After all this talk about the potential benefits of CBD, you may be wondering if there are any drawbacks or side effects. One thing to keep in mind is that CBD supplements and dog treats have not been evaluated by the FDA. And according to the ASPCA Animal Poison Control Center, there is not a lot of scientific research looking at CBD for pets, so it's always best to consult with a veterinarian first.
In addition, there are some potential side effects, although they are usually quite mild. According to Dr. Jerry Klein, the American Kennel Association's Chief Veterinary Officer, some specific side effects to watch out for include drowsiness, dry mouth, or lowered blood pressure. A study in Animals also noted diarrhea as a potential side effect. However, pet owners may find some assurances in a 2016 report from the Journal of the American Holistic Veterinary Medical Association (JAHVMA), which notes that there is anecdotal evidence to suggest that CBD oil may be helpful for dogs with chronic pain, anxiety, and other health issues.