Is a treat from the table OK for your dog? That depends on what it is.

Avocados contain a compound called pepsin, an oil-soluble toxin that can be dangerous to dogs. Not only is pepsin in the fruit itself, but also in the pit, leaves, and even the bark of an avocado tree.

Dogs sensitive to pepsin may experience breathing difficulties, diarrhea, vomiting, heart congestion, and even death.