Kirkland Signature Nature’s Domain (Dry)

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Rating: ★★★★☆

Kirkland Signature Nature’s Domain Dog Food receives the Advisor’s second-highest tier rating of 4 stars.

The Kirkland Signature Nature’s Domain product line includes 6 dry dog foods.

Each recipe below includes its related AAFCO nutrient profile when available on the product’s official webpage: Growth, Maintenance, All Life Stages, Supplemental or Unspecified.

Important: Because many websites do not reliably specify which Growth or All Life Stages recipes are safe for large breed puppies, we do not include that data in this report. Be sure to check actual packaging for that information.

  • Nature’s Domain Puppy Chicken and Pea [A]
  • Nature’s Domain Beef Meal and Sweet Potato [A]
  • Nature’s Domain Turkey Meal and Sweet Potato [A]
  • Nature’s Domain Duck Meal and Garbanzo Bean [A]
  • Nature’s Domain Salmon Meal and Sweet Potato [A]
  • Nature’s Domain Organic Chicken and Pea (3 stars) [M]

Kirkland Signature Nature’s Domain Turkey Meal and Sweet Potato was selected to represent the other products in the line for this review.

Nature's Domain Turkey Meal and Sweet Potato

Dry Dog Food

Estimated Dry Matter Nutrient Content

Protein = 27% | Fat = 16% | Carbs = 50%

Ingredients: Turkey meal, sweet potatoes, peas, potatoes, canola oil, tomato pomace, flaxseed, natural flavor, salmon oil (a source of DHA), salt, choline chloride, dried chicory root, tomatoes, blueberries, raspberries, Yucca schidigera extract, dried Lactobacillus acidophilus fermentation product, dried Bifidobacterium animalis fermentation product, dried Lactobacillus reuteri fermentation product, vitamin E supplement, iron proteinate, zinc proteinate, copper proteinate, ferrous sulfate, zinc sulfate, copper sulfate, potassium iodide, thiamine mononitrate (vitamin B1), manganese proteinate, manganous oxide, ascorbic acid, vitamin A supplement, biotin, niacin, calcium pantothenate, manganese sulfate, sodium selenite, pyridoxine hydrochloride (vitamin B6), vitamin B12 supplement, riboflavin (vitamin B2), vitamin D supplement, folic acid

Fiber (estimated dry matter content) = 4.4%

Red items indicate controversial ingredients

Estimated Nutrient Content
MethodProteinFatCarbs
Guaranteed Analysis24%14%NA
Dry Matter Basis27%16%50%
Calorie Weighted Basis23%33%44%
Protein = 23% | Fat = 33% | Carbs = 44%

The first ingredient in this dog food is turkey meal. Turkey meal is considered a meat concentrate and contains nearly 300% more protein than fresh turkey.

The second ingredient is sweet potato. Sweet potatoes are a gluten-free source of complex carbohydrates in a dog food. They are naturally rich in dietary fiber and beta carotene.

The third ingredient includes peas. Peas are a quality source of carbohydrates. And like all legumes, they’re rich in natural fiber.

However, peas contain about 25% protein, a factor that must be considered when judging the meat content of this dog food.

The fourth ingredient is potato. Potatoes can be considered a gluten-free source of digestible carbohydrates. Yet with the exception of perhaps their caloric content, potatoes are of only modest nutritional value to a dog.

The fifth ingredient is canola oil. Unfortunately, canola can be a controversial item. That’s because it can sometimes (but not always) be derived from genetically modified rapeseed.

Yet others cite the fact canola oil can be a significant source of essential omega-3 fatty acids.

In any case, plant-based oils like canola are less biologically available to a dog than fish oil as a source of quality omega-3 fats.

The sixth ingredient is tomato pomace. Tomato pomace is a controversial ingredient, a by-product remaining after processing tomatoes into juice, soup and ketchup.

Many praise tomato pomace for its high fiber and nutrient content, while others scorn it as an inexpensive pet food filler.

Just the same, there’s probably not enough tomato pomace here to make much of a difference.

The seventh ingredient is flaxseed, one of the best plant sources of healthy omega-3 fatty acids. Provided they’ve first been ground into a meal, flax seeds are also rich in soluble fiber.

However, flaxseed contains about 19% protein, a factor that must be considered when judging the actual meat content of this dog food.

After the natural flavor, we find salmon oil. Salmon oil is naturally rich in the prized EPA and DHA type of omega-3 fatty acids. These two high quality fats boast the highest bio-availability to dogs and humans.

