Personally I prefer as natural as possible. Was never vaccinated as a kid, was born at home, went to the medical doctor twice growing up (once for a broken collar bone and once for a broken arm), don't take anything to numb my teeth for cavities, I've never even had an aspirin. I avoided caffeine growing up and usually only get it through tea nowdays. I've been to doctors as an adult but it is usually some sort of checkup for work.
I hardly ever get sick. If I do, there's usually a home remedy to help it (most often it falls to 'feed a cold, starve a fever'). I go to chiropractors often to stay healthy.
I do fall into eating American food more often than I should. The chemicals in that shit are just as bad as most things out there. Been doing better here in Tahiti. I think part of the reason many Tahitians are fat is due to McDonalds being the only fast food restaurant here. And the locals flock to it.
Not that I care what others do with their bodies, everyone around me smokes pot. They just know I don't want any and respect that (like civilized human beings).