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 High-Protein Dog Food Cause Diarrhea? Vet-Verified Nutrition Facts

labrador-retriever-dog-eating

Some dogs are more sensitive to the protein in their food than others. For some with sensitive stomachs, high protein can lead to digestion issues, including diarrhea. These canines often need a food lower in protein, though an extremely low-protein food can also cause all sorts of problems. With a little bit of veterinary guidance and trial and error, you will learn how to feed your dog exactly the amount they need.

divider dog paws 2 oct 2024

Switching Your Dog’s Diet

Diarrhea in a dog can result from switching diets too quickly. If you just switched your dog’s diet to a high-protein diet, it may be that your canine simply isn’t used to the new dog food. Preferably, all dog food switches should be done slowly and progressively, ideally over 7 days.

Sometimes, dogs can also be sensitive to particular sources of protein. Your dog may be perfectly fine with high levels of pea protein. However, chicken may cause digestion problems. Therefore, strongly considering the protein source is crucial for choosing the right diet.

Simply put, practically all types of dog food can cause diarrhea, especially if the dog isn’t used to them.

dog owner talking to vet
Image Credit: SeventyFour, Shutterstock

What Happens When a Dog Has Too Much Protein?

Some dogs simply require more protein than others, such as athletic and agility dogs.

If your dog eats too much protein, there are several possible outcomes. Sometimes, nothing happens. Some dogs have rock-solid stomachs and eat almost anything, even if it includes too much protein.

Excessive protein, like fat, is typically stored in a dog’s body. Therefore, if your dog consumes too much protein, they may end up overweight or obese. Of course, obesity is linked to a variety of problems. Therefore, if you want your dog to remain healthy, they need to stay at a healthy weight.

Furthermore, excessive protein may also be expelled in your dog’s poop. However, some amino acids can be harmful to the environment, not to mention your yard. That protein has to be produced, and it is likely to be wasted if your dog doesn’t need it. If you notice brown spots in your yard around where your dog defecated, it’s likely because the poop was high in nitrogen. When you feed your dog too much protein, you’re wasting money and increasing your carbon footprint for little reason.

The Type of Protein Matters

Dogs don’t need just protein in their food. They need their constituent amino acids, which are found in different amounts depending on the protein source. After digestion, your dog will use the amino acids they need and save or expel those they don’t.

For this reason, the type of protein your dog eats matters. Sadly, we don’t know exactly what sort of amino acids a dog needs in all cases. There’s much research within the pet food industry that still needs to be done. In general, it is recommended to leave your dog on their current diet if they’re doing well on it and their vet does not object. If they aren’t doing so well, consider switching them to a food that has a different protein source.

cream dog eating from the bowl
Image Credit: Dmytro Zinkevych, Shutterstock

divider dog paws 2 oct 2024

What Ingredients in Dog Food Cause Diarrhea?

Several ingredients can cause diarrhea in dogs—just like in people. Most dogs shouldn’t get diarrhea from ingredients commonly found in dog food. However, some may be sensitive to particular ingredients.

Some of the most common allergens include dairy, beef, chicken, eggs, soy, and wheat gluten. A food allergy can manifest itself as diarrhea, skin irritation, redness, and itchiness.

What Are the Causes of Diarrhea in Dogs?

While many owners are quick to blame a dog’s food, the truth is that there are many causes of diarrhea. Some of these causes are serious and need veterinary attention. However, others usually clear up on their own. For instance, stress can cause diarrhea, but this typically clears up after the stressful event has passed.

Here are some common causes of diarrhea:
  • Stress
  • Eating garbage
  • Change in diet
  • New treats
  • Ingesting a foreign, non-food object
  • Eating toxins
  • Medications (especially antibiotics)
  • Intestinal parasites
  • Certain viral infections (like parvovirus)
  • Certain bacterial infections (like Clostridial species)
  • Pancreatitis
  • Inflammatory bowel disease
  • Liver and kidney disease
  • Certain cancers

If you’re concerned about your pet’s well-being, we recommend consulting a veterinarian.

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

PangoVet_Mention-in-Content Savings V1

While some high-protein diets can cause diarrhea, there are also many other potential problems. For this reason, you may want to see your vet if you expect your dog’s diarrhea may be caused by something other than excess dietary protein.

divider dog paws 2 oct 2024

Conclusion

Occasionally, a high-protein diet can cause diarrhea in dogs. However, this issue can also be caused by other problems, including some serious diseases and conditions that need to be treated by a vet. If your dog has other signs, you should contact your vet to ensure it isn’t something more serious.

