However, medical research on marijuana is severely restricted by federal law.
Note that CBD oil is different from hemp oil – which comes from pressing cannabis seeds, and may not contain CBD – and hempseed oil, which is a source of essential fatty acids and contains no CBD. It’s a nutritional supplement, more like fish oil than CBD oil.
Hemp, marijuana and cannabanoidals
As interest in other cannabinoids, like cannabigerol, or CBG – which some are touting as the new CBD – continues to grow, so too grows the need for further medical research into cannabis.
Hemp, marijuana and CBD are all related, but they differ in significant ways. Here’s what you need to know about their legality, effects and potential health benefits.
Our recent study found that Americans perceive hemp and CBD to be more like over-the-counter medication and THC to be more like a prescription drug. Still, the average person in the U.S. does not view hemp, CBD, THC or even marijuana in the same light as illicit substances like meth and cocaine – even though both are classified by the DEA as having a lower potential for abuse than marijuana.
This article explains why a positive drug test can happen with CBD use, which types of CBD are most likely to trigger one, and what you can do to avoid it.
The active chemical in marijuana that gets detected in a positive drug test screening is THC. Most people are under the impression that CBD oil is THC-free, which is generally true. But not always.
Study of CBD Oil
There are several techniques for extracting CBD oil from the cannabis plant. The extraction method determines whether the CBD oil is an "isolate" or a “full-spectrum oil.”
For the study, 57 men took either CBD oil or a placebo (sugar pill) before a public-speaking event. The researchers based anxiety levels on measures like blood pressure and heart rate. They also used a fairly reliable test for mood states called the Visual Analog Mood Scale (VAMS).
A 2015 review of studies in the journal Neurotherapeutics suggests that CBD might help treat anxiety disorders.
Meredith Bull, ND, is a licensed naturopathic doctor with a private practice in Los Angeles. She helped co-author the first integrative geriatrics textbook, "Integrative Geriatric Medicine."
CBD oil may also increase liver enzymes (a marker of liver inflammation). People with liver disease should consult their healthcare provider before taking CBD oil and use it with caution. Regular blood liver enzyme level checks are recommended.