Gloss and Vickrey conducted a Cochrane systematic review of the use of CBD in the treatment of epilepsy (11). Their methodology included only those trials that were randomized and controlled and excluded case series, case reports, and expert opinion. They were able to identify only 4 randomized controlled studies reported in the literature, and they included a letter to the editor and an abstract. The total number of subjects enrolled in these studies was 48 (11–14). While only four studies and a letter to the editor were in the actual analysis, the authors included a complete reference listing of all articles reviewed for inclusion.
Our Best Value pick is CBDistillery, which offers a full spectrum CBD oil containing naturally occurring cannabinoids and terpenes, along with fatty acid Omega 3, B complex vitamins, and 20 essential amino acids. The oil is derived from non-GMO, U.S.-grown hemp. It also contains trace amounts of fractionated coconut oil for subtle flavoring. All product information and third-party testing results are found on the official CBDistillery product page.
The statements made regarding these products have not been evaluated by the Food and Drug Administration. The efficacy of these products has not been confirmed by FDA-approved research. These products are not intended to diagnose, treat, cure or prevent any disease. All information presented here is not meant as a substitute for or alternative to information from health care practitioners. Please consult your health care professional about potential interactions or other possible complications before using any product.
CBD oil is prohibited for sale by terms of service on the major online marketplaces, including Amazon, eBay, and Groupon. Most of the products sold as CBD oil on those websites are hemp seed oil and don't contain any CBD. We've also heard many reports of counterfeit and potentially dangerous products being sold as CBD oil on those websites. Your best bet is to always buy directly from the CBD company's official website.
Cannabidiol, or CBD for short, is a phyto-cannabinoid found in cannabis plants. However, it does not cause the same psychoactive effects as other naturally occurring cannabinoids (such as tetrahydrocannabinol, or THC). CBD induces feelings of sleepiness and tranquility, making it suitable for insomnia and other sleep disorders; CBD can be used to alleviate symptoms of epilepsy, diabetes, and anxiety disorders, as well. Legality is an issue for some; all 50 states have laws governing the sale, possession, and use of CBD, and they vary significantly (see the table below for a full analysis).