What Is Cbd Oil Uses Types And Side Effects? Key Facts

Cannabidiol, commonly called CBD, is one of over 100 chemical compounds found in the cannabis plant. Unlike THC, the compound that causes a high, CBD is not psychoactive. It is extracted from hemp plants and made into oils, gummies, capsules, and creams. People use CBD for pain, anxiety, sleep problems, and other health concerns, but the evidence supporting these uses varies widely.

What Is CBD Oil Exactly?

CBD oil is a concentrated liquid made by extracting cannabidiol from the hemp plant and mixing it with a carrier oil. Common carrier oils include coconut oil, hemp seed oil, and olive oil. The final product is placed under the tongue with a dropper, which allows the CBD to absorb into the bloodstream through the mucous membranes.

The hemp plant used for CBD oil is legally required to contain less than 0.3% THC in the United States. At this level, CBD oil will not produce a high or cause intoxication. Full-spectrum products contain trace amounts of THC plus other cannabis compounds. Broad-spectrum products contain those other compounds but no THC. Isolates contain only pure CBD with nothing else.

Your body has an endocannabinoid system, a network of receptors that helps regulate pain, mood, sleep, and appetite. CBD interacts with this system, though researchers are still working out the exact mechanisms. What is clear is that CBD does not bind directly to the main cannabinoid receptors the way THC does.

What Are the Main Types of CBD Oil?

Three main types of CBD oil are sold commercially. The differences matter because they affect what you are actually putting in your body.

• Full-spectrum CBD oil contains all the compounds found naturally in the hemp plant, including terpenes, flavonoids, and up to 0.3% THC.
• Broad-spectrum CBD oil contains the same plant compounds but has the THC completely removed.
• CBD isolate is pure CBD with all other cannabis compounds stripped away.

Some research suggests that full-spectrum products may work better than isolates because of what is called the entourage effect. The theory is that the various cannabis compounds work together to produce a stronger effect than CBD alone. This idea has some support in animal studies, but human research is limited.

For people who are drug tested or who want to avoid THC entirely, broad-spectrum oil or isolate is the safer choice. Even trace amounts of THC can show up on sensitive drug tests. If you are concerned about this, look for products with a certificate of analysis showing undetectable THC levels.

What Are the Documented Uses of CBD Oil?

Only one CBD product has been approved by the FDA. Epidiolex is a prescription medication used to treat two rare and severe forms of epilepsy: Lennox-Gastaut syndrome and Dravet syndrome. Clinical trials showed it significantly reduces seizure frequency in people with these conditions. This is the strongest evidence base for any CBD use.

For everything else, the evidence is less certain. Some studies suggest CBD may help with anxiety, but results are mixed. A 2019 study published in The Permanente Journal found that most adults taking CBD reported reduced anxiety scores after one month. However, the study had no control group, which limits what we can conclude from it.

Chronic pain is another common reason people try CBD. Some research indicates it may help with certain types of pain, particularly neuropathic pain. But large, well-designed trials are still lacking. The evidence for CBD as a pain treatment is promising but not conclusive.

Sleep is a related area of interest. People often report that CBD helps them sleep, but this may be because it reduces anxiety or pain that was interfering with sleep. Whether CBD directly improves sleep quality remains unclear. Some research actually suggests that low doses of CBD can be stimulating, while higher doses may be sedating.

What Are the Side Effects and Risks?

CBD is generally well tolerated, but it is not without side effects. The most commonly reported ones include dry mouth, diarrhea, reduced appetite, drowsiness, and fatigue. These effects are usually mild and often go away as your body adjusts.

There is a more serious concern with CBD and the liver. Studies using Epidiolex found that high doses of CBD can cause elevated liver enzymes, which indicates liver stress. This is why the FDA requires liver monitoring for people taking Epidiolex. If you take high doses of over-the-counter CBD, you should be aware of this risk.

CBD can also interact with other medications. It affects the same liver enzymes that break down many common drugs, including blood thinners, antidepressants, and some seizure medications. This can cause those drugs to stay in your system longer than intended, potentially leading to dangerous levels. If you take prescription medication, talk to your doctor before starting CBD.

One important warning applies to pregnant and breastfeeding women. No clinical guidelines recommend CBD use during pregnancy or while nursing. The FDA explicitly advises against it because of potential risks to the developing baby. There is simply not enough research to establish safety.

How Do You Choose a Quality CBD Product?

The CBD market is largely unregulated. The FDA has not established standards for over-the-counter CBD products, which means quality varies dramatically between brands. Some products contain less CBD than their labels claim, and some contain more THC than is legal.

Third-party testing is the only way to verify what is actually in a product. Reputable brands send their products to independent laboratories that test for CBD content, THC levels, and contaminants like pesticides, heavy metals, and mold. Look for a certificate of analysis that is current and specific to the batch you are buying.

Check the certificate of analysis for three things. First, does the CBD content match the label? Second, is the THC level below 0.3%? Third, are there any contaminants detected? If a company cannot provide this document, that is a red flag.

Start with a low dose and increase slowly. No official dosing guidelines exist for over-the-counter CBD. What works for one person may not work for another because of differences in body weight, metabolism, and the condition being treated. Many clinicians recommend starting with 10 to 20 milligrams per day and adjusting from there based on how you respond.

Is CBD Oil Legal?

Under federal law, hemp-derived CBD with less than 0.3% THC is legal in the United States. The 2018 Farm Bill removed hemp from the list of controlled substances. However, individual states have their own laws regarding CBD, and these vary considerably.

Some states have additional restrictions on CBD products, particularly those with any detectable THC. Others have specific requirements for labeling and testing. If you are traveling with CBD, check the laws of both your home state and your destination. The FDA has also not approved CBD as a dietary supplement, so it cannot legally be added to food or drinks sold across state lines.

Marijuana-derived CBD is a different matter. It is only legal in states that have legalized medical or recreational marijuana. This type of CBD may contain higher levels of THC and can produce a high.

What Does the Research Actually Show?

It helps to separate what is proven from what is promising. For epilepsy, the evidence is strong and the medication is FDA-approved. For anxiety, pain, and sleep, the evidence is suggestive but incomplete. No large clinical trials have confirmed that CBD reliably treats these conditions.

Part of the problem is research obstacles. CBD was classified as a Schedule I drug for decades, which made it extremely difficult to study in humans. That classification changed with the 2018 Farm Bill, but research has been slow to catch up. Many existing studies are small, short-term, or lack proper control groups.

There is also the question of dosing. Clinical trials for Epidiolex used carefully measured doses that are far higher than what most people take from over-the-counter products. It is unclear whether the doses people typically use for anxiety or pain are high enough to have a meaningful effect.