I don't think anyone claims it does. The medical claims are that it reduces nausea and increases appetite. Both of these claims seem to be true.
True, but isn’t the beneficial part of pot, “thc” obtainable in pill form?
I'm neither a doctor nor a cancer patient, and I can think of at least three other drugs that have the same effect. I pot is so effective, why not just isolate the compounds that produce these benefits?
Because "medical" marijuana is a trojan horse, nothing more.