Like humans, dogs have an endocannabinoid system.
Since we're not 100 percent sure of all of its functions and finer details, all we can really decipher is that it's under-serviced for the time being. In humans, that often means throwing the broad spectrum of cannabinoids at a concern, but this strategy does not work with dogs, according to the Fresh Toast.
THC is never a good idea for a pup, as it makes them nervous and anxious. We do know that non-psychoactive in humans CBD is also not psychoactive in dogs, so many have been seeking it out to help with various canine issues.