I have read that taking CBD oil may help in the reduction of the size of tumors (specifically brain tumors). I’ve been taking Hemp oil instead, as that’s what came up when I did a search for CBD oil on a popular website. (My first bottle was not flavored and tasted absolutely horrible. Next one was mint-flavored and tastes far better.) Wanted to know if Hemp oild would give me similar results as CBD.
Inhibited liver function: The liver regulates the way different drugs are metabolized within the body; this process is known as hepatic drug metabolism. Higher-than-average doses of CBD oil can slow the hepatic drug metabolism process. As a result, users may not be able to process other drugs as quickly. This is particularly concerning for CBD oil users who also take prescription medications.
Perhaps it’s because many people have romantic and misplaced notions about nature. Some even point out that we come hard-wired with cannabinoid receptors in our brains and they must have a purpose, so why not use them? This is not exactly a persuasive argument: Nature endowed us with our own cannabinoids, so unless you have a deficiency of them or sluggish receptors, you really don’t need supplementation. 

CBD oils may contain some THC. Cannabis may impair your ability to drive safely or operate equipment and may have short- and long-term effects on your memory, attention, mood, heart rate, and mental health. It is also easy to overconsume CBD oil, so it's important to start with a low dose, as it may take several hours or longer to begin to feel the effects after consumption.
To calculate the cost per milligram of CBD, simply divide the dollar amount of the product by the total milligrams of CBD in the bottle. So for instance, a product with 600 mg CBD in a 1 fluid-ounce bottle costing $80 is equal to about 13 cents per mg of CBD; a product with 100 mg of CBD in the same size bottle selling for $40 works out to 40 cents per mg of CBD. In this case, it pays to splurge on the $80 bottle.

We use a combination of both Subcritical and Supercritical extractions. This allows us to perform a “fractional extraction” by first extracting at lower pressures to remove the lighter, temperature-sensitive volatile oils, and then subsequently extracting the same material at a higher pressure to remove the remaining oils. This approach is the best because it allows us to extract a complete range of cannabinoids, terpenes, essential oils, and other beneficial phytochemicals that yield a more potent blend.

Researchers like Blessing are legitimately excited about CBD. It shows real promise in treating previously intractable disorders like schizophrenia, and without the destructive side effects of existing drugs. Still, that doesn’t mean CBD is harmless. Research on drug interactions with CBD is in its infancy, but what is known within the medical community is that CBD can cause serious problems for people taking certain classes of drugs, namely SSRIs (a group of antidepressants including Zoloft and Prozac) and opioids.
With the increasing hype surrounding CBD, some — including this author — have speculated that it will become the next health fad, like taking fish oil or opting for a gluten-free diet, whether or not the research to support far-reaching health benefit claims pans out (see this recent New York Times op-ed by Cornell Medical College psychiatrist Richard Friedman urging caution). “Big Beverage” companies like Coca-Cola have even been exploring whether they should jump in the ring lest they miss out, bringing CBD infused drinks to the mass market sometime in the not-too-distant future (see my blogpost "Coca, Cola, and Cannabis: Psychoactive Drugs as Beverages").
Some studies have investigated the role of CBD in preventing cancer cell growth, but research is still in its early stages. The National Cancer Institute (NCI) says that CBD may help alleviate cancer symptoms and cancer treatment side effects. However, the NCI doesn’t fully endorse any form of cannabis as a cancer treatment. The action of CBD that’s promising for cancer treatment is its ability to moderate inflammation and change how cell reproduce. CBD has the effect of reducing the ability of some types of tumor cells to reproduce.
[193] N. M. Kogan, E. Melamed, E. Wasserman, B. Raphael, A. Breuer, K. S. Stok, R. Sondergaard, A. V. Escudero, S. Baraghithy, M. Attar-Namdar, S. Friedlander-Barenboim, N. Mathavan, H. Isaksson, R. Mechoulam, R. Müller, A. Bajayo, Y. Gabet, and I. Bab, “Cannabidiol, A Major Nonpsychotropic Cannabis Constituent, Enhances Fracture Healing and Stimulates Lysyl Hydroxylase Activity in Osteoblasts,” Journal of Mineral and Bone Research 30, no. 10 (October 2015): 1905–1913.

While researchers are calling for more robust studies on the role of CBD on mood disorders, there is promising research that points to CBD’s role as an anxiolytic – which means it has anti-anxiety effects. Another study showed CBD to have antidepressant effects comparable to those of the prescription antidepressant Imipramine. We noted above that CBD increases levels of glutamate and serotonin – and it’s these same neurotransmitters that play a crucial role in mood regulation.
Could cannabidiol help prevent tumors and other cancers before they grow? A 2012 study showed that animals treated with CBD were significantly less likely to develop colon cancer after being induced with carcinogens in a laboratory.[187] Several studies had already shown that THC prevents tumors and reduces them, including one in 1996 on animal models that found that it decreased the incidence of both benign and hepatic adenoma tumors.[188] In 2015, scientists analyzed the medical records of over eighty-four thousand male patients in California and found that those who used cannabis, but not tobacco, had a rate of bladder cancer that was 45 percent below the norm.[189] Topical products can be used to treat and prevent skin cancers. Continuing research is focused on the best ratio of CBD to THC and the most effective dose level in cancer prevention and treatment.