Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Can Dog Food Cause Ear Infections? Vet-Verified Facts & FAQ

ear infection on dog

Dogs, just like humans, can suffer from ear infections. Your dog might never have one, or they may get them routinely. If you find that your dog is getting frequent ear infections, you’re probably looking for the trigger.

If you’re wondering if food can contribute, the answer is yes, absolutely. In many aspects, food controls how the body functions, and when things are out of whack, many symptoms can appear. Let’s explain how it works and what you can do to protect your dog from ear infections.

divider dog paws 2 oct 2024

What Are Ear Infections?

There are three areas ear infections occur—outer, middle, and inner. Outer ear infections are the most common, though all can be caused by an unhealthy amount of yeast, bacteria, or fungi building up in the ear’s outer portion.

When this buildup occurs, it triggers overgrowth in the ears, irritating the areas throughout. You might notice your dog acting differently or smell the infection. Yeast has a particular sort of foul odor that is a telltale sign.

Some common symptoms of ear infections in dogs include:
  • Ear discharge
  • Pawing at the ear
  • Odor
  • Redness or irritation

They are pretty easy to detect, especially if you know what you’re looking for. Ear infections almost always require veterinary attention. Antibiotics usually work to treat bacterial infections, but other agents such as yeast might be the cause of the infection and need a different treatment. Routine care at home is recommended.

Make sure to keep your dog’s ears dry and clean. Use any cleaners, drops, or topical ointments your vet suggests.

Dog Food & Ear Infections: What’s the Connection?

Allergies irritate several areas of the body, but a huge one is the skin. You might not just notice gross buildup and gunk in the ears but also body irritation. Dog food is a very common culprit to recurring ear infections when the underlying trigger is a food allergy.

Symptoms of an underlying food allergy include:
  • Itchy skin, paws, and ears
  • Vomiting
  • Diarrhea
  • Nausea
  • Licking
  • Scratching
  • Weight loss
  • Face rubbing
  • Redness
  • Head shaking

You might not have connected the dots quite yet, but have your dogs been experiencing a few of these symptoms in addition to ear infections? Yes, food allergies can cause all kinds of outward and inward effects.

If your dog struggles with any of the signs above, you should take them to be examined by a vet.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's our online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content Savings V1

divider dog paws 2 oct 2024

Common Allergy Triggers in Commercial Dog Food

Thanks to science, nutritionists and researchers have uncovered the main offenders in dog food. Let’s go over each one.

Protein

Protein is, unfortunately, a common allergy trigger for allergy sufferers (the most common, in fact)—particularly frequently seen in meat like chicken, beef, and fish.

Often, hydrolyzed or novel protein dog foods aid in digestion and nourish the body. Novel proteins use a new protein source that has never been introduced to your dog’s system before. Hydrolyzed proteins are broken down into microscopic bits so they can essentially bypass the system.

Dairy

Dairy, more specifically, lactose, is another huge trigger for dogs. A big telltale sign that your dog has a dairy allergy is itchy skin and rashes. Believe it or not, there is a difference between lactose allergy and lactose intolerance.

Lactose intolerance is linked more to gastrointestinal upset versus skin irritation. So, if dairy is causing recurring ear infections, it is usually linked more to the allergy than the intolerance.

Gluten

Gluten is not nearly as triggering as dog food companies would lead you to believe. In fact, it makes up only a small percentage of dog food allergies in total. But rather than ear infections, gluten allergies usually present with diarrhea, loose stool, mucous in stool, gas, and other gastrointestinal symptoms.

To combat these types of allergies, dogs often undergo a series of food trials to eliminate different ingredients. It can take weeks, months, or even years to uncover the cause. After so long, the culprit should reveal itself.

Just because these are the most prevalent allergy triggers, it doesn’t mean they are the only ones. Dogs, like us, can be allergic to just about anything.

divider dog paws 2 oct 2024

Do Ear Infections Have an Odor?

Usually, most people can agree that skin and ear infections have a musty, unpleasant, distinct odor. Often, ear infections don’t come alone. Dogs can also get skin yeast infections—and you’ll know it.

owner cleaning his dog ears
Image By: Yavdat, Shutterstock

divider dog paws 2 oct 2024

Recurrent Ear Infections: Alternate Causes

There are some alternatives, too. It doesn’t always point to food allergies. If you haven’t been to the vet, don’t put all your energy into one idea. There could be other explanations. Here are a few.

Antibiotic-Resistant Bacterial Infections

If you have noticed that your dog is getting recurring yeast infections after a series of antibiotics, they could be developing resistance. It isn’t uncommon to see this these days, as studies are proving.

Environmental Allergens

Your dog’s environment plays a huge role in potential ear infections. If your dog is allergic to something in their environment, symptoms might manifest similar to food allergies.

dog scratching
Image Credit: schubbel, Shutterstock

Systemic Diseases

Your dog might have an underlying disease or illness such as hypothyroidism. If you have an older pet, it is much more common as they start advancing in age.

