm pretty sure I read it in some Natural Hygiene material. Sorry can't help more.