Whatever the reason, most experts believe it's okay to let your dog eat grass. But they do suggest a couple of caveats: If the grass is eaten in gulps and your dog vomits, or there is a sudden increase in grass eating, it's time to talk with your veterinarian.
Does grass help dogs upset stomach?
Most vets agree that eating grass probably helps soothe a dog's upset stomach. An “upset stomach” usually means that stomach acids are building up.
Why do dogs eat grass when nauseous?
The other type of grass eating is thought to be more of an instinctive behavior. This is thought to be a deliberate attempt to induce vomiting after they've swallowed something that makes them feel ill. It is possible your dog is suffering from an upset stomach, and their instinct is to throw up as a form of relief.
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