The Cannabis Sativa plant contains CBD, which is a naturally occurring chemical. CBD Oil, one of the products of CBD, has been demonstrated to have a number of advantages, including anxiety and seizure reduction, as well as nausea and pain alleviation. Best of all, because CBD only contains 0.3 percent THC or less, it has no psychotropic effects or causes users to feel "stoned." However, there are certain CBD oil negative effects.