Review of Hill’s Prescription Diet B/D Canine Dry Dog Food
Hill’s Prescription Diet B/D Canine is not rated due to its intentional therapeutic design.
The Hill’s Prescription Diet B/D Canine product line includes one dry dog food, a recipe designed to help support brain health and aging.
The recipe below includes its AAFCO nutrient profile when available… Growth (puppy), Maintenance (adult), All Life Stages, Supplemental or Unspecified.
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|Hills Prescription Diet B/D Brain Aging Care||not rated||M|
Recipe and Label Analysis
Label and nutrient data below are calculated using dry matter basis.
Hill's Prescription Diet B/D Canine Brain Aging Care
Dry Dog Food
Estimated Dry Matter Nutrient Content
Ingredients: Whole grain corn, chicken by-product meal, pork fat, brewers rice, soybean mill run, soybean meal, flaxseed, fish meal, chicken liver flavor, lactic acid, egg product, soybean oil, carrots, spinach, dried citrus pulp, dried tomato pomace, dried grape pomace, potassium chloride, oat fiber, lipoic acid, vitamins (vitamin E supplement, l-ascorbyl-2-polyphosphate (source of vitamin C), niacin supplement, thiamine mononitrate, vitamin A supplement, calcium pantothenate, biotin, vitamin B12 supplement, pyridoxine hydrochloride, riboflavin supplement, folic acid, vitamin D3 supplement), choline chloride, l-lysine, iodized salt, calcium carbonate, l-tryptophan, taurine, minerals (ferrous sulfate, zinc oxide, copper sulfate, manganous oxide, calcium iodate, sodium selenite), l-carnitine, mixed tocopherols for freshness, natural flavors, beta-carotene
Fiber (estimated dry matter content) = 4.3%
Red denotes controversial item
|Estimated Nutrient Content|
|Dry Matter Basis||19%||16%||57%|
|Calorie Weighted Basis||17%||34%||50%|
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 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 third ingredient is pork fat, a product from rendering pig meat.
Commonly known as lard, pork fat can add significant flavor to any dog food. And it can be high in linoleic acid, an omega-6 fatty acid essential for life.
Although it may not sound very appetizing, pork fat (in moderate amounts) is actually an acceptable pet food ingredient.
The fourth ingredient is 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 fifth ingredient is soybean mill run. Mill run is a by-product, mostly the hulls of soybeans remaining after processing the beans into meal. This is nothing more than a cheap, low-quality filler more commonly found in cattle feeds.
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.
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 seventh ingredient is flaxseed, one of the best plant sources of healthy omega-3 fatty acids. Provided they’ve first been ground into a meal, flax seeds are also rich in soluble fiber.
However, flaxseed contains about 19% protein, a factor that must be considered when judging the actual meat content of this dog food.
The eighth ingredient is fish meal, another protein-rich meat concentrate.
Fish meal is typically obtained from the “clean, dried, ground tissue of undecomposed whole fish and fish cuttings” of commercial fish operations.1
Unfortunately, this particular item is anonymous. Because various fish contain different types of fats, we would have preferred to have known the source species.
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 Hill’s product.
With 7 notable exceptions…
First, we find egg product, an unspecified (wet or dry?) 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.
Next, tomato pomace is a controversial ingredient, a by-product remaining after processing tomatoes into juice, soup and ketchup.
Many praise tomato pomace for its high fiber and nutrient content, while others scorn it as an inexpensive pet food filler.
Just the same, there’s probably not enough tomato pomace here to make much of a difference.
In addition, citrus pulp is a by-product obtained from the waste of citrus juicing operations. This item is most likely included here for the usual benefits of dietary fiber.
Next, soybean oil is red flagged here only due to its rumored (yet unlikely) link to canine food allergies.
However, since soybean oil is high in omega-6 fatty acids and contains no omega-3’s, it’s considered less nutritious than flaxseed oil or a named animal fat.
