“According to the FDA and DEA, marijuana has not medical benefit or use. “
There is actually a lot of evidence that it has some medical benefits. And it is quite safe in the ordinary sense because the number of persons to have died from the acute effects of smoking marijuana appears to be zero — even if you go back through the entire history of the world! The FDA and DEA have to follow the lead of Congress here. Unfortunately.
What I do not understand is the OU putting a hechsher on a product that is a schedule I controlled substance (like heroin) and therefore illegal for any and all purposes in all fifty states and all five territories. While it should be no worse than a schedule II controlled substance (like cocaine) which is legal for medical use, that is not its current status.