Royal Canin Veterinary Diet Hydrolyzed Protein Dog Food Review (Dry)

Mike Sagman Karan French

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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Karan French
Karan French

Karan French

Senior Researcher

Karan is a senior researcher at the Dog Food Advisor, working closely with our in-house pet nutritionist, Laura Ward, to give pet parents all the information they need to find the best food for their dog.

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Updated: October 26, 2026

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

The Royal Canin Veterinary Diet Hydrolyzed Protein product consists of seven dry dog foods. Each is designed to help in the treatment of canine allergies.

This dog food is not rated due to its intentional therapeutic design.

Each recipe below includes its AAFCO nutrient profile when available… Growth (puppy), Maintenance (adult), All Life Stages, Supplemental or Unspecified.

Recipe and Label Analysis

Royal Canin Veterinary Diet Hydrolyzed Protein HP was selected to represent the other products in the line for detailed recipe and nutrient analysis.

Royal Canin Veterinary Diet Hydrolyzed Protein Adult HP

Estimated Dry Matter Nutrient Content

22.3%

Protein

19.6%

Fat

47%

CarbsCarbohydrates

Brewers rice, hydrolyzed soy protein, chicken fat, natural flavors, dried plain beet pulp, vegetable oil, sodium aluminosilicate, monocalcium phosphate, fish oil, calcium carbonate, fructooligosaccharides, potassium chloride, salt, dl-methionine, vitamins [dl-alpha tocopherol acetate (source of vitamin E), niacin supplement, l-ascorbyl-2-polyphosphate (source of vitamin C), d-calcium pantothenate, biotin, pyridoxine hydrochloride (vitamin B6), riboflavin supplement, thiamine mononitrate (vitamin B1), vitamin A acetate, vitamin B12 supplement, folic acid, vitamin D3 supplement], choline chloride, taurine, gla safflower oil, marigold extract (tagetes erecta l.), trace minerals[zinc proteinate, zinc oxide, manganese proteinate, manganous oxide, copper sulfate, ferrous sulfate, sodium selenite, copper proteinate, calcium iodate], magnesium oxide, rosemary extract, preserved with mixed tocopherols and citric acid


Fiber (estimated dry matter content) = 3.1%

Red denotes any controversial items

Estimated Nutrient Content
Method Protein Fat Carbs
Guaranteed Analysis 19% 17% NA
Dry Matter Basis 21% 19% 52%
Calorie Weighted Basis 18% 39% 44%

Ingredients Analysis

The first ingredient in this dog food 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 second ingredient is hydrolyzed soy protein, soy that’s been chemically broken-down into its component amino acids. Hydrolyzed proteins are considered hypoallergenic.

The third ingredient is 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.

After the natural flavors, 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 vegetable oil, a generic oil of unknown origin. The ratio of omega-6 to omega-3 fats in any oil is nutritionally critical and can vary significantly (depending on the source).

Without knowing more, it’s impossible to judge the quality of an item so vaguely described. However, compared to a named animal fat, a generic vegetable oil cannot be considered a quality ingredient.

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 Royal Canin product.

With four notable exceptions…

First, we find fish oil. 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.

Next, this recipe contains fructooligosaccharide, an alternative sweetener1 probably used here as a prebiotic. Prebiotics function to support the growth of healthy bacteria in the large intestine.

In addition, 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.

And lastly, this food includes 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.

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 dog food is appropriate for your particular pet, it’s important to consult your veterinarian.

With that understanding…

Based on its ingredients alone, Royal Canin Veterinary Diets Hydrolyzed Protein HP dog food appears to be an average dry product.

The dashboard displays a dry matter protein reading of 22.3%, a fat level of 19.6% and estimated carbohydrates of about 47%.

As a group, the brand features an average protein content of 24% and a mean fat level of 14.2%. Together, these figures suggest a carbohydrate content of 47.6% for the overall product line.

And a fat-to-protein ratio of about 64%.

Which means this Royal Canin product line contains…

Below-average protein. Below-average fat. And near-average carbs when compared to a typical dry dog food.

Royal Canin Dog Food Recall History

The following automated list (if present) includes all dog food recalls related to Royal Canin through November 2026.

No recalls noted.

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

What do pet parents think?

Our Rating of Royal Canin Veterinary Diet Hydrolyzed Protein Dog Food

Royal Canin Veterinary Diet Hydrolyzed Protein is a grain-inclusive dry dog food using soy as its main source of protein.

About

Royal Canin, founded in 1968 by French veterinarian Jean Cathary and owned by Mars Inc. since 2002, is a leading breed-specific pet nutrition brand within Mars Petcare, specialising in science-based formulas.

A Final Word

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