Dogs can eat honeydew melon safely in moderation. Honeydew is not toxic to dogs and can provide some hydration and trace vitamins, but only small amounts should be given because of its sugar content and the potential for digestive upset. Always remove the seeds and rind before offering honeydew to a dog, as the seeds can be a choking hazard and the rind is hard to digest. Additionally, it is important to introduce honeydew slowly to watch for any allergic reactions or sensitivities. Overconsumption could lead to stomach upset or diarrhea.