Depending on its level of freshness and purity, salmon oil should be considered a commendable addition.

From here, the list goes on to include a number of other items.

But to be realistic, ingredients located this far down the list (other than nutritional supplements) are not likely to affect the overall rating of this product.

With two notable exceptions

First, chicory root is rich in inulin, a starch-like compound made up of repeating units of carbohydrates and found in certain roots and tubers.

Not only is inulin a natural source of soluble dietary fiber, it’s also a prebiotic used to promote the growth of healthy bacteria in a dog’s digestive tract.

And lastly, this food contains chelated minerals, minerals that have been chemically attached to protein. This makes them easier to absorb. Chelated minerals are usually found in better dog foods.

Kirkland Signature Nature’s Domain Dog Food
The Bottom Line

Judging by its ingredients alone, Kirkland Signature Nature’s Domain looks like an above-average dry dog food.

But ingredient quality by itself cannot tell the whole story. We still need to estimate the product’s meat content before determining a final rating.

The dashboard displays a dry matter protein reading of 27%, a fat level of 16% and estimated carbohydrates of about 50%.

As a group, the brand features an average protein content of 27% and a mean fat level of 15%. Together, these figures suggest a carbohydrate content of 50% for the overall product line.

And a fat-to-protein ratio of about 57%.

Near-average protein. Near-average fat. And near-average carbs when compared to a typical dry dog food.

When you consider the protein-boosting effect of the peas and flaxseed, this looks like the profile of a kibble containing a moderate amount of meat.

Bottom line?

Kirkland Signature Nature’s Domain is a grain-free plant-based dry dog food using a moderate amount of named meats as its main sources of animal protein, thus earning the brand 4 stars.

Highly recommended.

Please note certain recipes are sometimes given a higher or lower rating based upon our estimate of their total meat content and (when appropriate) their fat-to-protein ratios.

Kirkland Signature Dog Food
Recall History

The following list (if present) includes all dog food recalls since 2009 directly related to this product line. If there are no recalls listed in this section, we have not yet reported any events.

You can view a complete list of all dog food recalls sorted by date. Or view the same list sorted alphabetically by brand.

To learn why our ratings have nothing to do with a product’s recall history, please visit our Dog Food Recalls FAQ page.

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A Final Word

The descriptions and analyses expressed in this and every article on this website represent the views and opinions of the author.

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Each review is offered in good faith and has been designed to help you make a more informed decision when buying dog food.

However, due to the biological uniqueness of every animal, none of our ratings are intended to suggest feeding a particular product will result in a specific dietary response or health benefit for your pet.

For a better understanding of how we analyze each product, please read our article, "The Problem with Dog Food Reviews".

Remember, no dog food can possibly be appropriate for every life stage, lifestyle or health condition. So, choose wisely. And when in doubt, consult a qualified veterinary professional for help.

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Have an opinion about this dog food? Or maybe the review itself? Please know we welcome your comments.

Notes and Updates

09/02/2017 Last Update

  • Bill Seymour

    We have been feeding the Cosco Signature brand of dog food, Sweet Potato and Turkey Meal. An article written stated the food contains Canola Oil, known to be GMO. In a great dog food that already has plenty of other oils, why put a GMO possible oil in it? Why not a non-GMO oul like coconut oil instead? Will the amount of canola oil cause allergies to flare up?

  • Susan

    Hi Sarah,
    I dont think it’s the Potatoes or Sweet Potatoes, she has eaten Natural Balance & Halo & done well… Has she eaten foods with probitiotics & tomato pomace before? some dogs don’t do well on certain probiotics, they can do the opposite & put their stomach/bowel bacteria out of wack or it could be 1 ingredient that isn’t agreeing with her, I’d stop feeding the Kirkland formula & take it back, get a refund just say she stop eating it…

  • A Nonnie Mess

    Also (directed to Sarah!), I’m assuming you did a very gradual switch of foods with a dog with a sensitive tummy! Some dogs need such an incredibly SLOW transition and others can switch at the drop of a hat, and it seems like with any dog with a sensitive system benefits from a transition taken so slow it’s almost comical. I think a lot of people recommend a slow switch from 5-7 days, but I’d imagine a senior girlie with a sensitive tummy would benefit from a switch that takes more like 10-14 days.
    If you did a slow switch and still had poor results ignore the above, but hopefully it will help someone else some other time =)

