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 Dogs Eat Cornstarch? Vet-Approved Nutrition Guide & FAQ

Can Dogs Eat Cornstarch

Cornstarch is a commonly used ingredient in cooking and baking, often as a thickening agent for casseroles or soups. It is an excellent source of fiber and, as an added ingredient in many dog foods, is a wiser choice for dogs that have shown sensitivities to gluten or wheat.  Although it is unlikely that even the greediest of canines would dive into a bag of cornstarch, as an ingredient on its own, it would not be advisable to allow your dog to consume too much, but it is a very safe, if not recommended, additive to a canine diet.

divider dog paws 4 oct 2024

What Is Cornstarch?

Although closely related to corn flour and corn meal, which are milled from the whole corn kernel, cornstarch is a more refined product. Derived only from the endosperm of the kernel, without the tough outer coating, the resultant flour is more powdery in texture than corn flour, making it highly absorbent.

Cornstarch is a common ingredient in many dog foods, being a cheap additive to give form and bulk. Most commercial dog foods will contain some sort of bulking agent; without it, the result would be a clumpy, watery mess. Flour derived from wheat, oats and barley are the most common types of flour used in commercial dog foods, but corn flour, meal and starch are more prevalent in foods designed to be lower in allergens.

Cornstarch in an Ingredient Bowl
Photo Credit: Michelle Lee Photography, Shutterstock

Is Cornstarch Safe for Dogs?

As a normal additive in dog food, absolutely. Although the actual percentage of cereals (grains, flour, etc.) will vary from food to food, all commercial diets must adhere to guidelines about content and labeling, which will not exceed the recommended daily allowance of these ingredients. Cheaper or lower quality foods may approach the higher end of these allowances, but will never exceed a safe amount. Care should be taken when using dog foods higher in cereal content as they are more likely to contribute to weight gain.

If you are looking to prepare your dog’s food at home, the need for a thickening or bulking agent tends to be less of a concern, and ingredients such as rice and vegetables are more commonly used to provide carbohydrates and fiber rather than cereals and grains.

There has been a popular movement over recent years to avoid wheat, flour and grains in dog food altogether. As humans have become more aware of wheat intolerances, there has been a departure from the use of cereals in dog foods to meet consumer demands, but much of the negative press is undeserved. Whilst there are dogs that suffer with intolerances to wheat, they are rare; most dog food sensitivities lie in the protein ingredient rather than with wheat.

There is also something of a misconception that ingredients like cornstarch are just “cheap fillers”. In this instance, the term may be true, but that doesn’t mean it should be seen as a negative. Cornstarch may be an inexpensive ingredient which adds bulk to a dog food, but, in the right proportions, is adding necessary bulk, as well as fiber and carbohydrates.

Cornstarch Benefits

As previously mentioned, there is more awareness about wheat intolerances in the general population, as well as in dogs, and corn is a readily available and inexpensive alternative to wheat. In particular, cornstarch, milled without the tough external shell, has even been found to produce less of an allergen response to dogs and cats sensitive to corn, making it an ideal ingredient for hypoallergenic diets.

Cornstarch provides necessary fiber and carbohydrates in an inexpensive, low allergen way.

Cornstarch Alternatives

If you are wanting to avoid cornstarch, or any cereal-based ingredient, you need to ensure that your dog’s food has a good source of fiber and carbohydrates. Brown rice, potatoes, sweet potatoes, carrots and green beans are great fresh ingredients, but if you are looking for a direct cornstarch replacement, tapioca flour or potato starch will add similar properties (such as thickening) for dogs with a proven corn allergy.

miniature schnauzer dog standing on sofa and eating dog food from bowl
Photo Credit: DegrooteStock, Shutterstock

divider dog paws 4 oct 2024

Conclusion

Cereals and grains have reduced in popularity in dog foods in recent years, but not necessarily for the right reasons. Generally, dog foods need some sort of “filler” which is a source of fiber and carbohydrates, and cornstarch is one such ingredient. The fact that they are inexpensive and add bulk to food does not necessarily mean they are just ways for a dog food manufacturer to produce more volume with less quality ingredients.