See also:


Featured Image Credit: Jaromir Chalabala, 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

Can You Be Allergic to Dogs & Not Cats? Our Vet Answers

Animal hair is all the same, right? Nope! So, yes, you can be allergic to dogs and not cats. Your immune system is...

Adventure Dogs: Lajka’s Explorations

Hi, I’m Dr. Maja! Read my introduction to learn more about me and my two crossbreed dogs, Lava and Hela. Lajka, a little...

10 Dog Breeds That Are Similar to Pugs (With Info & Pictures)

If you have ever met a Pug, you cannot help but fall in love with the breed. Their antics and expressions are priceless....

11 Best Dog Crates in 2025 – Reviews & Top Picks!

Sometimes, it’s necessary to shut our dogs away, whether this is because of dog-shy guests, traveling, or a calming time out. Crates give...

More related

How Did My Tropical Dogs Handle Snow? Adapting to a New Environment

Hi, I’m Allison! Read my introduction to learn more about me and my three mixed-breed dogs from Thailand, Jelly, Lorraina, and Manic. Have...

How to Make a Daily Dog Schedule: A Vet-Approved Routine for Your Pup

Canines thrive on routines when living in domesticated households. Without a schedule to rely on, dogs don’t know what to expect. It can...

10 Best Raw Dog Food Delivery Services in 2025 – Reviews & Top Picks

It can be overwhelming to choose food for your dog, especially a raw diet. Raw diets have been becoming popular, so many companies...

Top 10 Most Popular Dog Breeds in Germany in 2025 (With Info & Pictures)

Germany is a dog-friendly country, with 10.7 million dogs living there. After cats (15.7 million), dogs are Germany’s second favorite pet. But would...

Keep reading

Can Dogs Be Vegetarian? Vet-Verified Nutrition & Health Facts

Dogs are considered omnivores, or facultative carnivores, meaning they can digest and utilize both animal and plant-based foods in their diet. However, did you know dogs can be fed a vegetarian diet and thrive? Dogs do not need meat in...

The dog sits near a bowl of food and licks his tongue, dry food and fresh vegetables and fruits

11 Best Dog Foods For Bernese Mountain Dogs in 2025 – Reviews & Top Picks

As a Bernese Mountain Dog owner, you want what is best for your furry friend. Bernese Mountain Dogs are a large breed that requires a high-quality diet with plenty of protein to thrive. A diet that is lacking in nutrients...

bernese mountain dog sitting on the ground

Sportmix Dog Food Review 2025: Recalls, Pros & Cons & FAQ

Introduction Sportmix is a dog and cat food brand that is owned by Midwestern Pet Foods, which was founded in 1926. This family-owned business is now in its fourth generation and the company prides itself in providing complete and balanced...

Dogster_Sportmix Dog Food Review

Can Dogs Eat Fish? Vet-Verified Facts & FAQ

Though fish is most commonly associated with cats, many dogs love it, too. If your dog goes bonkers for a fishy treat, they’re in luck—in most cases, dogs can safely eat certain types of fish as long as they’re prepared...

Can Dogs Eat_Fish

Can Dogs Eat Eggplant? Vet-Reviewed Facts & FAQ

Although your dog may want to eat just about everything in your house, there are a lot of foods that must be kept out of their reach for their own safety. Food products such as chocolate and avocado or anything...

Can Dogs Eat Eggplant

6 Best Dog Foods for Shiba Inus in 2025 – Reviews & Top Picks

As with most pets, the Shiba Inu is at its healthiest when eating high-quality dog food that is specially designed to meet its needs. This breed is energetic but also prone to becoming overweight due to being a small breed...

Shiba Inu dog eating from stainless steel bowl

Can You Freeze Fresh Pet Dog Food? Facts & Storage Tips

Fresh Pet is a popular dog food brand with a variety of different flavors and recipes, but can you freeze Fresh Pet dog food? Fresh Pet recommends storing their food in the fridge and feeding it directly from the refrigerator...

fresh Pet Dog Food Chicken Recipe

10 Best Dog Foods for Border Collies in 2025 – Reviews & Top Picks

The food that you, as a pet owner, feed your dog is one of the most important aspects of keeping your pet healthy. If you own a Border Collie, then you know how high their energy and activity levels can...

Border collie holding food bowl