But because all these products are illegal according to the federal government, cannabis advocates are cautious. “By and large, the federal government is looking the other way,” says Paul Armentano, deputy director of the Washington, DC–based National Organization for the Reform of Marijuana Laws (NORML), but until federal laws are changed, “this administration or a future one could crack down on people who produce, manufacture, or use CBD, and the law would be on its side.”
The immediate and powerful effects of THC are explained because of the special affinity it has with the CB1 type receptors, which mediate crucial processes in the brain. The less prominent (but no less important) action of CBD was explained, at least for a while, by hypothesizing that it binds to CB2 type receptors, hence its more diffuse manner of exercising changes in the body. Early on, the antipsychotic effects of cannabidiol were observed, an aspect which seemed to be in consonance with this initial hypothesis.
But it also requires careful research before making a purchase. Because the cannabis plant readily absorbs pesticides, heavy metals and other chemicals that are in the soil and water, it’s so important that cannabis plants are frequently tested while they are growing. And it’s up to manufactures to test CBD products, too. When you are shopping for CBD oil, look for products that have been tested for contaminants and for CBD vs. THC levels.
Then there is the matter of which part of the plant is used. THC tends to be more concentrated in the leaves of the plant, while CBD in its stem and seeds. It should be noted that these aspects are relative. Some degree of agreement exists that for the purest CBD, the stalk of a hemp plant (varieties of cannabis generally grown for fiber manufacturing, low in THC), or much less often the seeds. Taking into account the fact that CBD supplements are usually in an oil form, one may fathom the origins of the nearly ubiquitous hemp oil dietary supplements.