If you're a coward and don't want to munch on awful-tasting shrooms to go on a psychedelic odyssey, you can buy delicious edibles infused with their active ingredient instead: psilocybin.

But maybe you shouldn't, because new research suggests that you might be getting ripped off taking these — or even putting your health at risk.

After testing 12 edible "magic mushroom" products sold in Portland, Oregon, Richard van Breemen and his colleagues found absolutely zero traces of psilocybin in any of them, they reported in a new study published in the journal JAMA Network Open. And four appeared to contain no active, trip-inducing ingredients at all.

"We found no evidence of mushroom compounds of any kind, coming from any species," van Breemen, a pharmaceutical sciences professor at Oregon St

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