Should Your Pet Go Grain-Free?

Valerie Gleaton by Valerie Gleaton | November 3rd, 2010 | 15 Comments
topic: Green Living, Health & Wellness, Healthy Eating

Dog with his food bowlI have a confession to make: For years now I’ve treated myself to wholesome, organic foods while buying my pets conventional pet food. Not off-brand mystery kibble or cat chow, mind you, but still. I blamed the cat; he’s a notoriously picky eater, and the one time I offered him a sample of “the good stuff” he turned his nose up at it and staged a hunger strike until I switched back to his standard 50-cents-a-can fare. I admit, I was secretly happy that he seemed to prefer the cheap stuff.

Searching for something better

But the guilt caught up with me again and I decided to give it another go. We recently adopted a 7-month-old boxer/pit bull/lab puppy, and I wanted to start her off on the right paw, nutritionally. I headed to our local natural pet store and gave the nearest salesperson my requirements: a high-quality dog food that was still affordable (being a large breed puppy, she eats a lot).

He pointed me toward a brand of kibble that he said was not only a quality choice, but also one of the least expensive in the store. Among its other merits (high protein, antioxidants, omega fatty acids), the employee noted that it was also grain-free.

Heading toward the canned cat food, he recommended another grain-free variety for my picky kitty.

“Why grain-free?” I asked. I don’t stick to a gluten-free diet, so I wondered why my pets should.

“Grain-free foods are usually higher in protein,” he explained. “And grain-free is especially important for cats, because they really can’t digest the grains well.”

Investigating grain-free

Was he right? Should my animal companions be eating a diet devoid of wheat, rice or corn?

The argument goes something like this: In the wild, wolves and wild dogs primarily eat meat. Wild cats eat even fewer grains — only “the very tiny amount of grain or vegetable matter a mouse or bird stomach might contain.” (Ewww.) Grain is often added to pet food because it is a less expensive source of calories and nutrients than meat — a filler.

But it seems that grains can cause problems for some companion animals, just as they can for some humans. Grains can aggravate allergies (a friend’s dog has been on a grain-free diet since puppyhood due to severe skin allergies) and can contribute to weight problems.

Aside from these specific ailments, grain is generally more difficult for carnivores like cats and almost-carnivores like dogs to digest than meat.

Making the switch

While neither of my pets suffers from allergies or animal obesity, I still decided to make the switch to food that more closely mimics their natural diets.

Comparing my dog’s new kibble to her old conventional brand, the first three ingredients are “bison, lamb meal and chicken meal,” as opposed to “ground yellow corn, chicken by-product meal and corn gluten meal.” The protein content is higher as well: 32 percent in the grain-free variety versus 28 percent in the conventional brand.

The same held true for my cat’s new canned food: The first ingredient in his conventional salmon dinner was “meat by-products” while the first ingredient in his natural, grain-free food is, reassuringly, “salmon.” And, joy of joys, he loves it!

And, although my dog’s natural, grain-free kibble was slightly more expensive than her conventional grocery store brand, I can feed her less of it (3.5 cups instead of 5.5 cups) because it’s not full of fillers, so it actually ends up costing about the same. Now I can feed both my pets with a clean conscience, without worrying about my empty wallet.

Before you go grain-free

  • Ask your veterinarian whether a grain-free diet is right for your pet. Mine was on board, but your pet could have a condition (such as a kidney problem) that precludes him or her from making the switch.
  • Companion animals need some fiber in their diets, so make sure to choose a grain-free food with fiber in it (my cat’s new food includes green peas, flaxseed and dried cranberries, and my dog’s new kibble has sweet potatoes, peas, tomatoes and berries).
  • Inactive animals may gain weight on a grain-free diet, so pay close attention to the feeding instructions on the bag or can. You may need to give your pet less food than on a conventional diet.
  • Some grain-free foods have a lower moisture content than conventional foods, so make sure that your pet has access to plenty of fresh water.
  • An abrupt change in diet can cause digestive problems in some pets, so switch gradually by mixing increasing amounts of the new food with decreasing amounts of the old food.
  • Monitor your pet’s reaction to the new food: appetite, energy levels, digestive issues (yes, that may mean taking a look when you scoop the poop). A short adjustment period is to be expected, but you should consult your veterinarian if the reaction seems extreme or is ongoing.


