Mushrooms are the most commonly used psychedelic, study finds

By the numbers: 3.1% of adults reported using mushrooms, also known as psilocybin, in the past year, a new national survey found.

• About 12% U.S. adults reported having used mushrooms in their lifetime, while a similar share reported using LSD.
• 7.6% said they've taken MDMA, also known as ecstasy, during their lifetime.
• Less than 1% of U.S. adults reported using any psychedelics in the past month.

Where it stands: It's a critical time for federal officials to decide how to regulate psychedelics, said Beau Kilmer, lead author of the report and a senior policy researcher at RAND.

• "We saw this with alcohol, tobacco, we've seen this with cannabis as well," he added. "Once you have the companies and they've got their lobbyists, it makes it a lot harder to, for example, increase taxes or impose certain regulations."
• Alternatively, the federal government could sit back and allow a patchwork of state policies to take hold, the report says.
• It also said officials should craft policy with input from Indigenous communities who use psychedelics in cultural traditions.