  • A Nonnie Mess

    Hi Sarah, one of our cats throws up anything containing rabbit. So weird; the others do well but she does not. I think it’s an individual thing and for some reasons a few pets here and there respond poorly to an otherwise good food.
    I’m assuming you spoke with your vet about her sensitive stomach as you said her check up went great (also, there’s something special about senior Boxers =)
    If her sensitive stomach issues didn’t come up, it might be worth considering calling your vet up and asking them if they had any ideas. I’ve used probiotics with mostly good results, a lot of people swear by Forti-flora.
    When I fed kibble many (MANY, I’m old) years ago I was always so irritated when brands would suddenly change things up, so the one brand my dogs did well on was suddenly different. So frustrating!
    As much as it sucks on the price increase I’d agree wholeheartedly with Anon101 when he or she states that spending money on a good food your dog does well on now saves money later at the vets, or so it seems to be in our experiences too.
    Wishing the best for your girlie!

  • anon101
  • anon101

    White potato is harder to digest than sweet potato. Some kibbles are loaded with it, can’t really tell by the labels.
    My terrier developed diarrhea after 2 weeks on Natural Balance, but he does fine on Zignature.
    They are all different.
    It’s hard to tell, Halo may just be a better quality food.
    Seniors are vulnerable to all kinds of stuff 🙁
    It may be cheaper to buy the more expensive food if it avoids vet visits in the future..
    Good luck

  • Sarah

    Sorry that wasn’t more clear. She’s been having to poo a lot. Her stool is also very soft, almost diarrhea. She very recently had a checkup and everything was great (other than the normal, senior boxer stuff). This all started after the new food was introduced.

    We changed foods because hers is expensive and just raised their prices too. The Nature’s Domain was given to us and I thought, because it’s lamb free and grain free, she would do okay on it. Obviously, I’ll be going back to her food but I wish I knew which ingredients were causing this.

  • anon101

    By go out more, do you mean to urinate? Or do you mean an increase in bowel movements?
    Because the frequent need to urinate could indicate something else…….
    Has urinary tract infection been ruled out? Lab work to rule out medical issues such as diabetes?
    Why are you switching foods, I would go back to what agreed with her and see if that solves the problem.
    Assuming a medical cause has been ruled out via vet exam.

  • Sarah

    I don’t know that potato would be the issue, simply because she had done great on both Natural Balance and Halo flavors with sweet potato.

  • anon101

    This food appears to have a lot of potato (white and sweet) some dogs do better with no potato.
    Zignature (for example)

  • Sarah

    My dog has a sensitive stomach and we have been feeding her Halo. This month, we were given a bag of grain-free Nature’s Domain Turkey and Sweet Potato. Since starting her on this new to us food, she has been needing to go outside much more often, and seems to have a much more upset stomach. After looking through the ingredients, I can’t figure out what could be having this effect on her. She is allergic to lamb and sensitive to grains. This has neither. Anybody else having this issue?

  • Bonnie Goodrich

    Seriously?

  • Lori Satchwell

    I started my dogs on Natures Domain 8 or 9 years ago. I had 5 large dogs my Bernese and Newfie each had stomach and allergy issues. I tried many different foods in all price ranges. This is the food that ended up working the best for the 2 dogs with issues, and the other 3 loved it and had no issues. I buy all varieties except salmon….Berner has fish allergies. Never had an issue with this food, dogs all do well on it, can always get it and with 5 large dogs the price is right. My Newfie who has a heart condition lived to 11 and my Bernese Mnt Dog is 10. I also have a 9year old Rottie, 2 mixed breeds both 2 years old about 50lbs each and another mixed breed 4years old/20lbs…he snuck up on me…not normally a little dog person! The fact that I have a healthy Bernese Mnt dog who has no health issues and is over 10 years is amazing to me. He came from a shelter and was in really bad shape when I got him. So I’m totally satisfied with this food.

  • Stephanie

    Wow, just wow

  • Nakita Cobalt

    My 7 dogs do great on this stuff. Tried to switch before with the same results you had. I use the Organic chicken and pea. I won’t switch again. Always an issue with my male Cane Corso when I try to switch to a different dog food, even the five star brands. He seems to react the worst but the others get loose stools as well. I raise chickens so they eat eggs daily too.

  • S Yvonne Hughes

    My daughter’s dad’s dog had to be put down after eating this. This food is horrible. Shouldn’t be out on the selves to be sold.

  • Giovanni William Galvez

    I saw the same things in both my dogs, vommitting, diarrhea, lethargic. Poor things can’t digest this food properly, will never ever buy again.

