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Can dogs have corn?

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Dogs are beloved pets in many households, and their owners want to make sure they are feeding them nutritious and safe diets. One common question dog owners have is whether dogs can eat corn. The short answer is yes, dogs can eat corn in moderation as part of a balanced diet. However, there are some important things to consider before feeding corn to dogs. Keep reading to learn more about whether and how dogs can eat corn.

Can Dogs Have Corn?

The answer is yes, dogs can safely eat corn in small amounts as an occasional treat or as an ingredient in their regular dog food. Corn is a common grain used in many mainstream commercial dog foods. It provides carbohydrates for energy, fiber for healthy digestion, and antioxidants like lutein and zeaxanthin.

Some key things to know about feeding corn to dogs:

  • Whole corn, like corn on the cob, should be cooked before feeding to dogs.
  • Too much corn can lead to digestive upset in some dogs who don’t tolerate it well.
  • Dogs cannot digest the entire corn kernel and will pass much of it in their stool.
  • Only feed small portions of corn as 10% or less of their daily diet.

Overall, corn is not toxic or unsafe for dogs in small amounts. But there are better carb options like brown rice and oats with more nutritional value.

Benefits of Corn for Dogs

Here are some of the key benefits corn can provide dogs:

Carbohydrates for Energy: Corn contains easily digestible carbohydrates that provide dogs with energy. The carbohydrates are converted to glucose that fuels their bodies. However, carbs from whole grains like rice and barley are generally superior.

Dietary Fiber: The indigestible parts of corn give dogs insoluble fiber that promotes regular bowel movements and healthy digestion. Soluble fiber sources like oats are more beneficial.

Antioxidants: Corn contains carotenoids like lutein and zeaxanthin. These plant pigments act as antioxidants to reduce inflammation and cell damage in the body. But other grains and veggies offer higher antioxidant content.

Crunchy Texture: The crunch of corn kernels provides mild abrasiveness that helps clean dogs’ teeth and massage their gums as they chew. This gives corn some dental benefits.

Overall, while corn has some positives, there are usually better options to provide the same nutritional benefits to dogs, such as oats, brown rice, barley and leafy greens.

Risks of Feeding Corn to Dogs

While small amounts of corn are safe for most dogs, there are some potential risks with feeding larger amounts of corn regularly:

Digestive Upset: Since dogs don’t fully digest corn, too much can lead to loose stools or flatulence. Dogs prone to gastro issues may not tolerate corn well.

Weight Gain: The high glycemic index of corn means it can spike your dog’s blood sugar. Excessive corn intake may contribute to obesity.

Nutrient Deficiencies: Corn is not very nutrient-dense compared to other grains and veggies. Relying too much on corn could lead to deficiencies of some vitamins and minerals.

Allergies: Corn is one of the most common food allergens for dogs along with wheat, dairy and chicken. If your dog has an allergy, corn should be avoided.

To prevent issues, corn should make up no more than 10% of your dog’s total daily calories in most cases. Monitor your dog for signs of intolerance.

Is Corn Good or Bad for Dogs?

In moderation, corn can be a fine addition to a dog diet for some dogs. However, other grains like oats, barley and rice tend to be more nutritious carb sources. Some key points:

  • Corn lacks protein – Only has about 8-10% protein compared to other grains
  • Poor amino acid profile – Low in key amino acids dogs need
  • Lower vitamin and mineral content – Deficient in nutrients like iron and B vitamins
  • Higher glycemic index – Spikes blood sugar more than low GI carbs
  • Common allergen – Dogs may develop allergies to corn

While corn won’t harm dogs in small amounts, there are better options you can choose instead like brown rice, oats, quinoa and sweet potatoes for the carbs in your dog’s diet.

Best and Worst Types of Corn for Dogs

If you do wish to occasionally feed corn to your dog, some types are better choices than others:


  • Plain cooked corn – Simple cooked yellow or white corn kernels
  • Popcorn – Plain air-popped popcorn without butter or salt


  • Corn on the cob – Large pieces pose a choking hazard to dogs
  • Corn chips – Heavy salt and fat content
  • Corn bread – Can be made with unhealthy fats, seasonings
  • Corn flour – More processed and higher glycemic index

Plain corn kernels or popcorn with no added fat or salt are the healthiest corn options to feed dogs sparingly as a treat. Heavily seasoned and processed forms of corn should be avoided.

What Types of Dog Food Contain Corn?

Here are some of the most common types of commercial dog food that contain corn as an ingredient:

  • Kibble – Dry dog kibble often contains corn as a binder and carbohydrate source
  • Canned food – Canned wet food may use corn as a thickener
  • Prescription diets – Some veterinary prescription diets include corn
  • Grain-free – Can still contain corn fiber, corn gluten meal, corn starch

You’ll typically see whole corn, corn meal, corn gluten meal, ground corn or other corn derivatives on the ingredients label. Some grain-free dog foods still incorporate corn in other forms like corn starch.

Many mass-market and budget-friendly dog food brands use corn more heavily as a cost-effective ingredient. But premium and high protein brands tend to rely on other whole grains like brown rice, barley or oats instead.

Can Puppies Eat Corn?

Corn can be fed to puppies but in strict moderation. Here are some tips for feeding corn to puppies:

  • Wait until at least 12 weeks old – Don’t feed corn before weaning
  • Start with very small portions
  • Make sure puppy tolerates corn well before increasing
  • Avoid corn snacks like corn chips due to high salt
  • Cook plain corn kernels before feeding
  • Only feed corn occasionally – Not daily

Since puppies have sensitive digestive systems, they may be more prone to issues with too much corn. Monitor stool consistency and health closely. Also, growing puppies need more protein, healthy fats, and higher quality carbs from their diet.

Overall, corn should not be a regular part of your puppy’s diet.Lean proteins, dairy, egg, oats, rice and veggies are better choices for puppy nutrition. Save corn as the occasional snack or treat in small portions.

How Much Corn Can Dogs Eat?

When feeding corn as an occasional treat, follow these portion guidelines:

For small dogs under 25 lbs: No more than 2 tablespoons cooked corn 1-2 times per week

For medium dogs 25-50 lbs: No more than 1/4 cup cooked corn 1-2 times per week

For large dogs over 50 lbs: No more than 1/2 cup cooked corn 1-2 times per week

If your dog food contains corn or corn meal as an ingredient, make sure corn is not one of the first 3-4 ingredients.


In conclusion, corn can be part of a healthy diet for dogs in moderation. Look for plain, cooked corn kernels or air-popped popcorn without seasonings as the healthiest way to feed corn. Avoid corn chips, corn on the cob, corn bread and other high fat, high salt corn products. While small amounts of corn are safe for most dogs, it’s best to rely on more nutritious carb sources like brown rice, barley, oats and sweet potatoes as the foundation of their diet. Follow suggested portion guidelines, and monitor your dog’s stool and health when introducing corn. When in doubt, check with your veterinarian for personalized feeding advice.