Why Does My Dog Eat Grass?

You might be taking your dog out for a walk and he or she suddenly starts munching on grass for apparently no reason. Your dog just swallows it as if it is part of his every day meal. If your dog occasionally eats grass, it’s not a big deal. However, if this behavior happens every time you go on a walk, it might be time to address the issue.

Is It Normal for Dogs to Eat Grass?

Yes, it’s actually quite normal for dogs to eat grass. Veterinarians call this behavior “pica,” which refers to the eating of non-food items. In dogs, grass is the most common target. While it may seem odd, many healthy dogs occasionally chew on grass without showing any signs of illness or distress.

Some dogs do it out of instinct or habit, and many simply enjoy the taste or texture. And it might be a one-time deal or just for the heck of it. And that’s OK if it doesn’t occur every time you walk.

Could Eating Grass Be a Sign of an Upset Stomach?

One of the most common beliefs is that dogs eat grass when they have an upset stomach. This theory gained traction because some dogs vomit after consuming grass. However, not all dogs who eat grass vomit afterward, and many who vomit after grass-eating show no signs of being sick beforehand.

However, if your dog is eating grass and vomiting frequently, it’s worth paying attention. Occasional vomiting may not be serious, but repeated episodes could signal a more persistent gastrointestinal issue that should be checked by your veterinarian.

Is My Dog Missing Something in Their Diet?

If your dog is eating grass, some dog owners might think that their dog eating grass is a sign of a nutritional deficiency. While this can sometimes be the case, especially if the dog’s diet lacks fiber or other essential nutrients, it’s not always the reason. Dogs on balanced, high-quality diets often eat grass just as much as those who might need a dietary adjustment.

That said, if the grass-eating is frequent and obsessive, it might be a good idea to speak with your vet about your dog’s current food and whether any improvements can be made.

Do Dogs Eat Grass Out of Boredom?

Dogs need physical and mental stimulation every day. If your dog is spending a lot of time outside without much to do, eating grass could simply be a way to pass the time. This is especially true for younger dogs or high-energy breeds. Dogs that are left alone for long periods, or not given enough enrichment, may turn to chewing on grass (or other items) as a form of entertainment.

Offering puzzle toys, regular walks, and interactive play can help reduce the grass-eating caused by boredom. This is true of anything that your dog eats. Or if they stop to eat different items on the ground when you walk your dog.

Your Dog Might Eat Grass to Get Your Attention or Is Anxious

Some dogs will eat grass because it calms them down when they are feeling anxious. While this isn’t always the case, it does occur in some dogs.

Another reason your dog might chew on grass it to get your attention. Even if the attention is negative. Your dog might just want to make sure that you are watching and focused on them and not scrolling on your phone!

When Should You Worry About Your Dog Eating Grass?

Although eating grass is usually harmless, there are times when it can become a concern. If your dog is eating grass excessively, vomiting often, or showing other signs of illness like diarrhea, lethargy, or loss of appetite, it's time to consult your vet. You should also be cautious about where your dog is eating grass. Lawns treated with pesticides, herbicides, or fertilizers can be toxic. Always try to prevent your dog from grazing in areas that may have been chemically treated.

What You Can Do to Curb Your Dog’s Grass-Eating Habit

If your dog’s grass-eating bothers you, or you're concerned about exposure to harmful chemicals, there are a few steps you can take. First, make sure your dog is on a complete and balanced diet that includes sufficient fiber. Second, make sure they have plenty of physical activity and mental engagement every day.

If the habit continues, keep your dog on a leash in areas with treated grass and provide safe alternatives like dog-friendly chew toys or healthy treats to redirect the behavior.

Final Thoughts

So, why do dogs eat grass? For most dogs, it’s a normal and harmless behavior that doesn’t require much intervention. Whether it's due to instinct, curiosity, or even just boredom, occasional grass nibbling is generally no cause for alarm.

However, if your dog is eating grass and/or vomiting frequently, it’s always smart to check with your veterinarian. As long as your dog is healthy and safe, a little lawn grazing now and then is nothing to worry about.