Additionally, we note the use of taurine, an important amino acid associated with the healthy function of heart muscle. Although taurine is not typically considered essential in canines, some dogs have been shown to be deficient in this critical nutrient.
Unfortunately, we find no mention of probiotics, friendly bacteria applied to the surface of the kibble after processing to help with digestion.
And lastly, 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.
Although this is a prescription product, our review has nothing to do with the accuracy of claims made by the manufacturer as to the product’s ability to treat or cure a specific health condition.
So, to find out whether or not this product is appropriate for your particular pet, it’s important to consult with your veterinarian.
With that understanding…
Based on its ingredients alone, Hill’s Prescription Diet B/D Canine Brain Aging Care looks like a below-average dry dog food.
And a fat-to-protein ratio of about 75%.
Which means this Hill’s product contains…
Below-average protein. Below-average fat. And above-average carbs when compared to other dry dog foods.
When you consider the protein-boosting effect of the soybean meal and flaxseed, this looks like the profile of a kibble containing only a limited amount of meat.
Our Rating of Hill’s Prescription Diet B/D Canine
Dry Dog Food
Hill’s Prescription Diet B/D Canine is a grain-inclusive dry dog food using a limited amount of named by-product meal as its dominant source of animal protein.
Has Hill’s Prescription Diet Dog Food Been Recalled?
The following automated list (if present) includes all dog food recalls since 2009 related to Hill’s.
- Hill’s Prescription Diet and Science Diet Dog Food Recall Expands to Include 44 Varieties (3/20/2019)
- Hill’s Prescription Diet and Science Diet Dog Food Recall (1/31/2019)
- Hill’s Science Diet Dog Food Market Withdrawal of November 2015 (11/29/2015)
- Hill’s Science Diet Dog Food Recall June 2014 (6/3/2014)
You can view a complete list of all dog food recalls since 2009 here.
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More Hill’s Science Diet Brand Reviews
The following Hill’s Science Diet dog food reviews are also posted on this website:
- Hill’s Healthy Advantage Dog Food Review (Canned)
- Hill’s Healthy Advantage Dog Food Review (Dry)
- Hill’s Prescription Diet C/D Canine Dog Food Review (Dry)
- Hill’s Prescription Diet D/D Canine Dog Food Review (Dry)
- Hill’s Prescription Diet Digestive Care I/D Canine Dog Food Review (Dry)
- Hill’s Prescription Diet I/D Canine Dog Food Review (Canned)
- Hill’s Prescription Diet Joint Care J/D Canine Dog Food Review (Canned)
- Hill’s Prescription Diet L/D Canine Dog Food Review (Canned)
- Hill’s Prescription Diet W/D Canine Dog Food Review (Canned)
- Hill’s Prescription Diet W/D Canine Dog Food Review (Dry)
- Hill’s Prescription Diet Weight Reduction R/D Canine Dog Food Review (Dry)
- Hill’s Prescription Diet Z/D Canine Dog Food Review (Canned)
- Hill’s Prescription Diet Z/D Canine Dog Food Review (Dry)
- Hill’s Science Diet Adult Dog Food Review (Canned)
- Hill’s Science Diet Adult Dog Food Review (Dry)
- Hill’s Science Diet Adult Perfect Weight Dog Food Review (Canned)
- Hill’s Science Diet Adult Perfect Weight Dog Food Review (Dry)
- Hill’s Science Diet Adult Plus Dog Food Review (Canned)
- Hill’s Science Diet Adult Plus Dog Food Review (Dry)
- Hill’s Science Diet Grain Free Dog Food Review (Dry)
- Hill’s Science Diet Healthy Cuisine Dog Food Review (Canned)
- Hill’s Science Diet Puppy Food Review (Canned)
- Hill’s Science Diet Puppy Food Review (Dry)
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.
- Association of American Feed Control Officials ↩
05/14/2021 Last Update