The assumption that all naturally occurring compounds from food are safe is false, and the assumption that only purified pharmaceutical molecules have utility is also false.

“people who think that everything that comes from naturally occurring foods, plants, etcetera, things that grow out of the ground, that that's all safe, that's not true. And people that think that pharmaceuticals are the if it's not evidence with the purified molecule, then something's not of utility. Well, that's certainly not true.”