You need to process it to get refined heroin in a form you can inject, but you don't really need to do much to get it in a form that can be eaten. The actual drug is there naturally.
> cocain is MAN MADE in that respect.
You can get high from chewing fresh coca leaves or making tea from them. That's just as natural as eating pot, and more natural than smoking it. The cocaine alkaloid is just as natural as THC
> Marijuana is grown, cut, and let dry. Period. So is tobacco (which is legal, so your > inclusion of nicotine is pretty idiodic).
Who said anything about illegal? You said all other drugs. You're a twat.