Allergies to wheat are not very common in dogs, corn allergies even less so. Cornstarch provides an excellent and inexpensive source of carbohydrates and fiber for commercial dog foods and, in this setting, should be considered completely safe. It has even been found to produce no allergic response in dogs that have a corn allergy, suggesting that it could be used as a cheaper additive to low-allergen dog foods.

See Also:


Featured Image Credit By: Yuri Tynyankin, 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 Exercise Does a Boston Terrier Need? Vet-Reviewed Facts

Playful and ready to rumble, the Boston Terrier is a lively pup with an upbeat personality. They’re quick to adapt to new environments...

How Much Does Dog Sitting & Boarding Cost in Australia? 2025 Price Guide

If you’re a dog parent down under or are planning to emigrate there sometime soon with your canine companions, one of the most...

Aussiedoodle Dog Breed: Info, Pictures, Facts, & Traits

Doodles are taking over the world! There are so many different kinds of Doodle dogs these days, with an Aussiedoodle being one of...

How Long Is a French Bulldog Pregnant? Pregnancy Stages & Tips

Having a French Bulldog in your home can be a true pleasure. These little dogs are cute, feisty, and fun to have around....

More related

Pudelpointer Dog Breed: Info, Pictures, Facts & Traits

If you can’t get enough of the great outdoors, it makes sense to get a dog that feels the same way. That’s the...

Bailey’s Panic Attacks: How Dr. Karyn is Helping

Hi, I’m Dr. Karyn. Read my introduction to learn more about me and my five funny dogs, Poppy, Bailey, Kodah, Ned, and Fred....

Adventure Medical Kits – Vet in a Box Dog Product Review 2025: An Expert’s Breakdown

What Is Vet in a Box Medical Kit? How Does It Work? Your dog loves going everywhere with you: hiking, camping, traveling, or...

15 DIY Dog Crate Table Plans You Can Make Today (With Pictures)

Kennels are essential for making your pup feel at home. You may not have the space for one, or you may want your...

Keep reading

Blue Buffalo Dog Food Review 2025: Pros, Cons & Verdict

Review Summary Blue Buffalo is one of the largest dog food manufacturers in the United States, and its surge to the top is because it creates high-quality and nutritious food for dogs. It makes all its food in the United...

Dogster_Blue Buffalo Dog Food Review

12 Best Dog Foods for Hunting Dogs in 2025 – Reviews & Top Picks

Various dog breeds make excellent hunting dogs. Labrador Retrievers, Mountain Curs, Vizslas, and even Beagles are just a few examples of perfect hunting companions. Although these dogs look completely different in color, size, and structure, they share the same instinctual...

owner feeding two hungry dogs

Can Dogs Eat Leeks? Find Out How Safe They Are!

Dogs love to nibble on human food. Most canines would clearly prefer to snack on bits of chicken and slices of cheese than stick to boring old healthy dog food. While most pet parents try to avoid giving their companions...

Can Dogs Eat_leeks

Can Dogs Eat Pastrami? Vet-Reviewed Dietary Guidance

As dog owners, we know that we need to be careful when giving our dogs little treats from our plates. Human foods can be risky for dogs because not everything that we enjoy eating is safe for them. If eating...

Can Dogs Eat_Pastrami

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

Can Dogs Eat Salmon? Vet Reviewed Nutrition Facts & Precautions

When you think of dog food, you probably think of beef or chicken instead of novel protein sources like salmon. Part of the reason lies in the habitat we associate with canines. Wolves typically live in various areas, such as...

Can Dogs Eat_salmon

8 Best Organic Puppy Foods in 2025: Reviews & Top Picks

Puppies require healthy, high-quality foods as they grow through this developmental stage. One of the best ways to ensure your puppy gets nutritious food is to look for dog food with the USDA Organic Label. In truth, it’s pretty challenging...

Cocker Spaniel puppy eating

Can Dogs Eat Raw Chicken? Vet-Verified Dietary Facts & FAQ

Chicken is a common and healthy ingredient in many dog foods, and plenty of pet parents love to feed their dogs plain-cooked chicken. If you’ve been considering feeding plain chicken to your dog, you may have wondered whether you can...

Can Dogs Eat Raw Chicken