CBD Dosage: How Much Should You Take?
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Table of Contents
- Determining the Best CBD Dosage for You
- How to Calculate CBD Dosage
- How to Take CBD
Cannabidiol (CBD) is growing increasingly popular, thanks to its many purported health benefits and non-intoxicating properties (most CBD products contain less than 0.3% tetrahydrocannabinol, or THC). In fact, 60% of U.S. adults have tried CBD at some point and believe it has medicinal benefits, according to a recent Forbes Health survey of 2,000 U.S. adults conducted by OnePoll. As research evolves and sheds light on CBD’s efficacy, especially for pain relief, more and more people are adding it to their daily wellness regimens.
Consumers can choose from a variety of CBD products, from oils to gummies to vapes to capsules. But figuring out the safe and effective CBD dose for an individual is a complex decision.
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Here’s how to find the right CBD dosage for you and how to consume it safely.
Determining the Best CBD Dosage for You
With the exception of one CBD product, a prescription drug used to treat seizures associated with particular syndromes, the Food and Drug Administration (FDA) doesn’t regulate the use of CBD. (In fact, it’s illegal to market CBD as a supplement or add it to food.) Therefore, it’s best to consult a doctor with experience in CBD administration to determine your ideal dosage.
Expressed in milligrams (mg), CBD dosage largely depends on the conditions and symptoms you’re trying to treat and your unique endocannabinoid system, which is associated with motor control, behavior, emotions, the nervous system and homeostasis. CBD dosage remains an area of active research—more large, high-quality studies are needed in different populations to determine appropriate dosing, efficacy and safety guidelines.
“It’s best to start small and gradually increase your dose up to a level that gives you the desired effect,” says Cheryl Bugailiskis, M.D., a cannabis specialist at Heally, a telehealth platform for alternative medicine. Your starting point might look like half a CBD gummy or a drop of oil. Ideally, navigate this process under the guidance of a qualified physician.
If you’re still not sure where to start, mydosage.com offers a questionnaire and CBD calculator to help you based on your specific symptoms and usage goals.
How to Calculate CBD Dosage
When you consume CBD gummies, capsules or softgels, dosage is typically expressed per unit. For example, there may be 50 milligrams of CBD in each individual gummy. These products don’t offer much dosage flexibility since you can’t split up capsules easily. For instance, if one softgel capsule didn’t provide your desired result, you would have to take another full capsule, doubling the total dose.
CBD oil, on the other hand, makes it easier, to begin with a small dose. But calculating CBD oil dosage can be less straightforward. Oils and tinctures tend to come in a dropper bottle and, typically, only the total liquid volume and CBD contents are listed on the label. For example, the label might simply state there’s 1,500 milligrams of CBD in the 30-milliliter bottle.
But what does 1 milliliter look like? Due to the current lack of regulation of CBD, this calculation can be tricky. Start by figuring out the volume of a single drop in your dropper, which is usually 0.05 milliliters, according to Dr. Bugailiskis. If you’re unsure, ask the company.
Here’s where math comes in. Let’s continue with the 30-milliliter bottle with 1,500 milligrams of CBD and 0.05 milliliters in a single drop as our example.
1500mg÷30mL = 50 mg/mL
This bottle contains 50 milligrams of CBD per milliliter. Let’s see how many milligrams are in a drop:
50mg/mL ×0.05mL/drop = 2.5mg/drop
Each drop contains 2.5 milligrams of CBD.
Next, you can calculate how many drops you need to reach your goal dosage. Let’s say you want to consume 25 milligrams each day.
25mg÷2.5mg/drop = 10 drops
10 drops ×2.5mg = 0.5mL
With this CBD oil dosage calculator as your guide, you would find that you needed to consume 10 drops, or 0.5 milliliters, to reach 25 milligrams. And if you intend to consume 25 milligrams daily, you can expect this particular bottle to serve as a 60-day supply.
Some CBD products do some of this math for you and illustrate how many milligrams are in a milliliter, some even marking these points on the dropper so you know exactly what you’re taking.
CBD Dosage for Different Ailments
Without FDA approval, there is little guidance in the U.S. on how much CBD a person should consume for various conditions.
In many medical studies on CBD, you see administered doses reach hundreds of milligrams a day, which sounds severe compared to our starting dosage example of 25 milligrams. However, Steven Phan, founder of Come Back Daily, a CBD dispensary in New York, points out that patients in these studies are often dealing with serious flare-ups and pain-inducing conditions compared to everyday dispensary customers.
Below are clinically-studied CBD dosages based on different ailments and conditions. Note: Some of the formulations studied contained THC as well—not all available dosage research sticks strictly to CBD.
*Dosages are based solely on small, short-term clinical study results where CBD proved significantly successful over placebo. Much larger studies are needed to further strengthen the evidence.