  • Susan

    Hi Micheal has your dog vet put your dog on a 21 day course of Metronidazole? the Metronidazole kills any bad bacteria in the bowel that may havetaken over & is causing diarrhea & sloppy poo’s… Take back the bag of kibble & exchange for a different batch nb & use by date ..

  • Michael

    I’ve started to notice a similar issue with my dog. She’s been tested for stomach parasites once with negative results, so I thought I should look into reviews of Nature’s Domain and here you are reporting unhappy dogs with explosive diarrhea. I’m not commenting to say that I conclusively believe it was the food, I know that stomach parasites don’t always show up with one test, only to let you know that someone else out there has noticed some odd potty behaviors during my most recent bag of Nature’s Domain.

  • Susan

    Are you for real “melted Crayola Crayons” is this what your mum has told you?

  • Mike Arthurholtz

    canola is actually melted down crayola crayons. it’s where all our broken ones end up. very high in omega-3’s tho so thats good…. ;-/

  • Sally Henson

    Feeding the Salmon & Sweet Potato which agrees with all my dogs, any recall that Diamond has had yrs ago has not been in my State. If a food doesn’t agree with your dog simply don’t use it.

  • Susan

    Hi, take the Kirkland back to shop, get a refund or contact the makers, send them a copy of your vet bill & see if you can be reimburse….
    Where do you store your dry kibble???
    Before the kibble leaves the warehouse batches are tested then it all depends on how the dry kibble is transported, where it’s stored at warehouse etc this can cause the kibble to go off…. I always make sure where I buy my pet food from has A/C & I store the kibble in air tight containers in a dry cool spot in my house…..
    As soon as you open a bag of kibble the air/oxygen gets to the kibble, they say you have around 14 days then the oils start to go rancid, I never buy any kibbles that have salmon oil or fish oil they go off the quickest….I use my bag of kibble within 1 month of opening it…..

  • Shawn Akers

    I have been feeding our dogs Natures Domain for over 4 years. All of a sudden our dogs got explosive diarrhea and projectile vomiting. Or oldest dog wouldn’t walk around with his tail up anymore. Took them to the vet and nothing was wrong with them. Started them on a chicken and rice diet. That helped. Everything was fine. Slowly started to put their natures domaine dog food back into their diet…they became lathargic and having explosive diarrhea again. Thought maybe I introduced the dog food back in too soon. Back to chicken and rice for 4 more days. They were ok again. Back to adding dog food. Diarrhea. So bad they were having accidents in the house. The poor things have lost so much weight I can see their hip bones thought their fur. I read some bad reviews on Natures Domain dog food. Decided to try a different brand. After 2 days they are back to to normal. I believe this food was poisoning my dogs. Stay away.

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  • Melinda McLaren

    Canola oil grows in fields. Not on a tree. I live in Alberta and there are fields and fields of it.

  • Christina Lyons

    You are right on the name. And Canada and 1970 But so very wrong about the nut and tree. A simple Google of canola oil will show you. This is even on a website specifically about canola. I’m guessing you’ve never seen a canola field http://canolaeatwell.com/what-is-canola-oil/

  • soundbonz

    OMG!! Canola oil is from a tree developed in Canada – hence the name CANola – in the 1970s. I was incorrect about it being a GMO tree – it’s actually old fashioned cross breeding – but I am correct that the tree produces a nut that produces the oil.

  • Christina Lyons

    Just FYI canola oil is from a plant like rapeseed. The seeds are pressed to make canola oil. There’s no tree or nuts.

  • Kirsten Dawes

    This is the only food my 6 dogs will agree on. They eat the turkey and sweet potato version. I’ve been feeding it to my dogs for 4 years now. Every once in awhile I try to make a switch to a “5 star” food but there is always instant diarrhea and sometimes vomiting. Last time I tried Taste Of The Wild with a very gradual switch and my 2 sensitive german shepherds and bull terrier (who has a stomach made of steel usually) all had projectile diarrhea. As soon as I made the switch back to this, and quite suddenly, everyone had firm poops again and are happy and healthy dogs. My 3 pugs are 11 years old, and they’ve been on this the longest (4 years) and they have been thankfully completely healthy and their yearly blood work always come back perfect. I work at an animal hospital and to see dogs my dogs age with not a single problem on their bloodwork is rare. Never tried the beef or chicken because I’m afraid my dogs whose breeds are allergy prone will get allergies. Occasionally I will get a bag of the salmon which they do good on too. Pretty much stuck feeding this forever.

  • Elizabeth Givens

    Are you kidding? Have you ever seen a dog ingest antifreeze? People count on “instincts” way too much.