Grain Free Cat Food: What You Need to Know


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Find a cat food that fits your pet’s needs

Visit any supermarket 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 favourite 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.

What Is grain-free cat food?

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.

Woman playing with cat

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:

  • Itchiness
  • Excessive grooming
  • Excessive hair loss
  • Bald patches
  • Inflamed skin
  • Sores and scabs
  • "Hot spots"

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.

Two gray and white cats look up in anticipation.

Does grain free also mean gluten free and low carb?

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.

Are grain-free cat foods high in protein?

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 realise (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 cast (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 they need to be healthy.

How to find the right food for your cat

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.

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