FDA-approved Epidiolex administers CBD orally as a liquid to treat seizures associated with Lennox-Gastaut syndrome, Dravet syndrome and tuberous sclerosis complex. The dosage of Epidiolex is determined by taking the patient’s weight in kilograms (kg) into account.
Several countries, including Canada and those in the U.K., have approved the use of Sativex, an oral spray with equal amounts of CBD and THC, to treat pain stemming from multiple sclerosis. Canada has also approved it for treatment of cancer pain.
The medical and research community still has a long way to go before figuring out what dose works best for each condition. At an individual level, consumers can experiment with caution until they find what works best for them.
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How to Take CBD
Popular ways to take CBD include:
- Oils and tinctures (extracts of plant material dissolved in ethanol): A liquid that comes in a bottle with a dropper
- Gummies: A soft, chewable candy that’s often fruit-flavored
- Sprays: A liquid that comes in a bottle with a nozzle for spraying into the mouth
- Capsules: Tablets or softgels that are ingested by mouth
- Vapes: CBD oil that’s heated without ignition, resulting in an inhalable vapor
- Flower: Dried hemp plant that’s often ignited and smoked
- Edibles: Any food that CBD oil has been added to, such as brownies or chips
- Drinks: Any beverage that’s infused with CBD, often in the form of hemp extract
Your CBD product of choice will largely depend on your personal preferences, as well as your budget since prices vary depending on the potency of ingredients and manufacturing processes. Different mediums also offer varying levels of bioavailability—or how much of what you take is actually absorbed into your bloodstream to have an effect. For example, if you ingest 10 milligrams of CBD via 1 milliliter of liquid, your body might absorb about 60% of it, or about 6 milligrams.
Cannabinoids generally have a low bioavailability compared to other substances, according to Jordan Tishler, M.D., a physician specializing in cannabis treatment in Massachusetts. However, “products that contain emulsifiers like egg yolk (brownies) or lecithin (some gummies) do better,” he says.
With that said, ingesting CBD via gummies or other edibles may take longer to take effect since the CBD has to travel to your digestive system to be broken down and absorbed.
Can You Take Too Much CBD?
Like with any substance, you can take more CBD than your body can handle. Studies show doses up to 1,500 milligrams a day have been well-tolerated, but every person is different  Bergamaschi MM, Costa Queiroz RH, Zuardi AW, Crippa JAS. Safety and side effects of cannabidiol, a Cannabis sativa constituent. Current Drug Safety. 2011;6(4):237-49. . Ingesting too much CBD can cause unpleasant side effects, such as dry mouth, nausea, diarrhea, upset stomach, drowsiness, lightheadedness and general disorientation. While rare, liver damage can also occur.
What’s more, CBD can have serious interactions with certain medications. In evaluating available information on five prescription CBD-based medications, researchers found 139 medications could have a potential drug-drug interaction with CBD  Kocis PT, Vrana KE. Delta-9-Tetrahydrocannabinol and Cannabidiol Drug-Drug Interactions. Medical Cannabis and Cannabinoids. 2020;3:61–73. . People who take certain blood thinners, heart rhythm medications, thyroid medications and seizure medications need to be particularly careful.
At the end of the day, not all supplements are created equal, which is why it’s important to work alongside a health care provider when adding CBD to your wellness regimen and research reliable brands. And while emerging research and anecdotal evidence is promising, more large, randomized-controlled trials are needed to further understand the benefits of CBD and its dosing.
Using CBD for Arthritis: Tips for How to Get Started
Enthusiasts of cannabidiol (better known as CBD) rave about the substance’s health benefits. Some small studies have shown that CBD could be a remedy for anxiety and help children with post-traumatic stress disorder get to sleep. The substance was even FDA-approved last year as a prescription drug to manage rare, severe forms of epilepsy.
So naturally, you might be wondering: Can CBD help people with arthritis and related diseases cope with pain? Anecdotal reports from patients and some preliminary research suggests yes, but the science is still emerging and more research is needed.
Here’s what you need to know right now about how to use CBD to ease arthritis symptoms, how to find a high-quality CBD product, and how to work with your doctor to incorporate CBD into your arthritis treatment plan.
What Is CBD, and Can It Help with Arthritis?
CBD is a chemical found derived from hemp. Hemp and marijuana are both types of cannabis plants, but they are very different from each other. They each have different quantities of various phytocannabinoids, which are substances naturally found in the cannabis plant. (It’s sort of like how different kinds of berries contain different combinations of antioxidants.)
- Marijuana contains an abundance of THC (tetrahydrocannabinol), which is the cannabinoid that gets you high.
