>stuff that is natural is time-tested Unfortunately "time" doesn't test for cancerogenicity, as laypeople are terrible at inferring causality that may span mon

>stuff that is natural is time-tested Unfortunately "time" doesn't test for cancerogenicity, as laypeople are terrible at inferring causality that may span months or years. Case in point [1]: several "herbal remedies" used in China for hundreds of years are linked to kidney failure and kidney cancer. We don't know if something is dangerous until we deliberately and scientifically test it. Given that "non-natural" stuff (e.g. GMO) is thoroughly tested, I would expect that it's way safer than "natural" one that was never really tested. [1]: http://www.telegraph.co.uk/news/health/1343598/Chinese-herb-remedy-linked-with-cancer-of-the-kidneys.html http://www.telegraph.co.uk/news/health/1343598/Chinese-herb-...