CBD Oil Dosage [What’s Best for You]

CBD Oil Dosage [What’s Best for You]

Although CBD oil is ‘legal’ in most states (we won’t go into the legal minutiae in this article), there is no single guide which tells people the correct dosage. There are a few reasons for this:

  • CBD is not FDA approved.
  • Only a relatively small percentage of physicians are willing to prescribe CBD to patients.
  • The strength of CBD oil varies depending on the brand.
  • Everyone is different: The amount of CBD oil you need depends on your height, weight, metabolism, and a variety of other factors.
  • The dosage varies depending on the condition you’re looking to treat.

Simply put, there is no concrete solution to the question: ‘How much CBD oil should I take daily.’ What I aim to do in this article, is to give you a ballpark figure based on your needs.

Aside from Medical Conditions, What Factors Dictate My CBD Oil Dosage?

Unfortunately, CBD is not as well researched as it should be which means researchers are still trying to determine the precise nature of CBD’s relationship with the endocannabinoid system (ECS). What we know is that cannabidiol DOES affect the ECS but since everyone has a different ECS, the effect of CBD on you will not be the same as it will be on someone else. This is why you’ll have to experiment with the effects of CBD, a process we explain below.

Without a doubt, the potency of the CBD oil you consume plays a major role in how much you need. Carefully check the label and try to use full-spectrum CBD oil. Pure Kana CBD oil for example, comes in three potencies: 300mg, 600mg, and 1,000mg. Since all three come in the same-sized bottle (30ml), it is clear that 1,000mg is the strongest. In this case, 1ml of the oil contains 33.33mg of CBD. Other factors include:

  • Metabolism
  • Weight
  • Diet
  • CBD tolerance
  • The severity of your condition

If these factors change, so will the amount of CBD you require. For example, if you have anxiety or depression which causes you to lose weight, you may need a lower dose of CBD. It is much more difficult to change your metabolism as it requires a significant alteration to your diet and lifestyle.

CBD Oil Dosage According to Condition Being Treated

There are various ways to calculate your CBD oil dose based on your medical condition. First of all, I can offer a generic dose for several conditions:

Chronic Pain

An estimated 100 million Americans suffer from chronic pain with the most common types including neck pain, facial pain, migraine, and lower back pain. The optimal dosage is anywhere between 2.5mg and 20mg of CBD daily for at least 25 consecutive days. As you can plainly see, there is a wide disparity between the lowest and highest possible dosage. At this stage, you have to try to classify your pain as mild, medium or severe.

Next, weigh yourself. If you weigh over 240 pounds and have severe pain, you may need up to 45mg of CBD a day. However, a 145-pound person with medium pain may require 15mg a day, while a 180-pound person with mild pain may require 18mg of CBD per day; and so on.


The case of Charlotte Figi may be the most celebrated case of CBD helping with epilepsy but it is far from being the only one. Even with a pharmaceutical version of CBD, Epidiolex, which is far less effective than the real thing, epilepsy sufferers found that their seizures had decreased by 54% after 12 weeks of using the drug. Patients with Dravet Syndrome had a 63% decrease in seizures after 12 weeks.

If you have epilepsy, you may need at least 200mg of CBD a day and possibly 300mg for over four months to see a lasting effect.

Sleep Disorders

Back in 1942, Americans enjoyed 7.9 hours of sleep a night on average. Fast forward to 2013, and this figure had reduced to 6.9 hours. This is below the lowest part of the 7-9 hours a night range recommended by medical experts. Less than 60% of Americans fall within the range as sleep disorders are rife. To help treat conditions such as insomnia, people take between 40mg and 160mg a day.

Increasing Appetite During Chemotherapy

While chemotherapy is a life-saving treatment for many, one of the most common side-effects is a loss of appetite as the treatment damages your cells and DNA. There are a variety of studies that show CBD’s ability to improve a chemotherapy patient’s appetite. It is a better option than high-inducing marijuana in states where the herb is still illegal. For best results, between 2.5mg and 20mg of CBD per day in known to be effective.

