During the hot weather, senior pets benefit from snacks that are both hydrating and cool. Opt for treats with high water content, like watermelon (without seeds), cucumber slices, or frozen broth cubes, which can provide both hydration and relief from the heat. Always ensure these snacks are suitable for your pet's dietary needs and do not contain any toxic ingredients. Additionally, consider small amounts of frozen plain yogurt or specially formulated pet ice cream as a refreshing treat. Always consult with your vet to confirm the best choices for your aging companion.