Can Marijuana Cause Diarrhea?

Introduction

In recent years, medical marijuana has gained popularity as a treatment for various conditions, ranging from chronic pain to anxiety. However, as with any medication, it can have side effects. One of the lesser-discussed but concerning potential side effects is diarrhea. Understanding whether marijuana can cause diarrhea requires a deep dive into both clinical evidence and anecdotal reports from patients.

Marijuana and Its Components

Marijuana, derived from the Cannabis sativa plant, contains over 100 cannabinoids, with tetrahydrocannabinol (THC) and cannabidiol (CBD) being the most well-known. THC is responsible for the psychoactive effects of marijuana, while CBD is known for its potential therapeutic benefits without the "high." These cannabinoids interact with the body's endocannabinoid system, which plays a role in regulating various physiological processes, including digestion.

Clinical Evidence on Marijuana and Diarrhea

The relationship between marijuana and gastrointestinal (GI) health is complex. Clinical studies have produced mixed results regarding marijuana's impact on digestive health, including the occurrence of diarrhea.

  1. No Direct Link: A 2019 study published in the American Journal of Gastroenterology investigated the effects of recreational marijuana use on bowel function. The study found no direct connection between marijuana use and diarrhea. Instead, it noted that cannabis users were 30% less likely to experience constipation compared to non-users. This finding suggests that while marijuana may influence bowel movements, it does not necessarily cause diarrhea.

  2. Potential Benefits for IBS and IBD: A 2017 review highlighted the potential of cannabis as a treatment for inflammatory bowel diseases (IBD) such as Crohn's disease and irritable bowel syndrome (IBS). The anti-inflammatory properties of cannabinoids might help reduce symptoms of these conditions, which can include diarrhea. Moreover, a 2022 literature review by the Minnesota Department of Health found evidence that cannabis could reduce colonic motility in people with IBS, potentially alleviating symptoms like diarrhea.

  3. Conflicting Anecdotal Reports: While clinical evidence does not firmly establish a link between marijuana and diarrhea, anecdotal reports from patients tell a different story. Some medical marijuana users have reported experiencing diarrhea, suggesting that individual responses to cannabis can vary significantly.

Possible Mechanisms Behind Diarrhea

Understanding why marijuana might cause diarrhea in some individuals involves exploring several potential mechanisms:

  1. Dietary Changes: One of the most straightforward explanations for diarrhea among cannabis users is dietary changes. Marijuana use is often associated with an increase in appetite, commonly referred to as "the munchies." This increased appetite can lead to the consumption of larger quantities of food, including new or unusual foods that might upset the digestive system.

  2. Ingredients in Edibles: For those who consume marijuana in edible forms such as gummies, baked goods, or beverages, the ingredients in these products might be the culprits. Edibles often contain additives, preservatives, and sweeteners that can cause gastrointestinal distress. For instance, the sugar substitute erythritol, commonly used in gummies, is known to cause diarrhea in some people.

  3. Allergic Reactions: Some individuals might have allergies or sensitivities to certain components in cannabis products. These allergic reactions can manifest as gastrointestinal symptoms, including diarrhea. Even small amounts of allergens can trigger a response in sensitive individuals.

  4. Endocannabinoid System Modulation: Cannabinoids interact with the endocannabinoid system, which is involved in regulating gut motility and secretion. In some individuals, this interaction might lead to changes in bowel habits, including diarrhea. However, this area of research is still emerging, and more studies are needed to fully understand the mechanisms at play.

What Should You Do If You Have Diarrhea as a Medical Cannabis Patient?

If you are experiencing diarrhea while using medical marijuana, there are several steps you can take to manage this side effect:

  1. Assess Your Diet: Consider any recent changes to your diet that might be contributing to your symptoms. Have you introduced new foods or drinks? Are you consuming larger quantities of certain foods? Identifying and eliminating potential dietary triggers can help alleviate diarrhea.

  2. Check the Ingredients in Edibles: If you use edible cannabis products, carefully review the ingredients list. Look for common allergens or irritants, such as certain sweeteners or preservatives. Switching to a different brand or formulation might resolve your symptoms.

  3. Consult Your Healthcare Provider: If dietary changes and ingredient checks do not resolve the issue, consult your healthcare provider. They can help you determine whether your symptoms are related to your cannabis use or another underlying condition. Providing detailed information about your cannabis use, including dosage, administration method, and timing, can help your provider make an informed assessment.

  4. Consider Taking a Break: A practical way to determine if marijuana is the cause of your diarrhea is to take a break from using it. You can stop using cannabis "cold turkey" without worrying about severe withdrawal symptoms. However, if you have found significant relief from cannabis, consider tapering your dose gradually. Document your symptoms during this break to see if they improve.

  5. Explore Alternative Treatments: If you find that cannabis is indeed causing diarrhea, discuss alternative treatments with your healthcare provider. There might be other medications or natural remedies that can provide similar benefits without the side effects.

Conclusion: The Verdict on Marijuana and Diarrhea

Can marijuana cause diarrhea? The answer is complex. Clinical evidence does not firmly establish a direct link between marijuana use and diarrhea. However, individual responses to cannabis can vary, and some users do report experiencing this side effect. Factors such as dietary changes, ingredients in edible products, and individual sensitivities can all play a role in gastrointestinal symptoms.

If you experience diarrhea while using medical marijuana, taking a systematic approach to identify the root cause is crucial. Assessing your diet, checking product ingredients, consulting with your healthcare provider, and possibly taking a break from cannabis can help you determine whether marijuana is the culprit. Ultimately, the relationship between marijuana and digestive health is complex, and ongoing research will continue to shed light on this important topic.

Medical marijuana offers significant benefits for many patients, but like any treatment, it requires careful management and personalized adjustments to optimize its therapeutic potential while minimizing side effects.

 

FAQs

  • Edible cannabis products may be more likely to cause diarrhea due to the ingredients they contain. Additives, preservatives, and sweeteners, such as erythritol, can irritate the gastrointestinal system in some individuals. If you experience diarrhea after using edibles, consider switching to a different form of cannabis, such as tinctures or oils, which may have fewer irritants.

  • Research suggests that marijuana may have potential benefits for gastrointestinal conditions such as irritable bowel syndrome (IBS) and Crohn's disease. The anti-inflammatory properties of cannabinoids might help reduce symptoms, including abdominal pain and diarrhea. However, individual responses vary, and it is important to consult a healthcare provider to determine if marijuana is a suitable treatment for your specific condition.

  • Yes, it is generally safe to stop using marijuana abruptly if you believe it is causing diarrhea. Unlike some medications, marijuana does not cause severe withdrawal symptoms. However, if you have been using marijuana to manage a specific condition, consider tapering your dose gradually and consult your healthcare provider for guidance. Documenting your symptoms during the break can help you and your provider assess your body's response and determine the best course of action.

Headshot of Steven Fiore, MD

This article has been reviewed by Steven Fiore, MD.

Previous
Previous

How to Use CBD for Better Sleep: Tips and Tricks

Next
Next

How to Smoke Cannabis for the First Time