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Ol’ Roy Skin and Coat Formula Dog Food receives the Advisor’s lowest tier rating of 1.5 stars.
The Ol’ Roy Skin and Coat product line includes one dry dog food, a recipe claimed to meet AAFCO nutrient profiles for all life stages.
Ol' Roy Skin and Coat Formula
Dry Dog Food
Estimated Dry Matter Nutrient Content
Ingredients: Lamb meal, brewers rice, soybean meal, ground yellow corn, ground wheat, wheat flour, animal fat preserved with mixed-tocopherols (form of vitamin E), corn germ meal, corn gluten meal, animal digest, calcium carbonate, salt, potassium chloride, l-lysine monohydrochloride, calcium phosphate, choline chloride, added color (yellow 5, red 40, blue 2), vitamin E supplement, zinc sulfate, ferrous sulfate, manganese sulfate, niacin, vitamin A supplement, brewers dried yeast, copper sulfate, calcium pantothenate, garlic oil, pyridoxine hydrochloride, vitamin B12 supplement, thiamine mononitrate, vitamin D3 supplement, riboflavin, supplement, calcium iodate, menadione sodium bisulfite complex (source of vitamin K activity), folic acid, biotin, sodium selenite
Fiber (estimated dry matter content) = 4.5%
Red denotes controversial item
|Estimated Nutrient Content|
|Dry Matter Basis||26%||14%||52%|
|Calorie Weighted Basis||23%||30%||47%|
The first ingredient in this dog food lists lamb meal. Lamb meal is considered a meat concentrate and contains nearly 300% more protein than fresh lamb.
The second ingredient includes brewers rice. Brewers rice is a cereal grain by-product consisting of the small fragments left over after milling whole rice. Aside from the caloric energy it contains, this item is of only modest nutritional value to a dog.
The third ingredient is soybean meal. Soybean meal is relatively useful by-product — what remains of soybeans after all the oil has been removed.
Although soybean meal contains 48% protein, this ingredient would be expected to have a lower biological value than meat.
And less costly plant-based products like this can notably boost the total protein reported on the label — a factor that must be considered when judging the actual meat content of this dog food.
The fourth item is corn. Corn is an inexpensive and controversial cereal grain. And aside from its energy content, this grain is of only modest nutritional value to a dog.
For this reason, we do not consider corn a preferred component in any dog food.
The fifth ingredient is wheat. Wheat is another cereal grain and subject to the same issues as corn (previously discussed).
The sixth 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 seventh ingredient is animal fat. Animal fat is a generic by-product of rendering, the same high-temperature process used to make meat meals.
Since there’s no mention of a specific animal, this item could come from almost anywhere: roadkill, spoiled supermarket meat, dead, diseased or dying cattle — even euthanized livestock.
For this reason, we do not consider generic animal fat a quality ingredient.
The eighth item is corn germ meal, a meal made from ground corn germ after much of the oil has been removed. Corn germ meal is a protein-rich by-product left over after milling corn meal, hominy grits and other corn products.
The ninth ingredient is corn gluten meal. Gluten is the rubbery residue remaining once corn has had most of its starchy carbohydrate washed out of it.
Compared to meat, glutens are inferior grain-based proteins lower in some of the essential amino acids dogs need for life.
This inexpensive plant-based ingredient can significantly boost the total protein reported on the label — a factor that must be considered when judging the actual meat content of this dog food.
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 six notable exceptions…
First, we find animal digest, a chemically hydrolyzed mixture of animal by-products that is usually sprayed onto the surface of a dry kibble to improve its taste.
Next, we’re always disappointed to find artificial coloring in any pet food. That’s because coloring is used to make the product more appealing to humans — not your dog. After all, do you really think your dog cares what color his kibble is?
In addition, brewers yeast can be a controversial item. Although it’s a by-product of the beer making process, this ingredient is rich in minerals and 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.
In addition, a vocal minority insists yeast can increase the risk of developing the life-threatening condition known as bloat. However, this is a claim we’ve not been able to scientifically verify.
In any case, unless your dog is specifically allergic to it, yeast can still be considered a nutritious additive.
What’s more noteworthy here is that brewers yeast contains about 48% protein, a factor that must be considered when judging the actual meat content of this dog food.
Next, garlic oil may be a controversial item. We say “may be” here because we are not certain of the oil’s chemical relationship to raw garlic itself.
Although most experts favor the ingredient for its numerous health benefits, garlic (in rare cases) has been linked to Heinz body anemia in dogs.2
However, the limited professional literature we surveyed provided no definitive warnings regarding the use of garlic — especially when used in small amounts (as it likely is here).
In addition, this recipe also contains menadione, a controversial form of vitamin K linked to liver toxicity, allergies and the abnormal break-down of red blood cells.
Since vitamin K isn’t required by AAFCO in either of its dog food nutrient profiles, we question the use of this substance in any canine formulation.
And lastly, 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.
Ol’ Roy Skin and Coat Dog Food
The Bottom Line
Judging by its ingredients alone, Ol’ Roy Skin and Coat Dog Food looks like a below-average kibble.
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.
And a fat-to-protein ratio of about 52%.
Below-average protein. Below-average fat. And above-average carbs when compared to a typical dry food.
When you consider the protein-boosting effects of the soybean meal, corn germ and corn gluten meals, this looks like the profile of a kibble containing only a modest amount of meat.
Ol’ Roy Skin and Coat Formula Dog Food is a plant-based kibble using a modest amount of lamb meal as its main source of animal protein, thus earning the brand 1.5 stars.
Please note certain recipes within the same product line may have been given higher or lower ratings based upon our estimate of their total meat content.
Important FDA Alert
The FDA is investigating a potential link between diet and heart disease in dogs. Click here for details.
A Final Word
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Notes and Updates
08/23/2014 Last Update