Rating: 




Purina Active Senior 7+ dog food earns the Advisor’s lowest rating of one star.
We found no AAFCO nutritional adequacy statements for Purina Active Senior 7+ dog food on the company’s website.
Purina Active Senior Seven Plus
Dry Dog Food
Estimated Dry Matter Nutrient Content
Ingredients: Ground yellow corn, corn gluten meal, ground wheat, meat and bone meal, soybean hulls*, soybean meal, animal fat preserved with mixed-tocopherols (form of vitamin E), sugar, water, animal digest, propylene glycol, phosphoric acid, salt, sorbic acid (a preservative), l-lysine monohydrochloride, vitamin E supplement, calcium propionate (a preservative), potassium chloride, choline chloride, l-ascorbyl-2-polyphosphate (source of vitamin C), added color (red 40, yellow 5, blue 2), zinc sulfate, zinc proteinate, ferrous sulfate, niacin, manganese sulfate, manganese proteinate, vitamin A supplement, calcium carbonate, vitamin B12 supplement, calcium pantothenate, copper sulfate, copper proteinate, thiamine mononitrate, garlic oil, pyridoxine hydrochloride, riboflavin supplement, vitamin D3 supplement, menadione sodium bisulfite complex (source of vitamin K activity), calcium iodate, folic acid, biotin, sodium selenite
Fiber (estimated dry matter content) = 8.1%
Red items when present indicate controversial ingredients
The first ingredient in this dog food is corn. Now, contrary to what you may have heard, corn isn’t necessarily a bad ingredient.
On the other hand, although there’s no way to know for sure here, the corn used in making many pet foods can be similar to the kind used to make feed for livestock.
And that can sometimes be problematic.
What’s more, corn is commonly linked to canine food allergies1.
For these reasons, we rarely consider corn a preferred component in any dog food.
The next item is corn gluten meal. Gluten is the rubbery residue remaining once corn has had most of its starchy carbohydrate (the good stuff) washed out of it.
Compared to meat, glutens are inferior grain-based proteins low in many of the essential amino acids dogs need to sustain life.
This inexpensive plant-based ingredient can significantly boost the total protein content reported in this dog food.
The third ingredient includes wheat. Wheat is subject to the same nutritional shortcomings as corn (already discussed).
The fourth ingredient is meat and bone meal… a dry “rendered” product of slaughterhouse waste. It’s made from what’s left of a slaughtered animal after all the prime cuts have been removed.
In a nutshell, this is the stuff that’s considered “unfit for human consumption”… heads, hooves, miscellaneous organs. You name it.
What’s worse, this item is anonymous… generic. It doesn’t even specify the source animal.
Whenever you see the phrase “meat and bone meal” in any product you can be sure you’re looking at a dog food made with one of the most inferior meat ingredients you can buy.
On the brighter side, meat and bone meals are meat concentrates and contain nearly 300% more protein than fresh meat.
The fifth ingredient lists soybean hulls. The hulls are the skins of soybeans… a waste product left over after the processing of soybeans into oil and meal.
This material is so cheap it’s literally sold by the ton and delivered in tractor-trailer sized lots.
Soybean hulls are used as inexpensive fillers to decrease the cost of making feed for livestock. Only rarely does one find an ingredient of this low a quality in a commercial pet food.
The sixth ingredient lists soybean meal. Soybean meal is actually a useful by-product. It’s what remains of soybeans after all the oil has been removed.
Soybean meal contains 48% protein. However, compared to meat, this is an inferior plant-based protein. So, we must allow for this boosting effect as we judge the meat content of this food.
The seventh 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 stuff could come from almost anywhere… restaurant grease, slaughterhouse waste, diseased cattle… even euthanized pets.
We do not consider generic animal fat a quality ingredient.
The eighth ingredient lists sugar. Sugar is always an unwelcome addition to any dog food. Sugar has a high glycemic index… which means it can negatively affect the blood sugar level of any animal soon after it is eaten.
Animal digest is a chemically hydrolyzed concoction of unspecified body parts… from unspecified animals. Animal digest is usually sprayed onto the surface of a dry kibble to improve its taste.
Purina Active Senior 7+ contains the controversial food moisturizer, propylene glycol. Propylene glycol has been banned by the FDA for use in making cat food.
But it can still be found to this day in lower quality dog foods.
Further down the list, we note three color additives. We’re always disappointed to find artificial coloring in any dog food.
Coloring is used to make the product more appealing to you… not your dog. After all, do you really think your dog cares what color his food is?
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 have much of an effect on the overall rating of this product.
With four notable exceptions…
First, 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.
In rare cases, garlic has been linked to Heinz body anemia in dogs.2
Most of the professional literature we surveyed did not provide any conclusive warnings regarding the use of garlic… especially in small amounts (as it is here).
Although we see no reason to be overly concerned, we do feel it is a mistake to include such controversial ingredients in any dog food product.
We also note 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.
Next, we find no evidence of probiotics… friendly bacteria applied to the surface of the kibble after processing.
Unfortunately, Purina Active Senior 7+ also contains menadione… a controversial form of vitamin K linked to liver toxicity, allergies and the abnormal break-down of red blood cells.
Purina Active Senior 7+ Dog Food
The Bottom Line
Judging by its ingredients alone, Purina Senior Active 7+ dog food appears to be a low quality 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.
The dashboard displays a dry matter protein reading of 30%, a fat level of 9% and an estimated carbohydrate content of 53%.
Average protein. Low fat. And above-average carbohydrates… when compared to a typical dry dog food.
Yet when you consider the plant-based protein-boosting effect of the corn gluten meal, this appears to be the profile of a kibble containing only a modest amount of meat.
Bottom line?
Purina Active Senior 7+ dog food is primarily a grain-based kibble using a modest amount of meat and bone meal as its main source of animal protein… thus earning the brand one star.
Not recommended.
Those looking for a better quality kibble from the same company may wish to check out our review of Purina Pro Plan Selects dry dog food.
A Final Word
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 veterinarian for help.
Have an opinion about this dog food… or maybe the review itself? Please know… we welcome your comments.
Please feel free to share your comments below.
Notes and Updates
12/24/2009 Original review
07/27/2010 Review updated
- White, S., Update on food allergy in the dog and cat, World Small Animal Veterinary Association, Vancouver, 2001 ↩
- 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) ↩
