What happens if a dog eats too many oranges?

A dog eating too many oranges may face these issues. First, oranges are high in acid, and too many can irritate the stomach lining, causing vomiting and diarrhea. Second, although oranges are rich in vitamin C and fiber, they are not a dog’s main nutrition; too many can unbalance the diet and lack other needed nutrients. Finally, oranges contain citric acid, and eating too many can cause poisoning, with signs like vomiting, diarrhea, mouth ulcers, and indigestion.