Popcorn may be a quick and satisfying treat for you, but it may cause serious harm to your dog. Even without the seasonings that can make your dog sick, popcorn might get stuck in your canine's throat and block his airway. Each dog is different, so talk to your vet about what is safe for your dog given his size, age and activity level.
Popcorn is a Choking Hazard
If you want to make sure your dog is safe, settle in for the evening with a few dog treats on hand to give him while you keep the popcorn for yourself. The ASPCA says unbuttered, unsalted popcorn is not known to be harmful, however, popcorn poses a choking hazard. If you do feed your dog popcorn, give him only fully popped, unseasoned kernels. Call your vet immediately if you think he might be choking.
Salt and Dairy are Dangerous for Dogs
Butter, salt and other common popcorn seasonings can cause serious health problems for your dog. The ASPCA says that large amounts of salt can cause sodium ion poisoning and onions, chives and garlic are all toxic to dogs. Milk-based products can cause digestive upset.