- Hemp contains less than 0.3 percent THC. It contains CBD, which is a cannabinoid that doesn’t have any psychoactive effects. CBD cannot make you feel high. Instead, CBD works in other ways with your endocannabinoid system, which is a group of receptors in the body that are affected by the dozens of other documented cannabinoids.
“Cannabinoids can inhibit or excite the release of neurotransmitters [brain chemicals] and play a role in modulating the body’s natural inflammatory response, which are the two things we’re concerned about when talking about CBD for arthritis,” says Hervé Damas,MD, a Miami-based physician and founder of Grassroots Herbals, a CBD product company.
CBD is thought to work on pain in two parts of the body: the site of soreness (such as your finger joints) and the central nervous system, which sends pain signals to the brain when it detects certain stimulation or damage to nerves and cells.
The ability for CBD to calm that response is one reason the compound might be a viable pain remedy for people with arthritis. Another is CBD’s anti-inflammatory properties. Inflammation occurs when your body is fighting a perceived infection. In autoimmune diseases such as rheumatoid arthritis, the immune system is attacking healthy parts of your body like your joints.
It’s important to note that while early research on animals has shown promise for CBD, more research is needed before we can draw anything conclusive for humans. However, anecdotal reports from people who have started incorporating CBD into their arthritis treatment are positive. One CreakyJoints member shared on Facebook that topical CBD “helps better than any other ointment I’ve ever used.” CBD could be worth exploring as a potential solution to pain as part of an overall arthritis treatment plan.
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How to Find the Right CBD Product for You
From supermarkets and pharmacies to health food stores and online retailers, CBD can be found just about everywhere. But how do you choose the right CBD product for your health needs?
1. Pick the CBD Formulation You Want to Use
CBD comes in a few different forms. Commonly used ones include:
- Edibles: You eat CBD infused into gummies, chocolates, sodas, baked goods, and other edible items
- Vaporizer: You inhale CBD through a vape pen that heats up the oil
- Sublingual drops: You take a few drops under your tongue of a high-concentrate solution of CBD
- Topicals: You apply creams, lotions, balms and other products with CBD directly to your skin
The different types of CBD take effect in your body at different rates. Here’s how long you can expect different types of CBD products to kick in, according to Dr. Damas:
- Edibles: 30 minutes to two hours
- Vaporizer: Two minutes
- Sublingual drops: 15-30 minutes
- Topicals: 10 minutes
2. Look for Signs of High-Quality CBD
Don’t just buy the least expensive one on the shelf. There are lots of poor-quality CBD products on the market (some of which don’t contain the amount of CBD they claim, per these FDA warning letters).
Dr. Damas recommends looking for CBD products that are made in the United States, use a carbon dioxide-based extraction method (“It’s the cleanest,” he says), come from organically grown hemp, and don’t contain a lot of extra ingredients. Consumer Reports also has a thorough guide to shopping for CBD that can help you find a high-quality product.
3. Pick the Right Dose
As for dosing of CBD oil, the jury’s still out on just how much you should take. Start with a low dose (such as 5 to 10 mg), and gradually work your way up over a few weeks until you notice the effects.
“Usually people find pain relief when they take 20 to 35 milligrams of CBD daily,” says Dr. Damas.
You can take the full dose at once or break it up throughout the day. Experiment with what makes you feel best. You should start seeing improvements shortly after you start supplementing with CBD, with more noticeable effects kicking in after two weeks.
How to Discuss CBD with Your Doctor
You should talk to the doctor who treats your arthritis before you start taking CBD or any other supplement. They can let you know if CBD might interact with any medications you currently take or potentially worsen a chronic condition. For example, “CBD may make it easier to bleed,” says Dr. Damas. “So if you’re going to have surgery, you might want to stop taking it before the procedure.”
Check out this list of potential drug interactions with CBD from the U.S. National Library of Medicine, but you should always check with your doctor about your individual case.
Keep in mind that your doctor’s knowledge of CBD might be limited. There isn’t a lot of research about the benefits of CBD or about ideal dosages or formulations, so your doctor might not be able to be overly specific in terms of their recommendations. However, they still need to know that you’re taking CBD. Chances are, they’ll be interested in hearing about your experience using CBD products and your self-reports on how CBD may be helping to manage your pain or other symptoms.
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CreakyJoints is a digital community for millions of arthritis patients and caregivers worldwide who seek education, support, advocacy, and patient-centered research. We present patients through our popular social media channels, our website CreakyJoints.org, and the 50-State Network, which includes nearly 1,500 trained volunteer patient, caregiver and healthcare activists.
CreakyJoints is a digital community for millions of arthritis patients and caregivers worldwide who seek education, support, advocacy, and patient-centered research. We represent patients through our popular social media channels, our website CreakyJoints.org, and the 50-State Network, which includes nearly 1,500 trained volunteer patient, caregiver and healthcare activists.
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