Warning: It IS possible to take too much CBD oil. While you cannot fatally overdose on CBD and there are very few negative side effects, too much has been shown to cause drowsiness, lethargy, upset stomach, nausea and diarrhea. The exact amounts that lead to these side effects are unknown, which is why you should start with small amounts and slowly increase the dose over time until you experience your desired result. (1)
As a result, customers can now be confident that most companies out there are pretty legitimate in terms of the overall safety of their products. However, you should still keep your eyes peeled and do as much research as possible, as a lot of brands are still selling non-therapeutic hemp seed oils as “CBD oils,” when in fact they contain very little of the active compound at all.
CBD oil is most readily available as a tincture. This can be taken by applying a few drops under your tongue, holding in your mouth for a few moments so it can be absorbed, before swallowing. It can also be added to water or smoothies. A spray form is available (simply spritz under your tongue), as are capsules, gummies, creams that can be applied topically, and e-liquid for vape pens.
Most human studies of CBD have been done on people who have seizures, and the FDA recently approved the first CBD-based drug, Epidiolex, for rare forms of epilepsy. Clinical trials for other conditions are promising, but tiny. In one Brazilian study published in 2011 of people with generalized social anxiety disorder, for example, taking a 600-mg dose of CBD (higher than a typical dose from a tincture) lessened discomfort more than a placebo, but only a dozen people were given the pill.
Unlike THC, CBD will not make you high. That said, this doesn’t mean CBD is not at all psychoactive, as many assert, says Jahan Marcu, PhD, director of experimental pharmacology and behavior at the International Research Center on Cannabis and Mental Health in New York City: “CBD does change cognition. It affects mood, which is why people take it for anxiety. And some find that it makes them more alert.”
Another field in which CBD is creating a buzz is in the area of mood disorders like anxiety and depression. Both conditions have been treated with a variety of medications, courtesy of Big Pharma, that have had varying levels of success. Again, the long list of side effects can be off-putting to someone who just wants to get through the day without the sweaty tension of anxiety or the gray haze of depression.