The Difference Between Grain-Free and Gluten-Free Diets for Dogs

If you are a dog owner, you may have heard of the terms "grain-free" and "gluten-free" when it comes to dog food. But what do they mean, and are they beneficial for your dog's health? Let’s dive in and consider how these are different from one another, and which type of diet is suitable for your dog!

What is grain-free dog food?


Grain-free dog food is a type of dog food that does not contain any grains, such as corn, wheat, oats, barley, rice, or soy.  Dog food may often use these grains as fillers or sources of carbohydrates, but they are not essential for your dog's nutrition. 

It’s important to be aware of grains in diets as some dogs may have allergies or sensitivities to certain grains, which can cause digestive issues, skin problems, or ear infections. 

Grain-free dog food may help these dogs avoid these symptoms and improve their overall health.

Many grain-free dog foods use other plant sources, such as potatoes, peas, or lentils, to retain carbohydrates whilst replace grains. However, these ingredients can also be high in starch and sugar, which can have negative effects on your dog's blood sugar, weight, and dental health. 

Therefore, it is important to check the label and choose a grain-free dog food wisely!

Advantages of grain-free dog food

Some of the benefits of grain-free diets are:

  • Supports healthy coat and skin.
  • Easier on the digestive system. Grain-free dog foods are more aligned with your dog’s ancestral diet, which is high in animal protein and low in soluble carbohydrates.
  • May reduce the risk of allergies.
  • Can help your dog feel fuller for longer and have more energy.

What is gluten-free dog food?


Gluten-free dog food is a type of dog food that does not contain gluten — a protein found in wheat, rye, barley, and oats. Gluten can cause allergic reactions or intolerance in some dogs, especially those with celiac disease, which is a rare condition that damages the lining of the small intestine. Gluten-free dog food may help these dogs avoid gastrointestinal problems, such as diarrhea, vomiting, or bloating.

However, gluten-free dog food can still contain grains that do not have gluten, such as rice, quinoa, or buckwheat. These grains can provide some benefits for your dog, such as fiber, vitamins, and minerals. 

Therefore, gluten-free dog food may be a good option for dogs that are sensitive to gluten, but not to all grains.

Advantages of gluten-free dog food

Some of the benefits of feeding your dog a gluten-free diet are:

  • Promotes a healthier gut, as gluten-free dog foods can prevent damage to the intestinal lining and improve nutrient absorption in dogs with celiac disease or gluten intolerance.
  • May help with weight loss, as gluten-free dog foods can lower the glycemic index and reduce the spikes in blood sugar and insulin that can lead to obesity and diabetes in dogs.

How to choose the best diet for your dog?

The best diet for your dog depends on several factors, such as your dog's age, breed, size, activity level, and health condition. There is no one-size-fits-all solution for every dog, and you may need to consult your veterinarian or a canine nutritionist to find the most suitable diet for your dog.

In general, however, you should look for a dog food that meets the following criteria:

  • It is complete and balanced, meaning that it provides all the essential nutrients.
  • It is high in animal protein, which is the most biologically appropriate and digestible source of protein for your dog.
  • It is low in carbohydrates, especially starch and sugar, which can cause obesity, diabetes, and dental problems in dogs.
  • It is free of artificial colors, flavors, preservatives, or other additives that can harm your dog's health.
  • It is made from high-quality ingredients that are sourced from reputable suppliers and processed in a safe and hygienic manner.


If your dog has specific dietary needs or preferences, you may also consider a dog food that is:

  • Grain-free, if your dog is allergic or intolerant to grains, or if you want to feed your dog a more natural and ancestral diet.
  • Gluten-free, if your dog is allergic or intolerant to gluten, or if your dog has celiac disease.
  • Hypoallergenic, if your dog is allergic or intolerant to other common ingredients, such as chicken, beef, dairy, or eggs.
  • Limited ingredient, if your dog has a sensitive stomach or a food intolerance, and you want to feed your dog a simple and minimal diet.
  • Raw, if you want to feed your dog a diet that mimics what they would eat in the wild, and that is rich in enzymes, antioxidants, and probiotics.

At Fidele+, we also a range of dog food products to cater to different dietary needs of dogs. Our veterinary diet selection includes formulas for dogs with gastrointestinal, hypoallergenic, weight management, skin support, and growth needs

Whatever diet you choose for your dog, make sure to introduce it gradually and monitor your dog's reaction. If your dog shows any signs of discomfort, such as itching, scratching, licking, or diarrhea, stop feeding the new diet and consult your veterinarian. Remember that every dog is different, and what works for one dog may not work for another.

We hope this blog post has helped you understand the difference between grain-free and gluten-free diets for dogs, and how to choose the best diet for your dog. If you have any questions or comments, feel free to leave them below!

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