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Diamond Dog Food Review (Dry)

Diamond Dog Food Brand Review

Is Diamond a good dog food?

In this review… The Dog Food Advisor takes a critical look at Diamond Dog Food… and its five most important sub-brands.

We’ll also reveal…

  1. Is Diamond Dog Food made in the United States?
  2. Has Diamond been recalled?
  3. Which flavors and recipes get our highest ratings?

But first…

Which Diamond Sub-Brand Is Right for You?

Here are Diamond’s five most popular sub-brands. In the following section, we’ll show you what makes each different. So you can choose the food that’s best for your dog.

Diamond Dog Food Review

Diamond Dog Food


This is Diamond’s economy kibble. It’s a “no-frills” dry dog food at a very low price.

  • Grain-inclusive (corn, wheat, rice)
  • Notable meat content
  • 6 recipes (ratings vary)

View Recipe Ratings

Diamond Naturals Dog Food Review

Diamond Naturals


Diamond Naturals is a premium dry dog food. It contains more meat, better ingredients… and offers a significant upgrade over the standard Diamond product (above).

  • Above-average protein. Moderate fat.
  • Chelated minerals for superior nutrition
  • 13 recipes (ratings vary)

View Recipe Ratings

Diamond Naturals Grain Free Dry Dog Food

Diamond Naturals Grain-Free


This sub-brand includes the grain-free version of Diamond Naturals (above). The protein in this recipe appears to be derived from both plant and animal sources.

  • Beef, chicken or whitefish protein
  • Contains fresh, beta-carotene-rich sweet potato. No corn, wheat or barley
  • 3 recipes (ratings vary)

View Recipe Ratings

Diamond Care Dog Food Review Sensitive Stomach Formula

Diamond Care


Diamond Care includes 4 dry recipes… each designed by vets for dogs with specific health issues.

  • 100% grain-free formula. No corn, wheat or rice.
  • Omega-3 and omega-6 fats for healthy skin and coat
  • 4 recipes (ratings vary)

View Recipe Ratings

Diamond Naturals Chicken Wet Dog Food

Diamond Naturals Wet


Diamond Original canned formula is for those who prefer a wet food that’s made with grain (rice).

  • Complete nutrition for puppies or adults
  • Can be fed as a balanced meal or as a tasty topper for dry kibble
  • 3 recipes (ratings vary)

View Recipe Ratings

Who Makes Diamond Dog Food?

Diamond is made by family-owned Diamond Pet Foods, of Meta, Missouri. All dry foods are produced at the company’s own facilities in South Carolina, California, Arkansas and Missouri. Wet recipes are made by a private-label cannery in the United States.

Diamond also makes top-rated Taste of the Wild and budget-friendly Costco Kirkland dog foods.

Has Diamond Dog Food Been Recalled?

Here’s a list of all recalls since 2009 related to Diamond dog products. Updates are added as soon as new recalls are posted. All 3 events were linked to the same recall.

You can view a complete list of all dog food recalls here.

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Get lifesaving dog food recall alerts sent to you by email. Subscribe to The Advisor’s emergency recall notification list.

Is Diamond a Good Dog Food?

Diamond Dog Food Review


Diamond Dog Food receives the Advisor’s second-highest tier rating of 4.5 stars.

Which Diamond Recipes Get
Our Best Ratings?

The Diamond Dog Food product line includes the 6 dry recipes listed below.

Each recipe includes its AAFCO nutrient profile when available… Growth (puppy), Maintenance (adult), All Life Stages, Supplemental or Unspecified.

Product Rating AAFCO
Diamond Maintenance 3.5 M
Diamond Original 2 M
Diamond Hi-Energy 2.5 M
Diamond Performance 4.5 A
Diamond Premium Adult 4.5 A
Diamond Puppy Formula 4.5 A

Recipe and Label Analysis

Diamond Maintenance was selected to represent the other products in the line for detailed recipe and nutrient analysis.

Label and nutrient data below are calculated using dry matter basis.

Diamond Maintenance

Dry Dog Food

Estimated Dry Matter Nutrient Content

Protein = 24% | Fat = 13% | Carbs = 54%

Ingredients: Chicken by-product meal, wheat flour, whole grain ground corn, rice bran, dried beet pulp, chicken fat (preserved with mixed tocopherols), grain sorghum, ground white rice, fish meal, egg product, natural chicken flavor, flaxseed, potassium chloride, salt, choline chloride, 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, vitamin E supplement, iron proteinate, zinc proteinate, copper proteinate, ferrous sulfate, zinc sulfate, manganese sulfate, copper sulfate, potassium iodide, thiamine mononitrate, manganese proteinate, ascorbic acid, vitamin A supplement, biotin, niacin, calcium pantothenate, sodium selenite, pyridoxine hydrochloride, vitamin B12 supplement, riboflavin, vitamin D3 supplement, folic acid

Fiber (estimated dry matter content) = 3.9%

Red denotes controversial item

Estimated Nutrient Content
Guaranteed Analysis22%12%NA
Dry Matter Basis24%13%54%
Calorie Weighted Basis22%29%49%
Protein = 22% | Fat = 29% | Carbs = 49%

Ingredient Analysis

The first ingredient in this dog food is chicken by-product meal, a dry rendered product of slaughterhouse waste. It’s made from what’s left of a slaughtered chicken after all the choice cuts have been removed.

In addition to organs, this item can also include feet, beaks, undeveloped eggs and almost anything other than prime skeletal muscle.

On the brighter side, by-product meals are meat concentrates and contain nearly 300% more protein than fresh chicken.

The quality of this ingredient can vary, depending on the caliber of the raw materials obtained by the manufacturer.

