Visit any grocery store aisle and you are certain to find more and more shoppers scanning labels to make sure their food is "free" of one thing or another: gluten free, fat free, sugar free… the list grows longer each day. Now, these preferences have extended beyond the dinner table and into the food bowl, as some pet parents strive to make similar food choices for their beloved four-legged family members.
It’s no wonder that the pet food market has reacted in kind, with an array of grain-free cat food options appearing within the recent years. But is grain-free food for cats the right option for your favorite kitty? Contrary to what can be found on the internet (which is anything), grains can actually be good for your cat. Here are answers to some of the most common questions about grain-free cat food — and whether you should consider for your own pet.
Grain-free cat food is just what its name describes — a cat food made free of grains. Common grains found in cat food include wheat, corn, oats, barley and rice.
Most cats don't require grain-free food and cats with diagnosed grain allergies are unusual. In a study published in Veterinary Dermatology, corn was found to be one of the least likely sources of food allergy in a cat. Of the 56 cats in the study with food allergies, corn was responsible for four cases of allergy issues. Forty-five cats, meanwhile, suffered from allergies associated with eating beef, dairy and/or fish. So how can you know if your cat has a food allergy? Some possible signs of a food allergy include:
Cats can have allergic reactions to grooming products, food and environmental irritants, such as pollen or flea bites which are more common than food allergies. Feline acne, mites, lice, and bacteria and fungus infections of the skin all can lead to similar signs as food allergies in your kitty. You can narrow down what type of allergy your cat has by having your vet do a thorough examination and if food is suspected, your vet may recommend an elimination trial, the gold standard for diagnosing a food allergy, that can help you determine what the cause of your cat's discomfort is. If there is ever a question, your vet should be your number one source for discovering if any allergies do exist.
More than 3 million Americans suffer from celiac disease, a painful condition that can be managed by following a gluten-free diet. But the good news is there is no scientific evidence that the same condition affects cats. So, avoiding gluten is not necessary for cats.
What many pet parents forget to consider is that to replace grains, grain-free food often uses other carbohydrate ingredients such as potatoes, sweet potatoes, tapioca, lentils and peas. In fact, some grain-free pet foods contain carbohydrate levels similar to or even higher than cat food containing grains — but carbs don’t make dogs and cats fat. A sedentary lifestyle, neutering, over-feeding, feeding table scraps, consuming too much fat and calories are risk factors for obesity rather than carbohydrates. Carbohydrates from whole grains help provide your kitty with complete and balanced nutrition — the key to good health.
Protein is especially important in cat food because, unlike many other animals, protein is a cat's primary energy source. What many people don't realize (57 percent of cat parents, according to a PetMD survey) is that while cats do require a part of their protein to come from animals, their systems are also very good at digesting and absorbing nutrients from high-quality, plant-based ingredients. Plant ingredients can be an excellent source of essential nutrients, proteins, fat and carbohydrates. Providing adequate carbohydrate calories spares body proteins, like muscles, from being broken down to be used for energy.
In fact, a food that relies solely on meat as a protein source can be higher in phosphorus. While phosphorus is an essential nutrient, there is a link between high-phosphorus foods and a progression in cats (and dogs) with preexisting chronic kidney disease. Vegetables and grains are low-phosphorus sources of essential amino acids that cats need, providing your cat with a source of protein she needs to be healthy.
Research the different options available for your cat, talk to your veterinarian, then choose a high-quality food that meets all the nutrients your cat requires (and that your cat actually likes to eat). Your diligence will go a long way to ensuring your cat's health now and long into the future.
One of our staff authors prepared this article for you
Supports digestive health, nourishes skin and promotes a lustrous fur
With delicious chunks in a decadent gravy
Precisely balanced nutrition with the delicious taste of minced liver & chicken to support 5 essential building blocks for lifelong health
Science Diet's breakthrough nutrition supports ultimate digestive well-being & healthy microbiome for cats age 7+
Delicious taste of gourmet minced turkey in precisely balanced nutrition. Provide a synergistic ingredient blend to help support energy & activity level.
