DETROIT – A few years ago hardly anyone had ever even heard of CBD. Now it's showing up in supplements, foods and even makeup.
The explosive growth in awareness has been fueled by scientifically unsubstantiated claims regarding its effectiveness in treating a wide range of diseases. As a chemical compound CBD has been known since the 1940s.
CBD stands for cannabidiol. It's one of dozens of substances called cannabinoids produced by the cannabis plant. The most familiar cannabinoid is THC, the compound in cannabis that has the effect of getting a person high. It's different than CBD.
While CBD and THC are extracted from cannabis, they have different effects. Human subject research on CBD and its effects have been limited.
According to University of Michigan College of Pharmacy Professor Gus Rosania, “We are getting closer to actually being able to study hemp and hemp derived CBD and what it’s doing.”
That’s because in December 2018 hemp, the form of cannabis sativa that does not produce a significant amount of the psychoactive compound THC, became federally legal.
While the legalization of cannabis at a state level is gradually moving across the U.S., a change in laws has opened the door for CBD to become federally legal across America.
“The varieties that produce low levels of THC, below 0.3 percent dry weight, those varieties are considered hemp,” Rosania said.