The second ingredient is wheat flour, a highly-refined product of wheat milling. Like corn, wheat is an inexpensive and controversial cereal grain of only modest nutritional value to a dog.

For this reason, we do not consider wheat a preferred component in any dog food.

The third ingredient is corn. Corn is another cereal grain and subject to the same issues as wheat (previously discussed).

The next ingredient is rice bran, a healthy by-product of milling whole grain rice. The bran is the fiber-rich outer layer of the grain containing starch, protein, fat as well as vitamins and minerals.

The fifth ingredient is beet pulp. Beet pulp is a controversial ingredient, a high fiber by-product of sugar beet processing.

Some denounce beet pulp as an inexpensive filler while others cite its outstanding intestinal health and blood sugar benefits.

We only call your attention here to the controversy and believe the inclusion of beet pulp in reasonable amounts in most dog foods is entirely acceptable.

The sixth item on the ingredient list is chicken fat. Chicken fat is obtained from rendering chicken, a process similar to making soup in which the fat itself is skimmed from the surface of the liquid.

Chicken fat is high in linoleic acid, an omega-6 fatty acid essential for life. Although it doesn’t sound very appetizing, chicken fat is actually a quality ingredient.

The seventh ingredient is sorghum. Sorghum (milo) is a starchy cereal grain with a nutrient profile similar to corn.

Since it is gluten-free and boasts a smoother blood sugar behavior than other grains, sorghum may be considered an acceptable non-meat ingredient.

The eighth ingredient is ground white rice, another name for rice flour. Ground rice is made from either white or brown rice and is considered a gluten-free substitute for wheat flour.

The next ingredient is fish meal, another protein-rich meat concentrate.

Fish meal is typically obtained from the “clean, dried, ground tissue of undecomposed whole fish and fish cuttings” of commercial fish operations.1

Unfortunately, this particular item is anonymous. Because various fish contain different types of fats, we would have preferred to have known the source species.

Other Notable Ingredients

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 4 notable exceptions

First, flaxseed is 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.

Next, we note the inclusion of dried fermentation products in this recipe. Fermentation products are typically added to provide enzymes to aid the animal with digestion.

In addition, this recipe includes sodium selenite, a controversial form of the mineral selenium. Sodium selenite appears to be nutritionally inferior to the more natural source of selenium found in selenium yeast.

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.

Nutrient Analysis

Based on its ingredients alone, Diamond looks like an average dry dog food.

The dashboard displays a dry matter protein reading of 24%, a fat level of 13% and estimated carbohydrates of about 54%.

As a group, the brand features an average protein content of 29% and a mean fat level of 19%. Together, these figures suggest a carbohydrate content of 44% for the overall product line.

And a fat-to-protein ratio of about 65%.

Above-average protein. Above-average fat. And below-average carbs when compared to other dry dog foods.

Even when you consider the protein-boosting effect of the flaxseed, this looks like the profile of a kibble containing a notable amount of meat.

Our Rating of Diamond Dog Food

The Dog Food Advisor finds Diamond to be an above-average grain-inclusive kibble. Each recipe uses at least a moderate amount of named meat meal as its dominant source of animal protein… thus earning the brand 4.5 stars. The Diamond Naturals formula gets 4.5 stars. Diamond wet earns 5 stars. Highly recommended.

What Do Others Say About Diamond?

As of the time of this update…

Chewy customers rate Diamond Naturals 4.5 out of 5 stars… and 93% say they would recommend it to others.

Here’s an actual user review

Sample buyer review… “I am a former pet store employee so I know a little bit about pet nutrition. I was wanting to transition my dogs into a new food that was still a good quality for a lower price. Diamond naturals does both. It has no bad ingredients and had fresh fruit and vegetables which I love. My two dogs seem to really be enjoying their new food!”

Read more buyer reviews at

What Are Diamond’s Best Recipes?

Based on a weighted average of popularity and ratings, here are our 5 most recommended Diamond flavors and recipes.

Is Diamond dog food good for itchy skin?

Diamond Care Sensitive Skin Formula is a limited ingredient grain-free diet specifically designed for dogs with food-related skin issues. It’s made with peas and hydrolyzed salmon protein to help prevent adverse skin reactions. For more options, be sure to visit The Advisor’s Best Dog Foods for Allergies page.

Is Diamond a good food for older dogs?

Diamond recipes that contain ample amounts of protein and below-average fat and calorie content can be safe for seniors. But they must meet AAFCO nutrient guidelines for adult maintenance. Diamond Naturals Senior Formula can be a healthy option for older pets. View The Advisor’s best senior dog foods here.

Is Diamond a good dog food for puppies?

Diamond Naturals offers 2 nutritionally complete and balanced dry puppy foods. One is designed just for large breed puppies… and the other is made for smaller breeds. Each is made with grain and rated 5 stars on this website. Visit The Advisor’s best puppy foods page here.

Is Diamond considered a healthy dog food?

Every Diamond recipe meets 100% of the nutrient requirements published by the Association of American Feed Control Officials. Each is considered complete and balanced for the specific life stage printed on the package… based on nutrient standards established by the National Research Council of the National Academies of Science.

More Diamond Reviews

Here are more Diamond dog food reviews published by The Dog Food Advisor on this website.

A Final Word

The Dog Food Advisor is privately owned. We do not accept money, gifts, samples or other incentives in exchange for special consideration in preparing our reviews.

However, we do receive a referral fee from online retailers (like Chewy or Amazon) and from sellers of perishable pet food when readers click over to their websites from ours. This helps cover the cost of operation of our free blog. Thanks for your support.

For more information, please visit our Disclaimer and Disclosure page.

Important FDA Alert

The FDA is investigating a potential link between diet and heart disease in dogs. Click here for details.


  1. Association of American Feed Control Officials

03/21/2022 Last Update

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