Ever heard of the Natural Hygienist, Herbert Shelton? He was prosecuted several times for practising medicine without a license, although Natural Hygiene doesn't deal with drugs at all (in fact is totally against them), only life style componenets - like diet, sleep, living habits, fasting etc.
It seems that technically even advising someone to drink a glass of water could be construed as 'medical advice'.
Livnlearn
"The unexamined life is not worth living" - Socrates
