Dr. Mehmet Oz is a well-known TV host who's known for offering his viewers medical advice. Oz has generated controversy in the past for embracing "alternative" (questionable) forms of medicine such as energy and faith healing techniques. But there's one area where Dr. Oz is actually promoting legitimate practices: medical marijuana.

This morning, Oz appeared on a Fox News program and was asked about medical marijuana. He said he approves of medical marijuana, and believes it could solve America's opioid crisis.

"The real story is the hypocrisy around medical marijuana," Dr. Oz said. "People think it's a gateway drug to narcotics. It may be the exit drug to get us out of the narcotic epidemic."

Oz later went on to criticize the federal government for classifying marijuana as a Class I narcotic alongside heroin, which prevents doctors and scientists from researching its medical benefits.

"We're not allowed to study it because it's a Schedule I drug, and I personally believe it could help," Oz said.

It's actually not the first time Oz has advocated for medical marijuana. In March 2015, he ran a segment on his show where he discussed using medicinal cannabis as an alternative to opioids. 

Considering his television audience, Dr. Oz might be able to influence more people about the benefits of medical marijuana than anyone else in the country