Yes, dogs can drink Gatorade, but it's not recommended. Dogs need water to hydrate, not sugary drinks like Gatorade. If your dog consumes too much Gatorade, he could end up with an upset stomach or even diarrhea. Gatorade does contain electrolytes that are beneficial for dogs, but it's best to stick to plain water for your pooch. If you do give your dog Gatorade, make sure it's in moderation and only as a treat.