  1. Thanks for this information. I just recently adopted an olde english bulldogge and was having the grain free conversation with a friend. Honestly, I have never considered switching my cats food before.

    gloria | July 7th, 2012 | Comment Permalink
  2. Thanks for the info. What brand was the dog food that you switched to?

    CS | August 19th, 2012 | Comment Permalink
  3. Glad you liked the post, CS! She eats Taste of the Wild brand and loves it! They have a few different flavors and I just switch it up each time. Bonus: It’s one of the less expensive brands of grain-free dog food :)


    Valerie Gleaton | August 30th, 2012 | Comment Permalink
  4. For cost effective Grain-free Visit It will do some help to you.

    Paul Roberts | November 9th, 2012 | Comment Permalink
  5. I have switched both dogs and cats grain free. I had a dog who got cancer. Grain is carbohydrates. Carbs feed cancer per the oncologist. I switched them all to grain free. I have noticed that my cats are thin and full of energy. Cats can get obese after they are fixed. That has’t happened. I also noticed my dogs poop is well formed and they don’t have any skin issues/hot spots. I truly believe that grain free is better. I have 5 dogs and 8 cats.

    ginny | March 10th, 2013 | Comment Permalink
  6. FYI…I feed the cats Nutra Vita and the dogs get Evo or Merricks. From me is also a good brand for both. Bless all you animal people.

    ginny | March 10th, 2013 | Comment Permalink
  7. Even cats with kidney disease benefit from grain free diets, scientific research backs this up. The prescription brands from the Vets are not good, just expensive.

    E. Rand | March 14th, 2013 | Comment Permalink
  8. Been doing this for years with our dog, and what a difference it has made. There are a couple brands we like including Blue Diamond but definitely not the stuff you can buy from the vet.

    Lisa Harris | April 21st, 2013 | Comment Permalink
  9. Good info

    Pitter | September 13th, 2013 | Comment Permalink
  10. I reciently switched foods and I notice the difference. Fred’s litter box is less potent. He has kcd and he has less acid reflux, his ears are clearing up and he enjoys what he eats

    Genevieve | August 5th, 2014 | Comment Permalink
  11. I am a believer in grain-free dog food. Why wouldn’t anyone want a healthier dog?

    felo136 | January 19th, 2015 | Comment Permalink
  12. Funny how we sometimes are very selective about the quality of food we eat, yet we pay little attention to the quality of food we feed our pets. What if your family ate steak dinners while shoving you a bowl of Ramen Noodles?

    Felo136 | January 20th, 2015 | Comment Permalink
  13. I have never thought about making sure my pet gets the organic and good diet that he needs, even though I am very conscious about what I’m putting into my body. At first when I read a grain-free diet for pets, I was confused like you were. I didn’t think animals had any gluten problems, so I had no idea that it was hard for cats to digest grains. I’m going to pay a couple more dollars and make the switch to grain free food for my cat, that way she can live a long and healthy life, like me!

    Angela Downer | March 4th, 2015 | Comment Permalink
  14. i have a very picky yorkie/chihuahua – i have had her on grain free high protein dry foods all it did for her was create huge poop piles, and cause weight gain and that was even cutting way back on the amt served each day, which was too much and she was always hungry – grain free foods are good if: your dog is highly active so it has burn off the calories and if your dog has allergies – mine isn’t active enough to warrant feeding a grain free food and also she isn’t allergic to anything – i have her on royal canin and yes i know it has corn, wheat, etc that i know a lot people are against feeding but she does well on it. she likes and eats it without hesitation. which works just fine for me

    sharron | May 7th, 2015 | Comment Permalink
  15. i have had quite a few people rake me over the coals for feeding my dog royal canin – been called an idiot, been accused of abusing and shouldn’t own a dog because i won;t feed her a high quality food – doesn’t feeding your dog come down to what the dog does best on?

    sharron | May 7th, 2015 | Comment Permalink

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