Electrolytes can be used for animals. However, you should be careful to adjust the dosage to your animal and its condition. If there are any health problems or uncertainties, you should always contact your veterinarian.
Dogs are natural athletes and they constantly regulate their body temperature when they use energy to prevent overheating. This regulation is mainly done by panting, which not only removes heat but also loses fluids. (5)
In this process, performance decreases and the heart rate increases. Few studies have investigated the use of electrolytes in dogs.(5)