Oranges can cause a pet dog to have an upset stomach or diarrhea. This acidic fruit should only be given in small amounts. Dogs don't typically need vitamin C supplementation. read more
Though there are (unfortunately) lots of videos online of people feeding their dogs sour citrus fruits to humorous effect, this is actually a very bad idea. The RSPCA issued a warning about the dangers of these fruits to dogs after these videos surged in popularity. read more