What happens if a dog is often left hungry?

Leaving a dog hungry often damages its digestive system and can lead to chronic gastritis, causing frequent vomiting and diarrhea. For young dogs, repeated hunger may cause low blood sugar, slow development, a weak constitution, and coarse fur, and severe low blood sugar can even be fatal.

Therefore, feed your dog at fixed times and in set amounts each day. If you must be away for a long time and cannot feed it, consider temporarily boarding the dog at a pet shop.