Purina One SmartBlend Dog Food receives the Advisor’s mid-tier rating of 3.5 stars.
The Purina One SmartBlend product line includes the 10 dry recipes listed below.
Each formula 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 check prices and package sizes at an online retailer.
- Purina One SmartBlend Large Breed Adult [M]
- Purina One SmartBlend Large Breed Puppy (3 stars) [A]
- Purina One SmartBlend Healthy Puppy Formula [G]
- Purina One SmartBlend Lamb and Rice Formula [M]
- Purina One SmartBlend Small Breed Adult [M]
- Purina One SmartBlend Sensitive Systems [M]
- Purina One SmartBlend Healthy Weight Formula (2.5 stars) [M]
- Purina One SmartBlend Vibrant Maturity Adult 7+ (3 stars) [M]
- Purina One SmartBlend Chicken and Rice Formula (3 stars) [M]
- Purina One SmartBlend Small Bites Beef and Rice Formula (3 stars) [M]
Purina One SmartBlend Large Breed Adult was selected to represent the other products in the line for this review.
Purina One SmartBlend Large Breed Adult
Dry Dog Food
Estimated Dry Matter Nutrient Content
Ingredients: Chicken, rice flour, chicken by-product meal (source of glucosamine), corn gluten meal, whole grain wheat, soybean meal, whole grain corn, beef fat naturally preserved with mixed-tocopherols, pea fiber, oat meal, glycerin, liver flavor, mono and dicalcium phosphate, salt, calcium carbonate, caramel color, potassium citrate, dried carrots, dried peas, vitamins [vitamin E supplement, niacin (vitamin B3), vitamin A supplement, calcium pantothenate (vitamin B5), thiamine mononitrate (vitamin B1), vitamin B12 supplement, riboflavin supplement (vitamin B2), pyridoxine hydrochloride (vitamin B6), folic acid (vitamin B9), menadione sodium bisulfite complex (vitamin K), vitamin D3 supplement, biotin (vitamin B7), ], potassium chloride, minerals [zinc sulfate, ferrous sulfate, manganese sulfate, copper sulfate, calcium iodate, sodium selenite], choline chloride, l-ascorbyl-2-polyphosphate (vitamin C), l-lysine monohydrochloride, sulfur
Fiber (estimated dry matter content) = 5.1%
Red denotes controversial item
|Estimated Nutrient Content|
|Dry Matter Basis||30%||14%||49%|
|Calorie Weighted Basis||27%||30%||44%|
The first ingredient in this dog food is chicken. Although it is a quality item, raw chicken contains up to 73% water. After cooking, most of that moisture is lost, reducing the meat content to just a fraction of its original weight.
After processing, this item would probably account for a smaller part of the total content of the finished product.
The second ingredient includes rice flour. Rice flour is made from either white or brown rice and is considered a gluten-free substitute for wheat flour.
The next 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 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 fourth ingredient includes corn gluten meal. Gluten is the rubbery residue remaining once corn has had most of its starchy carbohydrate washed out of it.
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 next ingredient is wheat. Like corn, wheat 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 wheat a preferred component in any dog food.
The sixth 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.
The seventh ingredient lists corn. Corn is another cereal grain and subject to the same issues as wheat (previously discussed).
The next item listed is beef fat. Beef fat (or tallow) is most likely obtained from rendering, a process similar to making soup in which the fat itself is skimmed from the surface of the liquid.
Although it may not sound very appetizing, beef fat is actually a quality ingredient.
The ninth ingredient includes pea fiber, a mixture of both soluble and insoluble dietary fiber derived from pea hulls. Aside from the usual benefits of fiber, this agricultural by-product provides no other 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 5 notable exceptions…
First, caramel is a natural coloring agent made by caramelizing carbohydrates. It’s used by pet food manufacturers to impart a golden brown tint to the finished product.
However, the concentrated version of this ingredient commonly known as caramel coloring has been more recently considered controversial and found to cause cancer in laboratory animals.1
In any case, even though caramel is considered safe by the FDA, we’re always disappointed to find any added coloring in a 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 food is?
Next, we note the use of dried peas. Dried peas are a good source of carbohydrates. Plus they’re naturally rich in dietary fiber.
However, dried peas contain about 27% protein, a factor that must be considered when judging the meat content of this dog food.
In addition, we find no mention of probiotics, friendly bacteria applied to the surface of the kibble after processing to help with digestion.
Next, the minerals listed here do not appear to be chelated. And that can make them more difficult to absorb. Chelated minerals are usually associated with higher quality dog foods.
And lastly, this dog food 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 One SmartBlend
Dog Food Review
Based on its ingredient panel alone, Purina One SmartBlend looks like a below-average dry kibble.
As a group, the brand features an average protein content of 31% and a mean fat level of 16%. Together, these figures suggest a carbohydrate content of 45% for the overall product line.
And a fat-to-protein ratio of about 54%.
Which means this Purina product line contains…
Above-average protein. Near-average fat. And below-average carbs when compared to other dry dog foods.
When you consider the protein-boosting effect of the corn gluten and soybean meals in this recipe, and the corn and soy germ meals included in some other recipes, this looks like the profile of a kibble containing a moderate amount of meat.
Purina One SmartBlend is a grain-inclusive dry dog food using a moderate amount of named by-product meal as its dominant source of animal protein, thus earning the product line 3.5 stars.
Purina Dog Food
The following list (if present) includes all dog food recalls since 2009 directly related to Purina. If there are no recalls listed in this section, we have not yet reported any events.
- Purina Beneful and Pro Plan Dog Food Recall (3/11/2016)
- Purina One Beyond Dog Food Recall (8/30/2013)
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
03/31/2019 Last Update