Parasites

If your dog has parasites in its ears, it can lead to infection quickly. Ear mites are the typical culprit.

divider dog paws 2 oct 2024

Conclusion

As you can see, dog food can definitely be the culprit for your dog’s ear infections. However, it could have other reasons as well. That is why it is so important to go over any symptoms or changes with your veterinarian. Together, the appropriate testing could be done to uncover the underlying cause.

If your dog is suffering from recurring ear infections, it isn’t normal—no matter the reason. So, make sure to seek proper treatment.

See also:

Sources
 

Featured Image Credit: dawi88888, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

How Much Does It Cost to Own a Miniature Schnauzer? 2026 Price Guide

If you have your heart set on a Miniature Schnauzer, you need to know exactly how much it will cost to purchase your...

9 Best Dog Tags in 2026 – Reviews & Top Picks

Part of doing everything we can to ensure that our fur babies are safe, sound, happy, and healthy is making sure they have...

Do Dogs Need a Water Fountain? Vet Reviewed Pros & Cons

Generally, dogs do not need a water fountain. Most dogs will readily drink from a water bowl, unlike cats, who may ignore a...

Are Cane Corsos and Bandogs (Bandogges) the Same Breed? Facts & FAQ

Big, heavy, and capable of getting work done, these marvelous dogs are the perfect guardians. The imposing stature, intelligent eyes, and loyal character...

More related

Why Does My Dog Bark at Kids? 6 Likely Reasons

Dogs bark for too many reasons to count, but when they direct their vocalizations at kids, it can be particularly embarrassing or concerning...

How to Moisturize Dog Paws: 4 Vet-Approved Tips

Your dog’s paws take a beating every day, especially if they frequently run and play on rough terrain. Keeping their feet and pads...

How Dangerous Are Tibetan Mastiffs? Vet-Reviewed Temperament, Training & FAQ

Tibetan Mastiffs are a large dog breed with an intimidating appearance. While they may look scary at first, these dogs are actually affectionate...

Collie vs Border Collie: Key Differences (With Info & Pictures)

The Collie and Border Collie are two famous and beloved breeds, but the Collie might be a bit more famous in the U.S....

Keep reading

Are Greenies Good for Dogs? Vet-Approved Nutrition Guide

Dental disease is one of the most common canine health problems. Dental problems can be painful and make it difficult for dogs to eat. Severe periodontal disease can make dogs more vulnerable to tooth root abscesses and organ disease. That’s...

Greenies bites out of package

Nature’s Logic Dog Food Review 2026: Pros, Cons, Recalls, and FAQ

Review Summary Nature’s Logic was founded in 2006 by Scott Freeman. Freeman conjured up dog food that uses 100% natural ingredients without using cheap, synthetic vitamins. In 2005, the first batches of dry dog and cat food were sent to...

Dogster_Nature’s Logic Dog Food Review

Freeze-Dried Dog Food: 8 Vet-Verified Pros & Cons

Freeze-dried raw dog foods are becoming a popular option because of their high palatability and ability to provide a raw diet rich in vital nutrients. These diets also take the guesswork out of feeding a raw diet, ensuring your dog’s...

Freeze Dried Cat or Dog Food

Fromm vs Blue Buffalo Dog Food: 2026 Comparison, Pros & Cons

Whether or not you have children, many dog owners also view their canine companions as family members rather than simply pets. Just as you would for your human family, you want your dog to be safe, happy, and healthy. An...

Dogster_Dog Food Fromm VS Blue Buffalo

Can Dogs Drink Apple Juice? Vet-Verified Nutrition Facts & FAQ

Dogs can enjoy many different kinds of fruit, and apples are among the most popular fruits to give to them. While most dogs are perfectly content with eating apple slices, they can also eat different forms of apples, including applesauce...

11 Best Dog Foods for Beagles in 2026 – Reviews & Top Picks

Beagles are generally a healthy dog breed, but they can be susceptible to specific health conditions. Most Beagles tend to become overweight and obese pretty quickly, and a lot of them can have allergies and experience dry skin and coat....

Beagle eating from a bowl

9 Best Affordable Dog Foods for Pit Bulls in 2026 – Reviews & Top Picks

If you’re a Pit Bull parent, you know how strong and muscular these dogs are. They have a lot of energy, and because of their strong physique, they need food rich in protein, carbs, and omega fatty acids. Pit Bulls...

pitbull eating

11 Best Foods for Doberman Puppies in 2026: Reviews & Top Picks

If you are about to welcome a sweet Doberman puppy into your life, you need the right gear and supplies to get them off on the right paw. You have purchased a cozy bed, water and food dishes, and handfuls...

doberman puppies sitting