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What Are The Side Effects of CBD?

What Are The Side Effects of CBD?

As CBD becomes more extensively researched and widely available, we are starting to realize the true therapeutic power of the cannabinoid. A quick Google search for ‘CBD,’ and millions of results will pop up, many reporting that the naturally-derived cannabis compound can do just about anything from relieving anxiety and pain to quelling insomnia and depression.

That said, there are a few risks and side effects associated with using CBD. The truth is, everything from the food we eat to the water we drink has side effects because the body reacts in different ways to different substances. Subsequently, the way CBD interacts with your body in particular may be different compared to how it interacts with someone else. Below, we look at several potential side effects that may be experienced when using even the market’s highest quality CBD products.

Potential Side Effects of CBD Products

The majority of potential adverse reactions caused by CBD are mild. Therefore, although they may cause you to feel uncomfortable, they’re usually short-term and happen right as the CBD starts to take effect. They typically last anywhere from a few minutes to a few hours, and should start to subside as the CBD wears off.

Here are a few of the most common side effects of CBD.


While CBD is often touted for its ability to help with insomnia, this could be an unwanted side effect for some people. CBD is known to induce drowsiness, which means it could negatively affect your sleep cycle.

Dry Mouth

Also known as cottonmouth, CBD could cause your mouth and even your eyes to become parched. This appears to happen due to the way CBD reacts with CB receptors in the mouth, known as submandibular glands. It tends to reduce saliva production, so be sure to consume lots of water before (and after) using CBD to minimize this side effect.

Reduces appetite

Many CBD advocates claim that it can help with weight loss by reducing appetite. Although a beneficial effect for some, this could be a problem for others since it may leave them undernourished for extended periods of time – especially if CBD is used regularly. This could result in nutritional deficiencies, irritability, weakness, and unwanted weight loss.

Nausea and Diarrhea

Although relatively rare, some users report feeling sick to their stomachs after using CBD oil. Aside from nausea, others may very rarely experience diarrhea. Mild gastrointestinal issues are common, and in rare instances may cause dizziness and other digestive problems. This, in part, is because some people simply don’t digest CBD well.

Of course, it may not be the CBD that’s causing these problems. Instead, other ingredients in the CBD supplement may be what is causing gastrointestinal distress.

Side Effects from low-quality or contaminated CBD products

Due to a lack of regulation in the industry, choosing the right CBD product is important. CBD can become contaminated during the cultivation and manufacturing process, resulting in low-quality and potentially unsafe CBD products. Unreliable products could contain the following contaminants:

  • Pesticides and heavy metals
  • Synthetic cannabinoids
  • High levels of THC
  • Solvents (i.e. hexane and butane)

Unfortunately, contaminated CBD products aren’t all that uncommon. Contaminants can lead to side effects such as headaches, skin rashes, confusion, allergic reactions, and nausea and/or vomiting. This is why it’s so important to order products from trustworthy, reputable, U.S. brands.

Here at PureKana, we have all of our products tested by a third-party laboratory to ensure that they are safe to consume and don’t contain any of these contaminants. The Certificates of Analysis (CoA) are available for everyone to view under each product description, so be sure to check the lab reports out for yourself.

Final Thoughts on Potential CBD Side Effects

All in all, CBD is safe and well-tolerated by the human body. However, since everyone is unique, CBD tolerance levels may differ from person to person. If you experience any side effects like drowsiness, diarrhea, or dry mouth, perhaps it’s a sign that CBD isn’t for you. Or, maybe you just consumed too much of the cannabinoid and need to reduce your dosage.

Like any other compound, CBD is not entirely insular. As it interacts with your body, your body will react and may produce unexpected results. Therefore, it is always important to consult with a specialist before taking any form of CBD, especially if you are a first-time user.


I truly appreciate this post. I've been looking everywhere for this! Thank goodness I found it on your blog. You have made my day! Thx again

11 Sep 2022 Reply
Not all CBDs are created equal

For the person who indicated she had taken CBD and had all these kind of side effects my opinion on this is not all CBDs are created equal. You have to make sure you buy quality CBD I only buy and consume CBD that is hemp derived organically grown in the US which also has 3rd party testing. I've been using CBD tinctures now for maybe half a year and I've had excellent results.

16 Aug 2019 Reply

It would be nice to know some of the answers to these questions. No one knows each other. So it's not a problem of privacy. But all these questions just bring up lingering doubts with no answers.

04 Aug 2019 Reply

I took CBD oil yesterday for the 1st time and I got all the side affects nausea diahrea lack of sleep loss in appetite I took 3drops in the morning and 3 at night I'm just wondering do I stop taking it or carry on and the side effects will subside I also felt very depressed ???

25 Apr 2019 Reply

I take CBD during my lunch break

20 Apr 2019 Reply

I have MS, take injections 3x a week,,i also have degenerative disc disease.. is it ok to try oil Thx

18 Apr 2019 Reply

does cbd oil help with high cholestrol?

06 Jan 2019 Reply

/HI my daughter has allergies she is 15 years old. Can CBD reduce allergies?

29 Dec 2018 Reply
Reply To nathalie naor Allergies /CBD

No but local pure honey can. ? Good luck.

29 Jul 2019
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