Food Allergies in Dogs: A Helpful Guide

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In today’s world and economy, it seems like every time you turn around, someone you know is dealing with the symptoms of allergies related to something. It could be environmental or seasonal allergies, or it could be related to food. Especially with all the “stuff” found in foods these days.

But did you know that dogs are much like people, and they too can develop allergies? In fact, food allergies are a very common ailment in dogs because of the way commercial dog foods are made. With many brands of commercial dog food, the goal is quantity over quality, despite any claims to the contrary.

Unfortunately, (especially when it comes to feeding your dog commercial brands of dog foods) a food allergy can be difficult to narrow down. This makes finding the offending agent in your dog’s diet and removing it a bit of a treasure hunt. Often, there may be more than one offending agent, which only makes things even more difficult.

No matter which way you look at it, trying to figure out the source of a dog’s food allergy can be a challenge, so this is a helpful guide intended to steer you in the right direction. Hopefully, it will aid you on your quest to bring relief to your four-legged family member.

What is a Food Allergy?

A food allergy is when your dog’s body and immune system responds negatively to proteins (and possibly other chemicals and additives) that are often added to commercial grade dog foods to make them more attractive and “healthy” to consumers.

These additives are placed in both wet and dry foods, so no matter which version you get, your dog could still develop an allergy to it. Many of the ingredients in commercial foods that dogs develop an allergy to sound innocuous enough, but in fact, they can cause a great deal of havoc.

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Some of the most inflammatory ingredients include:

  • Corn
  • Dairy products
  • Wheat
  • Soy
  • Fish
  • Eggs

Food allergies in dogs can run the gamut from a very mild case to a severe case that makes your dog utterly miserable. A food allergy can come on suddenly or establish itself gradually over time, especially if you feed your dog the same thing day in and day out. Regardless of how severe the case may be, no dog is a happy camper when suffering from the symptoms related to food allergies, even if the case is mild.

What Kind of Dog Can Develop Food Allergies?

The short answer is that any dog can develop a food allergy. It doesn’t matter the breed, it doesn’t matter whether they are male or female, it doesn’t matter whether they are spayed, neutered… no dog can escape the potential they possess to develop a food allergy. There are too many things added to a typical diet in today’s economy that a body (human or canine) simply isn’t meant to process.

Dogs can suffer from food allergies even when they are pups, and they can develop a food allergy well into their golden years. Oftentimes, dogs that already have some sort of pre-existing allergic condition are more susceptible to developing a food allergy than dogs that have no pre-existing allergic conditions. Because their immune system is already compromised and over-reactive, it makes the development of allergies to other triggers that much easier.

Symptoms of Food Allergies in Dogs

Symptoms of food allergies in dogs can mimic symptoms of other conditions, so it may be a little difficult to get to the bottom of your dog’s angst at first. Sometimes a dog can experience symptoms that appear random, but aren’t. They may be related to a food allergy.

Some of the more common symptoms of food allergies in dogs include:

Dogs can also experience symptoms that mimic the same type of reactions humans may get with a food allergy, such as:

If it’s a severe allergic reaction, your dog may experience swelling of the airways, difficulty breathing, and a rapid heart rate. A dog with a very severe allergic reaction to a food ingredient like this could be going into anaphylactic shock.

In this case, the situation becomes an emergency and you need take your dog to see your vet immediately. A dog suffering from anaphylactic shock can be fatal if not treated quickly.

Food Allergy? Or Just Intolerance?

There is a difference between a food allergy and a food intolerance. They are two distinct disorders, and they produce distinct reactions. Food allergies involve your dog’s immune system.

However, a food intolerance is largely a problem of the gastrointestinal system. A dog with a food intolerance may suffer from things like nausea, diarrhea, and other symptoms related to an upset tummy. These symptoms are digestive issues, not immune system issues.

Another difference with a food intolerance versus an allergy is that a food intolerance is short-lived and resolves once the offending agent passes through the gastrointestinal system. A food allergy on the other hand, will trigger symptoms constantly and your dog may not respond to any of the treatments administered by your vet.

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How Do You Know It’s a Food Allergy?

It can be difficult to pin down a cause when it comes to any type of allergy in dogs. There is a myriad of other health conditions that can trigger symptoms that resemble food allergy symptoms, so to make an accurate diagnosis, those other health conditions must first be ruled out.

Sometimes dogs are allergic to flea bites and other parasites, and sometimes they suffer from bacterial or yeast infections. Sometimes dogs develop atopic dermatitis or conditions like demodectic mange.

All these health conditions can trigger symptoms like itching, hair loss