That's certainly what we've been told since the... seventies- when I last heard the word. But what if, what if... there really is something to it (and it's just too cheap to make an outrageous profit from)?
The absolute vitriol in the rebuttal above could alone kill the most virulent of cancer cells!
I'm not the biggest fan of Big Pharma for sure, but I don't have a particular dog in this fight. Laetrile could be complete quackery, or there could be something there. And it's also very interesting, that the major study this rebuttal quotes (the only one done on humans), was on advanced stage cancer patients- exactly what even Laetrile proponents say it is ineffective against (save for those south of the border anxious to make an American $).
I'm always particularly amused when the scientific establishment (ie- government) attempts to put down, ridicule and disavow anything "alternative" not by producing conclusive scientific evidence (the very hallmark of their existence), but by in turn putting out their own focused, emotional and anecdotal appeals and conjecture based solely on their reputation and beliefs (eg- nothing like dismissing UFO's with... swamp gas).