We support health writers who wish to spread their work to a wider audience.  This article was submitted by Natalie Shae.

Note, the study cited in the article was very small with children under physician care but if you are a liver patient it is a cautionary note if you are considering CBD oil.  We are not aware of any research that would suggest using it more broadly but consult your doctor.

Liver Damage and CBD Oil

June 4, 2019 by Natalie Shae

The FDA has approved a CBD-based drug named Epidiolex®. The drug was researched and made by Greenwich Biosciences, and the company’s vice-president of U.S. professional relations, Alice Mead, has stated to the FDA that CBD is “potentially” a liver toxin. She said this during the FDA’s first public hearing on CBD oil on May 31, 2019.

What is CBD oil?

Cannabidiol oil is extracted from the hemp plant, which is in the same family as marijuana. Unlike THC in marijuana, CBD does not cause a “high” or chemical dependence. CBD that is extracted from the hemp plant is legal, but individual states have laws to regulate it.

Because CBD oil is not considered a drug, it can be a common additive in many products. This includes e-cigarettes (vape oil), lotions and various herbal supplements. It has also been shown to relieve symptoms of different disorders like epilepsy, anxiety and multiple sclerosis.

How does it impact the liver?

The few studies performed on how CBD affects the liver are not clear.

In one study, 10% of the subjects developed high liver enzymes—they had to stop using CBD for this reason. Other research suggests that CBD can improve liver function.

As determined by the studies done on Epidiolex®, CBD is metabolized by the liver. People with nonalcoholic steatohepatitis (NASH) are encouraged to limit over-the-counter (OTC) medications to avoid stressing the liver.

How much CBD is too much?

To further complicate the question, products with CBD oil may not give the exact amount listed on the package. Depending on the brand, the consumer may be using much more or less than they think. This is especially true of OTC supplements and e-cigarettes.

Now that CBD oil is appearing in different products, anyone with liver damage needs to be alert to this. A doctor or specialist should be consulted before adding it to the diet.