When it comes to the amount of chewing, there are no strict rules set in stone. It is worth mentioning that certain dogs engage in extensive chewing, devoting hours each day to gnawing on toys or anything else they come across. Chewing is a natural behavior for canines, so as long as your dog isn't chewing on themselves and their chewing habits haven't suddenly changed, there is typically no cause for concern (although it's advisable to consult your veterinarian if you have any worries). In most cases, it is more crucial to pay attention to what your dog is chewing rather than the duration of their chewing sessions.