Treating Nervous System Disorders Such as Huntingdon’s Disease

Conditions such as Huntingdon’s results in nerve cell degeneration in the brain. Effects include uncontrollable movements and poor coordination. As CBD acts on CB1 and CB2 receptors, albeit indirectly, it potentially slows down neurodegeneration. Patients with Huntingdon’s typically consume 10mg of CBD per pound of bodyweight. So, if you weigh 150-pounds, you’ll probably need 1,500mg of CBD daily.

Experiment with CBD the Right Way

In medicine, it is always best to use the minimum amount for the maximum benefit. Once you go beyond that point, you are using too much; a mistake which could increase your CBD tolerance and reduce its impact in the long-term. As a result, always start with a low dose, monitor the results and increase the dosage as necessary. Typically, you’re advised to begin with a single drop of CBD oil in the morning and another in the evening to ensure it doesn’t result in a negative reaction.

In my example of a 180-pound person with mild pain, we ascertained that he would need 18mg of CBD a day. If you purchase the 1,000mg bottle of Pure Kana, you know that the product contains 40 servings at 25mg of CBD apiece. To begin with, try one-quarter of a serving which contains 6.25mg of CBD and work your way up. Obviously, your starting point depends on your medical condition and other things. Once you’re satisfied with the results, stop increasing your dosage.

Methods of Consuming CBD Oil

The most common method of using CBD oil is sublingual. You place the oil beneath your tongue for a few seconds (some brands recommend up to 60 seconds) to allow it to be absorbed in the mouth, before you swallow. One possible issue with this method is the ‘bioavailability’ which is a term used to describe the rate of CBD absorption. A high bioavailability means a large percentage of the cannabinoid made it through your system.

Methods of CBD consumption such as CBD pills, edibles, and water are the least effective with the lowest bioavailability. It can take up to an hour for you to feel the effects although they can last for four hours. Research suggests that the bioavailability of CBD consumed orally varies from 4-20%. In other words, even at the top end, only one-fifth of the CBD you consume gets through; the rest is metabolized by various parts of the body including the liver and lungs. Although estimates vary, experts are confident that sublingual consumption offers significantly greater bioavailability than oral use. You’ll feel the effects in as little as 20 minutes and they should last for four or more hours.

You can also ‘vape’ specific CBD oils by adding it to a special device that enables you to use CBD like you would an e-cigarette. Research suggests that inhalation results in a bioavailability rate of 56%. Another benefit of vaping is the rapid effects. You should feel an improvement within minutes and it lasts for several hours at a time.

Please note, NOT all CBD oils are designed for vaping.

Final Thoughts on CBD Oil Dosage

In reality, trying to provide a precise CBD oil dosage is a bit like attempting to calculate the length of a piece of string. There are far too many factors in play to offer you anything other than a generic estimate based on your size, medical condition, genetics, and metabolism, among other things!

I recommend beginning with half of the lowest estimate for your condition and working your way up. Eventually, you’ll get to a point where the CBD does everything you could ask for and much more. If you go beyond this dosage, you’ll succumb to the laws of diminishing returns and probably reduce the efficacy of the CBD within a few months.

One last thing, please take into consideration that I am not a doctor and this article is only based on personal experience. If you need more accurate information, please schedule a meeting with your primary physician.

CBD oils that work

Customer Reviews Based on 14 reviews

  • Scott Morris
    Different it is

    The dosage is definitely different for different people, depends upon a lot factors. I am a great CBD fan, and I dose it differently for different things, at different points in time. One thing that has been common so far is that, CBD has never cured completely, and it has always given me some relief.

  • Jeffrey Ide
    Microdosing is the best option

    CBD is very unpredictable. Three members in my family take it on a regular basis, and all have different doses. So it is better to microdose it I would say.

  • Tmmy Phillipa Reece
    Thank you

    I am a very underweight 24 year old, having struggled for 6 years with anorexia. I have often been advised by people close to me to try CBD to help raise appetite and reduce my anxiety. Finding the dosage for my size has never been possible, so thank you for this guidance.

  • Ben Jones
    When will CBD be approved?

    This is good – when will CBD be FDA approved?? They did it with epidiolex , surely it has to be time!!!

  • Betty Croft
    I have asthma

    Hi, thanks for the information. I have asthma, do you think CBD could help, and how much should I use for it if so? I really want to tackle my issue as I have now been an ex-smoker for 12 months and want to get better.

Leave a Reply

Your email address will not be published.