Precisely balanced nutrition to help avoid the formation of hairballs with the delicious taste of savory minced ocean fish
Supports the health of the whole urinary system with optimal levels of magnesium
Highly digestible food that is gentle on the stomach. Nourishes skin & promotes lustrous fur.
Grain free, easy-to-digest food that is gentle on the stomach. Nourishes skin & promotes lustrous fur.
Improves Everyday Ability to Get Up & Go
Over 70% of cats lost weight within 10 weeks when fed this nutrition (USA Study)
Precisely balanced nutrition with the delicious taste of savory minced salmon to help fuel the energy needs of cats during the prime of their life
Delicious roasted chicken and rice in a mouthwatering sauce
Delectable chunks with tender chicken smothered in a rich gravy
Supports energy level and beautiful fur in mature cats
Precisely balanced nutrition with the delicious taste of gourmet savory beef to help fuel the energy needs of cats during the prime of their life
Supports ideal body weight for cats with different body types
Precisely balanced nutrition with the delicious taste of minced salmon to help build immunity and a healthy digestive system
Science Diet's breakthrough nutrition supports ultimate digestive well-being & healthy microbiome
Improves Everyday Ability to Get Up & Go
Learn how cat's naturally feed and ways you can help meet their nutritional needs without disrupting their feeding behavior.
Get help tips for choosing a kitten, such as personality & knowing her health history, and how to prepare for her arrival at home.
Cats & Ingrown Nails: What You Should Look For
What is a cat's primordial pouch? You may be surprised to know that it's a natural part of your kitty's biological makeup! Read on to learn more.
Learn the quirky reasons why cats like cardboard boxes, such as shelter and stress relief, as well as why they often prefer a box over their carrier.
Preparing for a new kitten? Learn helpful tips for bringing home a feline friend, preparing your house, supplies you'll need, feeding tips & more.
Looking for way to enrich playtime for your kitty? Discover fun new cat activities, such as cat apps, that can keep your furry friend occupied for hours.
While it might be nearly impossible to separate your cat from your Christmas tree, learn ways you can combat her curiosity and keep her out of harm's way.
Wet vs. Dry Cat Food: Which Is Best?
Grooming is an important part of your aging cat's well-being. Learn tips to keep her looking good with these grooming tips for older, mature adult cats.
Do cats actually watch TV when they're chilling out on the couch with you? Learn more about how cats engage with and react to electronic screens.
Cat pneumonia can be life-threatening if not addressed when clinical signs start to show. Luckily, many cats treated for this illness recover.
Learn the reasons why your cat's nose may be dry and whether it might be a sign of a larger concerning issue or a common symptom of something smaller.
Discover whether or not feeding fish to your cat has any real benefits. Learn how fish can be properly included into your cat's diet.
Learn how to brush your cat's teeth vs. having a professional cleaning done, as well as common signs that she might have an oral health problem.
Learn when a cat tooth extraction might be necessary, what the recovery process can entail for cat teeth removal and how to prevent the need for an extraction in the future
Learn why your kitty gets cat zoomies, random bouts of energy that cause them to race through the house, and when zoomies could indicate a health issue.
Even though all cat breeds still produce allergens, those that shed less can be a good choice for allergy sufferers. Learn which breeds might work for you.
Can cats sweat? Are you concerned that she's panting? She might just be trying to cool herself off, but these signs could indicate a heat-related problem.
Learn more about stage 1 kidney disease in cats, such as the cause, symptoms, treatment and how the proper food can help manage her condition.
Our low calorie formula helps you control your cat's weight. It's packed with high-quality protein for building lean muscles, and made with purposeful ingredients for a flavorful, nutritious meal. Clinically proven antioxidants, Vitamin C+E, help promote a healthy immune system.
Our low calorie formula helps you control your cat's weight. It's packed with high-quality protein for building lean muscles, and made with purposeful ingredients for a flavorful, nutritious meal. Clinically proven antioxidants, Vitamin C+E, help promote a healthy immune system.
©2025 Hill's Pet Nutrition, Inc. As used herein, denotes registered trademark status in the U.S. only; registration status in other geographies may be different. Your use of this site is subject to the terms of our Legal Statement. About our Ads. Cookie Consent Tool