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Hill’s Prescription Diet B/D Canine Dog Food Review (Dry)

Mike Sagman  Julia Ogden

By

Mike Sagman
Mike Sagman

Mike Sagman

Founder

Dr Mike Sagman is the creator of the Dog Food Advisor. He founded the website in 2008, after his unquestioning trust in commercial dog food led to the tragic death of his dog Penny.

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&
Julia Ogden
Julia Ogden

Julia Ogden

Content Director

Julia is the content director at the Dog Food Advisor and responsible for the overall strategy of the website.

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Updated: June 17, 2024

Verified by Laura Ward

Laura Ward

Laura Ward

Pet Nutritionist

Laura studied BSc (Hons) Animal Science with an accreditation in Nutrition at the University of Nottingham, before working for eight years in the pet food and nutrition industry.

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Laura Ward

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Our Verdict

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.

Product line Rating AAFCO
Hills Prescription Diet B/D Brain Aging Care Not rated M
Hill's Prescription Diet B/D Canine Brain Aging Care

Estimated Dry Matter Nutrient Content

19.1%

Protein

14.4%

Fat

58.5%

CarbsCarbohydrates

Whole grain corn, chicken, whole grain wheat, chicken fat, brewers rice, chicken meal, flaxseed, chicken liver flavor, dried beet pulp, soybean oil, carrots, dried tomato pomace, dried citrus pulp, lactic acid, spinach, l-lysine, potassium chloride, lipoic acid, choline chloride, vitamins (vitamin E supplement, l-ascorbyl-2-polyphosphate (source of vitamin C), niacin supplement, thiamine mononitrate, vitamin A supplement, calcium pantothenate, riboflavin supplement, biotin, vitamin B12 supplement, pyridoxine hydrochloride, folic acid, vitamin D3 supplement), calcium carbonate, dicalcium phosphate, iodized salt, minerals (ferrous sulfate, zinc oxide, copper sulfate, manganous oxide, calcium iodate, sodium selenite), l-tryptophan, taurine, natural flavors, l-carnitine, mixed tocopherols for freshness, beta-carotene


Fiber (estimated dry matter content) = 2.9%

Red denotes any controversial items

Estimated Nutrient Content
Method Protein Fat Carbs
Guaranteed Analysis 19% 14% NA
Dry Matter Basis 19% 14% 59%
Calorie Weighted Basis 17% 31% 52%

Ingredients Analysis

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.

The second ingredient 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 third ingredient is wheat. Wheat is another cereal grain and subject to the same issues as corn (previously discussed).

The fourth ingredient lists chicken fat. This item is obtained from rendering chicken, a process similar to making soup in which the fat itself is skimmed from the surface of the liquid.

Chicken fat is high in linoleic acid, an omega-6 fatty acid essential for life. Although it doesn’t sound very appetizing, chicken fat is actually a quality ingredient.

The fifth 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 sixth ingredient is chicken meal. Chicken meal is considered a meat concentrate and contains nearly 300% more protein than fresh chicken.

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.

After the chicken liver flavor, we find beet pulp. Beet pulp is a controversial ingredient, a high fiber by-product of sugar beet processing.

Some denounce beet pulp as an inexpensive filler while others cite its outstanding intestinal health and blood sugar benefits.

We only call your attention here to the controversy and believe the inclusion of beet pulp in reasonable amounts in most dog foods is entirely acceptable.

The next ingredient is soybean oil, which 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.

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 five notable exceptions

First, we find tomato pomace. 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.

Next, 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.

In addition, 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.

Next, this recipe contains sodium selenite, a controversial form of the mineral selenium. Sodium selenite appears to be nutritionally inferior to the more natural source of selenium found in selenium yeast.

And lastly, 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.

Nutrient Analysis

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 an average dry dog food.

The dashboard displays a dry matter protein reading of 19%, a fat level of 14% and estimated carbohydrates of about 59%.

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.

Even when you consider the protein-boosting effect of the flaxseed, this looks like the profile of a kibble containing only a limited amount of meat.

Hill's Dog Food Recall History

The following automated list (if present) includes all dog food recalls related to Hill's through July 2024.

No recalls noted.

You can view a complete list of all dog food recalls since 2009 here.

Our Rating of Hill's Dog Food

Hill’s Prescription Diet B/D Canine is a grain-inclusive dry dog food using a limited amount of named meat meal as its dominant source of animal protein.

A Final Word

The Dog Food Advisor does not accept money, gifts, samples or other incentives in exchange for special consideration in preparing our reviews.

However, we do receive a referral fee from online retailers (like Chewy or Amazon) and from sellers of perishable pet food when readers click over to their websites from ours. This helps cover the cost of operation of our free blog. Thanks for your support.

For more information, please visit our Disclaimer and Disclosure page.

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