Canada has similar rules for supplements; they have to have research backing their use to get an NPN number to allow commercial sale. However bulk herbs I believe are exempt from this.

It is good to push for research validating natural health products. We need to get more holistically minded people into the national associations like the Canadian Cancer Society if we want to see more research in the field. Right now it is dominate by the medical establishment and we are getting the predicable results of suppressing symptoms.