Can You Overdose on CBD?

CBD Dosage

Written by Kandi Neal:

If you’re new to CBD, you might be wondering, “What is my CBD Dosage?” This is a commonly asked question and rest assured you are not alone. To date, there are no known reports of a fatal overdose caused by any CBD products. According to the National Cancer Institute, “Cannabinoid receptors aren’t found in the brain stem, so there is no way it can change our key functions.” CBD is non-toxic and you won’t overdose, it is still possible to get some unwanted side effects from overdoing it. Even though CBD oil is considered safe and is generally tolerated well, it’s important to figure out how much CBD is exactly right for your individual needs. Read on for tips and tricks for finding your specific serving size.

While the benefits of the hemp plant are constantly being analyzed, many studies that have been conducted suggest that CBD is biphasic, meaning high and low doses can produce opposite effects and can change drastically based on whether you are taking more or less of it. In short, what this really means is that CBD in small doses have been shown to be uplifting and even energizing. Larger amounts tend to produce a more sedating effect and can make you sleepy. Starting with some simple awareness of the possible biphasic effects can help you begin to recognize how your body is reacting. Finding your optimal CBD dosage typically involves some experimentation to find out just how it’s affecting you specifically.

The number one thing to keep in mind is that it’s important to find out what works best for you instead of relying on what may work for somebody else. For this reason, it’s best to start with a lower dose and slowly increase until you get the desired benefits of CBD. If at some point you start to experience unwanted effects, simply lower your dose. On the flip side, if it was working well for you at first, but now seems less effective, consider slowly increasing the amount that you’re taking until you find that balance that is exactly right.

It might be challenging to know what would be considered a small or large dose, especially if you’re new to hemp derived CBD products. Commonly, a small dose is anything less than 20 mg per day of CBD. A large CBD dosage would be considered something over 50 milligrams. However, the definition of large or small can vary depending on various factors that include your metabolism and body weight. Even though it might be tempting to think “the more, the better,” that’s not always the case. In fact, many times it’s the polar opposite. Most consumers of cannabidiol CBD find that “less is more” is more applicable when it comes to dosage.

By starting “low and slow,” you have the best opportunity to explore your optimal dosage in a shorter window of time. In addition, you will also save money as you fine-tune the right amount for your body. As you navigate this process, keep in mind that sublingual drops are the most suggested delivery method for this trial period because they will allow you to customize your dose as needed based on the amount of drops or milliliters that you are taking. Lastly, remember that the serving suggestions on CBD product labels are just that – suggestions. It’s quite common for the suggested amounts to be too high for the beginner. It’s always best to err on the side of caution and work up gradually.

While we’ve established that you can’t overdose on CBD, it is still possible to take too much. The three most common signs that you might be overdoing it include fatigue, mild nausea, and headaches. These potential side effects typically can be reduced or eliminated completely by simply lowering the amount of CBD that you are consuming. For example, if you have been taking a full dropperful (one milliliter), consider reducing that to a half of a dropper or less. If the lower CBD dosage eliminates the undesirable side effects, you can begin to take your time increasing it until you obtain your desired results. Dosing CBD oil depends on a variety of factors, including the concentration of CBD, the patient’s medical condition, as well as weight, age, and metabolism. Always do your research on the CBD brands and purchase from a reputable company, like Cannafyl. Lastly, some also found that taking small breaks, changing the time they take it, or taking CBD just for specific symptom relief can alter the way their body responds to it.

This leads to the commonly discussed topic of tolerance buildup. While there’s not a crystal clear answer for that, according to several studies, it seems as if people don’t typically develop a tolerance to CBD products. Some individuals have been taking CBD for years without increasing their dose. Oddly enough, CBD can even lead to a strange phenomenon known as “reverse tolerance,” where the consumer needs a lesser dose than before to feel the effects with consistent use. Over time, some CBD users experience even better symptom relief for chronic pains with continuously lower doses. CBD interacts with the endocannabinoid system to naturally increase the body’s ability to produce its own endocannabinoids over time. The more endocannabinoids circulate in your system, the less CBD you’ll need to get relief.

Although this is for informational purposes only, keep in mind that while it’s rather impossible to overdose on CBD oil, there are effects of CBD that may occur if you take too much at once. Luckily, these side effects are mild to nearly nonexistent. We always recommend seeking medical advice to avoid any rare drug interactions.


National Cancer Institute: Cannabis and Cannabinoids – Health Professional Version

Columbia University Dept. of Neurology:  Chronic Pain Syndrome

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