Eric asks Dr. Azza if dogs can eat watermelon, and the answer is yes. Dr. Azza explains that watermelon is 92% water, making it an especially hydrating treat on a hot day, while providing vitamins A, C and B6 along with lycopene. She recommends removing all seeds and the rind before cutting watermelon into small bite-sized pieces, which can be served fresh or frozen for a refreshing treat.