Apples can be a healthy treat for dogs when given in moderation. They are a good source of vitamins A and C, as well as fiber. However, be cautious with the seeds and core, as they may contain cyanogenic compounds which are harmful if consumed in large quantities. Always remove the seeds and core before offering apples to your dog.

Additionally, introducing any new food should be done gradually, monitoring for any adverse reactions. While most dogs can enjoy apples without issues, each dog is different, and some may have sensitivities. It's best to consult your veterinarian if you have concerns about feeding apples or any new food to your dog.