Diamond Naturals Dog Food receives the Advisor’s second-highest tier rating of 4.5 stars.
The Diamond Naturals product line includes the 13 dry dog foods listed below.
Each recipe includes its related AAFCO nutrient profile when available on the product’s official webpage: Growth, Maintenance, All Life Stages, Supplemental or Unspecified.
Use the links to compare price and package size information at an online retailer.
- Diamond Naturals Senior Dog [M]
- Diamond Naturals Light Adult Dog (2.5 stars) [M]
- Diamond Naturals Small Breed Adult Lamb and Rice [M]
- Diamond Naturals Extreme Athlete (5 stars) [M]
- Diamond Naturals Adult Beef Meal and Rice [M]
- Diamond Naturals Small Breed Puppy (5 stars) [A]
- Diamond Naturals All Life Stages Chicken and Rice (5 stars) [A]
- Diamond Naturals Large Breed Puppy Lamb and Rice (5 stars) [A]
- Diamond Naturals Adult Lamb Meal and Rice (4 stars) [M]
- Diamond Naturals Small Breed Adult Chicken and Rice (5 stars) [M]
- Diamond Naturals Large Breed Adult Chicken and Rice (4 stars) [M]
- Diamond Naturals Large Breed Adult Lamb Meal and Rice (3.5 stars) [M]
- Diamond Naturals All Life Stages Skin and Coat Grain Free [A]
Diamond Naturals Adult Beef Meal and Rice was selected to represent the other products in the line for this review.
Diamond Naturals Adult Beef Meal and Rice
Dry Dog Food
Estimated Dry Matter Nutrient Content
Ingredients: Beef meal, grain sorghum, ground white rice, dried yeast, egg product, rice bran, cracked pearled barley, chicken fat (preserved with mixed tocopherols), dried beet pulp, natural flavor, flaxseed, potassium chloride, salt, dl-methionine, choline chloride, taurine, dried chicory root, glucosamine hydrochloride, kale, chia seed, pumpkin, blueberries, oranges, quinoa, dried kelp, coconut, spinach, carrots, papaya, Yucca schidigera extract, 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, beta carotene, chondroitin sulfate, iron proteinate, zinc proteinate, copper proteinate, ferrous sulfate, zinc sulfate, copper sulfate, potassium iodide, thiamine mononitrate, manganese proteinate, manganous oxide, ascorbic acid, vitamin A supplement, biotin, niacin, calcium pantothenate, manganese sulfate, 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|
|Dry Matter Basis||28%||17%||48%|
|Calorie Weighted Basis||24%||35%||41%|
The first ingredient in this dog food is beef meal. Beef meal is considered a meat concentrate and contains nearly 300% more protein than fresh beef.
The second 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 third 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 dried yeast, which can be a controversial item. Dried yeast contains about 45% protein and is rich in other healthy nutrients.
Fans believe yeast repels fleas and supports the immune system.
Critics argue yeast ingredients can be linked to allergies. This may be true, but (like all allergies) only if your particular dog is allergic to the yeast itself.
What’s more, a vocal minority insists yeast can increase the risk of developing the life-threatening condition known as bloat. However, this is something we’ve not been able to scientifically verify.
In any case, unless your dog is specifically allergic to it, we feel yeast should be considered a nutritious addition.
The fifth ingredient is egg product, an unspecified (wet or dry?) form of shell-free eggs. Quality can vary significantly. Lower grade egg product can even come from commercial hatcheries — from eggs that have failed to hatch.
In any case, eggs are easy to digest and have an exceptionally high biological value.
The sixth 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 next ingredient is barley. Barley is a starchy carbohydrate supplying fiber and other healthy nutrients. However, aside from its energy content, this cereal grain is of only modest nutritional value to a dog.
The eighth ingredient is chicken fat. This item 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 ninth 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.
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 Diamond Naturals product.
With 6 notable exceptions…
First, we find 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.
Next, we note the inclusion of chia seed, an edible seed nutritionally similar to flax or sesame. Provided they’re first ground into a meal, chia seeds are rich in both omega-3 fatty acids as well as dietary fiber and contain about 17% protein.
In addition, we find quinoa in this recipe. Quinoa (pronounced keen-wah) is not a true cereal grain but a plant prized for its gluten-free seeds.
Compared to most other grain-type ingredients, it is high in protein (about 12-18%), dietary fiber and other healthy nutrients.
Next, 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.
We also note the use of taurine, an important amino acid associated with the healthy function of heart muscle. Although taurine is not typically considered essential in canines, some dogs have been shown to be deficient in this critical nutrient.
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.
Diamond Naturals Dog Food Review
Based on its ingredients alone, Diamond Naturals Dog Food looks like an above-average dry product.
As a group, the brand features an average protein content of 28% and a mean fat level of 17%. Together, these figures suggest a carbohydrate content of 47% for the overall product line.
And a fat-to-protein ratio of about 59%.
Which means this Diamond Naturals product line contains…
Above-average protein. Near-average fat. And near-average carbs when compared to other dry dog foods.
Even when you consider the protein-boosting effect of the dried yeast, quinoa, flax and chia seeds, this looks like the profile of a kibble containing a notable amount of meat.
Diamond Naturals contains both grain-inclusive and grain-free dry dog foods using a notable amount of named meat meals as its dominant source of animal protein, thus receiving 4.5 stars.
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Diamond Dog Food
The following list (if present) includes all dog food recalls since 2009 directly related to Diamond Pet Foods. If there are no recalls listed in this section, we have not yet reported any events.
- Diamond Issues Yet Another Dog Food Recall (5/18/2012)
- Diamond Dog Food Recall Widens (4/30/2012)
- Diamond Dog Food Recall (4/6/2012)
A Final Word
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Important FDA Alert
The FDA is investigating a potential link between diet and heart disease in dogs. Click here for details.
Notes and Updates
06/20/2020 Last Update