We’ve rated Diamond on ingredient quality, species-appropriateness, recalls, and more. Read our Diamond cat food review to learn how this brand stacks up.
The Cats.com Standard—Rating Diamond on What Matters
We’ve rated the brand on six key criteria for quality. Here’s how it rates in each of these six crucial areas.
- Species-Appropriateness – 6/10
- Ingredient Quality – 5/10
- Product Variety – 7/10
- Price – 7/10
- Customer Experience – 7/10
- Recall History – 6/10
Overall Score: 6.3/10
In total, we give Diamond cat food a 38 out of 60 rating or a C+ grade.
Diamond Pet Foods is a family-owned and privately held business that believes “every pet deserves the very best.” The company was founded in 1970 in an effort to create a high-quality pet food that the average pet owner can afford.
Today, Diamond has become one of the largest and fastest growing manufacturers in the pet food industry, sold in over 100 countries around the world.
Sourcing and Manufacturing
This brand claims to use only high-quality ingredients sourced from trusted local and global suppliers. Every formula is made in the USA in company-owned facilities. Though Diamond Pet Foods is based in Meta, Missouri, they have production plants in South Carolina, California, and Arkansas.
Not only does Diamond manufacture their own products, but they use state-of-the-art technology and manufacturing processes. Every facility undergoes yearly audits, and every batch of food is put through rigorous testing for quality and safety.
As one of the largest manufacturers of pet food, it’s not surprising that Diamond has had a number of recalls over the years.
Here’s a quick history:
- March 2013 – Diamond Naturals cat food was recalled due to low levels of thiamine.
- April & May 2012 – Several Diamond and Diamond Naturals products (as well as other Diamond Pet Foods brands) were recalled due to positive tests for salmonella.
- December 2005 – Diamond Maintenance and Diamond Professional cat food was recalled from the brand’s South Carolina facility.
What Kinds Of Cat Food Does Diamond Offer?
Diamond offers a variety of cat and dog dry food and wet food products for cats in three product lines: Diamond, Diamond Care, and Diamond Naturals.
The original Diamond line of products includes a single Maintenance formula while Diamond Naturals includes several dry and wet food formulas. This product line includes dry food recipes for kittens, indoor cats, and active cats as well as canned food for adult cats and kittens.
The Diamond Care line of products features two recipes formulated by veterinarians to support your cat’s urinary health and weight.
What Do Customers Think of Diamond Cat Food?
Generally speaking, customers seem to like Diamond cat food. Many customers comment that the products are appealing even to picky cats, though Diamond has its fair share of negative reviews. Negative comments range from cats vomiting after eating the food to increased litter box odor.
Let’s take a look at a few customer reviews from some of the most popular recipes from Diamond.
“I have used Diamond brand for both dogs and cats for years and my animals are shiny, healthy and happy. They love the taste. When you open up a bag – unlike cheap food it smells meaty. Also, her poops are less smelly and less in quantity because her body actually absorbs the nutrients.” – Maxine reviewing Diamond Naturals Active Chicken Meal & Rice Formula
“First time I tried this brand, my kitties are eating it up. I have several feral cats out back and they can’t stop eating it. Very happy with purchase, good amount for low price.” – Nancy reviewing Diamond Maintenance Formula Dry Cat Food
“Yes, they’re eating every bite. They’re also drinking twice as much and filling the litter box 4xs as fast – the smell is unreal awful. You get what you pay for!” – Persians reviewing Diamond Maintenance Formula Dry Cat Food
“Not saying it’s a bad food, but my dogs ended up with allergies after eating this food for a while. Raw, red, itchy tummies and super dry skin.” – TicTac16 reviewing Diamond Naturals Active Chicken Meal & Rice Formula
What Did Our Test Cats Think?
Overall, our test cats had no qualms about eating Diamond cat food. They were most interested in the Diamond Naturals wet food formula, though they found the dry foods appealing as well.
The primary issue in testing this brand is that one of our test cats is allergic to chicken, so she wasn’t able to eat any of the recipes Diamond had to offer.
Diamond Cat Food – Top 3 Recipes Reviewed
|Product Name||Food Type||Main Protein Source||Calories||Price||Our Grade|
|Diamond Naturals Active Chicken Meal & Rice Formula Dry Cat Food||Dry||Chicken||400 kcal/cup||$2.39 per lb||B-|
|Diamond Maintenance Formula Dry Cat Food||Dry||Chicken||350 kcal/cup||$1.45 per lb||D|
|Diamond Naturals Whitefish Dinner Adult & Kitten Canned Cat Food||Wet||Whitefish||172 kcal/can (5.5 ounce)||$0.18 per oz||B-|
This Maintenance formula dry food is problematic from the very first ingredient – an animal by-product. You’ll also find several corn- and wheat-based ingredients which are primarily used as fillers in pet food. They don’t offer much in the way of nutrition for your cat.
Compared to the previous recipe, this formula is also much higher in carbohydrates, estimated around 35%. It does contain probiotics but, again, we’re not sure how well they survive processing.
Chicken By-Product Meal, Whole Grain Ground Corn, Wheat Flour, Chicken Fat (Preserved With Mixed Tocopherols), Corn Gluten Meal, Ground White Rice, Dried Beet Pulp, Natural Chicken Flavor, Flaxseed, Fish Meal, Sodium Bisulfate, Potassium Chloride, Choline Chloride, Dl-Methionine, Taurine, Dried Lactobacillus Plantarum Fermentation Product, Dried Bacillus Subtilis Fermentation Product, Dried Lactobacillus Acidophilus Fermentation Product, Dried Enterococcus Faecium Fermentation Product, Dried Bifidobacterium Animalis Fermentation Product, Zinc Proteinate, Vitamin E Supplement, Niacin, Manganese Proteinate, Copper Proteinate, Zinc Sulfate, Manganese Sulfate, Copper Sulfate, Thiamine Mononitrate, Vitamin A Supplement, Biotin, Potassium Iodide, Calcium Pantothenate, Riboflavin, Pyridoxine Hydrochloride (Vitamin B6), Vitamin B12 Supplement, Manganous Oxide, Sodium Selenite, Vitamin D Supplement, Folic Acid. Contains A Source Of Live (Viable), Naturally Occurring Microorganisms.
|Ingredients We Liked||Ingredients We Didn’t Like||Common Allergens|
|Chicken Fat||Chicken By-Product Meal
Whole Grain Ground Corn
Corn Gluten Meal
Ground White Rice
Dry Matter Basis
Caloric Weight Basis
- Animal-based protein as the first ingredient
- Supplemented with probiotics for healthy digestion
- Doesn’t contain any artificial additives
- Contains corn and wheat ingredients
- Contains by-products and some non-specific animal protein
How Much Does Diamond Cat Food Cost?
Diamond is a fairly affordable brand of cat food, depending which product line you go with. The Diamond Naturals line is more expensive than the original Diamond line of products, though both are priced under $0.10 per ounce for dry food. Diamond Naturals Wet food is about $0.18 per ounce.
Overall, Is Diamond Cat Food a Good Choice?
For the most part, Diamond cat food is a mediocre brand. Some of their formulas are better than others in terms of quality ingredients, though all of their dry foods are pretty high in carbs.
If you’re looking for an affordable brand of cat food, our favorite of the three recipes we reviewed is the Diamond Naturals wet food. It is rich in animal protein and moisture but very low in carbohydrates.
Where Is Diamond Cat Food Sold?
You can find Diamond cat food in a variety of local and independent pet stores as well as from online retailers. Online, your best bet is to shop on Amazon or Chewy, though you can also purchase Diamond pet food from Petco and PetFlow.