Diamond canned dog food receives the Advisor’s second-highest tier rating of 4.5 stars.
The Diamond product line includes three canned dog foods, each claimed to meet AAFCO nutrient profiles for all life stages.
The following is a list of recipes available at the time of this review.
- Diamond Lamb and Rice
- Diamond Chicken and Rice
- Diamond Beef and Rice (3.5 stars)
Diamond Lamb and Rice canned dog food was selected to represent the others in the line for this review.
Diamond Lamb and Rice Formula
Canned Dog Food
Estimated Dry Matter Nutrient Content
Ingredients: Lamb, lamb broth, lamb liver, rice flour, dried egg product, fish meal, dried beet pulp, lamb meal, dicalcium phosphate, choline chloride, potassium chloride, sodium chloride, vitamin A acetate, vitamin D3 supplement, ascorbic acid, niacin supplement, calcium pantothenate, riboflavin supplement, thiamine mononitrate, pyridoxine hydrochloride, vitamin B12 supplement, biotin, folic acid, zinc sulfate, ferrous sulfate, manganese sulfate, copper sulfate, calcium iodate, and sodium selenite
Fiber (estimated dry matter content) = 6.8%
Red items indicate controversial ingredients
|Estimated Nutrient Content|
|Dry Matter Basis||41%||27%||24%|
|Calorie Weighted Basis||31%||51%||18%|
The first ingredient in this dog food is lamb. Lamb is considered “the clean flesh derived from slaughtered” lamb and associated with skeletal muscle or the muscle tissues of the tongue, diaphragm, heart or esophagus.1
Lamb is naturally rich in all ten essential amino acids required by a dog to sustain life.
The second item is lamb broth. Broths are nutritionally empty. But because they add moisture to a dog food they are a common finding in many canned products.
The third ingredient lists lamb liver. This is an organ meat sourced from a named animal and thus considered a beneficial component.
The fourth ingredient is rice flour. Rice flour is made from either white or brown rice and is considered a gluten-free substitute for wheat flour.
The fifth ingredient is dried egg product, a dehydrated 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 includes fish meal. Because it is considered a meat concentrate, fish meal contains almost 300% more protein than fresh fish itself.
Fish meal is typically obtained from the “clean, dried, ground tissue of undecomposed whole fish and fish cuttings” of commercial fish operations.2
Unfortunately, this particular item is anonymous. Because various fish contain different types of fats, we would have preferred to have known the source species.
The seventh ingredient is beet pulp which can be a controversial item, 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 eighth ingredient is lamb meal, another protein-rich meat concentrate.
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 one notable exception…
The minerals listed here do not appear to be chelated. And that can make them more difficult to absorb. Non-chelated minerals are usually associated with lower quality dog foods.
Diamond Canned Dog Food
the Bottom Line
Judging by its ingredients alone, Diamond canned dog food looks like an above-average wet product.
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.
As a group, the brand features an average protein content of 41% and a mean fat level of 27%. Together, these figures suggest a carbohydrate content of 24% for the overall product line.
And a fat-to-protein ratio of about 67%.
Near-average protein. Above-average fat. And below-average carbs as compared to a typical canned dog food.
Free of any plant-based protein boosters, this looks like the profile of a canned dog food containing a moderate amount of meat.
Diamond is a meat-based canned dog food using a moderate amount of chicken, beef or lamb as its main sources of animal protein, thus earning the brand 4.5 stars.
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.
Those looking for a nice quality kibble from the same company may wish to visit our review of Diamond Naturals dry dog food.
Diamond Dog Food
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.
- 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)
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.
The Dog Food Advisor does not test dog food products.
We rely almost entirely on the integrity of the information posted by each company on its website. As such, the accuracy of every review is directly dependent upon the quality of the test results from any specific batch of food a company chooses to publish.
Although it's our goal to ensure all the information on this website is correct, we cannot guarantee its completeness or its accuracy; nor can we commit to ensuring all the material is kept up-to-date on a daily basis.
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.
In closing, we do not accept money, gifts or samples from pet food companies in exchange for special consideration in the preparation of our reviews or ratings.
However, we do receive a fee from Chewy.com for each purchase made as a direct result of a referral from our website. This fee is a fixed dollar amount and has nothing to do with the size of an order or the brand selected for purchase.
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Notes and Updates
06/07/2015 Last Update