Many varieties of corn are safe for most dogs to eat in moderation, but corn cobs are not safe for dogs to eat.

It’s a good idea for dog owners to cook their corn for their dogs. When it’s eaten raw, it contains a toxin called vomitoxin.

The corn cob is a delicious treat for dogs and people alike. Although it’s a good source of protein, it’s not a safe snack for dogs.

However, thousands of dogs are given corn cobs to chew on or they find one in the trash and the outcome is an expensive one.

Dogs that chew on corn cobs will have them stuck in their digestive tracts, and if they eat enough, they could cause intestinal blockages, which need to be corrected.

If the cob isn’t removed, it can cause fatal bowel obstructions.

This year’s corn crop is right around the corner and I can’t wait to get my hands on a few dozen ears.

If you have never tried Ohio sweet corn, then you’re truly missing out on a delicious side dish for your cookouts.

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It’s not just delicious, it’s also the sweetest and crunchiest most scrumptious corn in the world. But it’s only around for a short while!

When it comes to dogs, I know that eating corn on the cob is going to make them nervous when they are around other things.

The fear of dogs was put into me many years ago when I worked at a vet clinic and one of the receptionists brought her dog in that was very ill.

It was determined that the dog had an obstruction in his stomach after being examined by the veterinarian and having x-rays done.

The vet cut a 2-inch corn cob out of the dog’s stomach in less than 30 minutes.

They weren’t sure exactly how long it had been in there but the lining of the stomach had begun to rot.

Thankfully after months of setbacks and loads of medication the dog made a full recovery. Unfortunately that wasn’t the last corn cob I would see pulled out of a dog’s stomach.

Can Dogs Eat Corn On The Cob?

Corn is the only vegetable that is both a carbohydrate and a source of protein, so it’s important to make sure that you choose high quality organic corn when you purchase it.

While corn is lower in fat and calories than many other carbohydrates, whole corn is harder for dogs to digest than most other carbohydrates.
Most dogs can safely eat plain corn but the core of the corn should not be given to them. The core of the corn is not digestible and if ingested in large pieces can cause a choking hazard or it can become lodged in the intestines, causing an obstruction.

Dogs can get a hold of corn off the cob in a bad way. If you’re going to give your dog corn off of the cob you should avoid adding butter or salt to it, because corn cobs contain gluten which can cause pancreatitis.

Signs Of a Cob Corn Obstruction

When your dog eats, it usually takes between 10-24 hours for the food to move through the entire digestive tract.

Some bigger objects,  like corn cobs, can take much longer.

Signs of a corn cob obstruction can be:

  • vomiting
  • straining to defecate
  • loss of appetite
  • diarrhea
  • lethargy
  • stomach pain or tenderness in the abdomen

How Long Can A Corn Cob Stay In A Dog’s Stomach?

If a corn cob is not stuck in the intestines but resting in the dog’s stomach it will be there until it’s surgically removed.

This can be weeks or even months if a dog isn’t displaying signs of being sick and if their owner doesn’t know that they ate the cob.

The longer the corn cob sits in a dog’s stomach the more serious the situation can become.

If you know that your dog ate a corn cob but seems fine after a few days, you should still contact your veterinarian.

Just because your dog isn’t showing signs of being sick after swallowing a cob, doesn’t mean that the cob isn’t doing damage to your dog’s intestines.

How To Help A Dog That Ate Corn On The Cob

If you know that your dog ate a piece of the corn cob, contact your veterinarian immediately.

Since a corn cob can be a choking hazard for dogs, it is not recommended to induce vomiting unless instructed by your vet.

Tips On Disposing Corn Cobs So Your Dog Can’t Get Them

Prevention is key!

If you have a dumpster diver (garbage can diver) it’s best to dispose of the corn cob in another trash bin that your dog doesn’t have access too and that has a locking lid.

Sherman and Leroy don’t try to get in the trash anymore but just to be safe we place our eaten corn cobs in a small bag and then place them in a sealed garbage can in the garage.

I try not to place them in outside trash bins where raccoons may be able to get them because then there’s a chance that we might encounter that somewhere down the road on our walk.


Don’t leave corn on the cob for the birds or squirrels.

There’s a chance they could grab the cob and drop it in your yard.

We don’t have a bird feeder in our yard but our neighbor does.

One day I realized that they were leaving corn on the cob out in their feeder and I politely asked if they would mind not doing that.

They had no problem with my request and didn’t realize that it could be a hazard for dogs.

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