Purina Puppy Chow receives the Advisor’s lowest rating of 1 star.
The Purina Puppy Chow product line lists three dry dog foods, two claimed to meet AAFCO nutrient profiles for all life stages and one for growth and maintenance (Large Breed Formula).
The following is a list of recipes available at the time of this review.
- Purina Puppy Chow Healthy Morsels
- Purina Puppy Chow Large Breed Formula
- Purina Puppy Chow Complete and Balanced
Purina Puppy Chow Complete and Balanced was selected to represent the other products in the line for this review.
Purina Puppy Chow Complete and Balanced
Dry Dog Food
Estimated Dry Matter Nutrient Content
Ingredients: Whole grain corn, corn gluten meal, chicken by-product meal, animal fat preserved with mixed-tocopherols (form of vitamin E), soybean meal, egg and chicken flavor, brewers rice, barley, animal digest, calcium phosphate, fish oil, calcium carbonate, dried yeast, salt, potassium chloride, choline chloride, l-lysine monohydrochloride, zinc sulfate, vitamin E supplement, yellow 6, ferrous sulfate, dl-methionine, yellow 5, red 40, manganese sulfate, niacin, vitamin A supplement, blue 2, 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) = 5.7%
Red items when present indicate controversial ingredients
|Estimated Nutrient Content|
|Dry Matter Basis||31%||14%||48%|
|Calorie Weighted Basis||28%||30%||43%|
The first ingredient in this dog food 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 second 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.
The third ingredient 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 prime cuts have been removed.
In addition to organs (the nourishing part), this stuff can contain almost anything — feet, beaks, undeveloped eggs — anything except quality skeletal muscle (conventional meat).
On the brighter side, by-product meals are meat concentrates and contain nearly 300% more protein than fresh chicken.
In any case, although this item contains all the amino acids a dog needs, we consider chicken by-products an inexpensive, lower quality ingredient.
The fourth ingredient includes 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 pets.
For this reason, we do not consider generic animal fat a quality ingredient.
The fifth ingredient is soybean meal, a by-product of soybean oil production more commonly found in farm animal feeds.
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.
After the egg and chicken flavor, we find 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 eighth 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.
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 seven notable exceptions…
First, animal digest is a chemically hydrolyzed mixture of animal by-products that is typically sprayed onto the surface of a dry kibble to improve its taste.
Next, fish oil is naturally rich in the prized EPA and DHA type of omega-3 fatty acids. These two high quality fats boast the highest bio-availability to dogs and humans.
Depending on its level of freshness and purity, fish oil should be considered a commendable addition.
In addition, 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?
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.1
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).
Next, we find no mention of probiotics, friendly bacteria applied to the surface of the kibble after processing to help with digestion.
Also, 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.
And lastly, this food 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.
Purina Puppy Chow
The Bottom Line
Judging by its ingredients alone, Purina Puppy Chow looks like a below average dry 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 31% and a mean fat level of 13%. Together, these figures suggest a carbohydrate content of 48% for the overall product line.
And a fat-to-protein ratio of about 42%.
Above-average protein. Below-average fat. And near-average carbs when compared to a typical dry dog food.
When you consider the protein-boosting effect of the corn gluten meal and soybean meal, this looks like the profile of a kibble containing a modest amount of meat.
Purina Puppy Chow is a plant-based kibble using a modest amount of chicken by-product meal as its main source of animal protein, thus earning the brand 1 star.
Those looking for a similar wet food from the same company may wish to visit our review of Purina Healthy Morsels canned dog food.
Rice ingredients can sometimes contain arsenic. Until the US FDA establishes safe upper levels for arsenic content, pet owners may wish to limit the total amount of rice fed in a dog's daily diet.
A Final Word
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Notes and Updates
12/19/2009 Original review
07/22/2010 Review updated
05/14/2012 Review updated
11/18/2013 Review updated
11/18/2013 Last Update
- Yamato et al, Heinz Body hemolytic anemia with eccentrocytosis from ingestion of Chinese chive (Allium tuberosum) and garlic (Allium sativum) in a dog, Journal of the American Animal Hospital Association 41:68-73 (2005) ↩