Royal Canin Size Health Nutrition X-Small Dog Food receives the Advisor’s mid-tier rating of 3 stars.
The Royal Canin Size Health Nutrition X-Small product line includes 3 dry dog foods.
Each recipe below includes its related AAFCO nutrient profile when available on the product’s official webpage: Growth, Maintenance, All Life Stages, Supplemental or Unspecified.
Important: Because many websites do not reliably specify which Growth or All Life Stages recipes are safe for large breed puppies, we do not include that data in this report. Be sure to check actual packaging for that information.
Click the links below to compare prices at an online retailer.
- Royal Canin X-Small Adult (2.5 stars) [M]
- Royal Canin X-Small Puppy (3.5 stars) [G]
- Royal Canin X-Small Aging 12+ (2.5 stars) [M]
Royal Canin Size Health Nutrition X-Small Adult recipe was selected to represent the other products in the line for this review.
Royal Canin Size Health Nutrition X-Small Adult
Dry Dog Food
Estimated Dry Matter Nutrient Content
Ingredients: Brewers rice, corn, chicken by-product meal, chicken fat, corn gluten meal, wheat gluten, natural flavors, dried chicory root, vegetable oil, fish oil, psyllium seed husk, potassium chloride, calcium sulfate, monocalcium phosphate, salt, l-tyrosine, l-lysine, calcium carbonate, dl-methionine, fructooligosaccharides, sodium tripolyphosphate, l-arginine, choline chloride, vitamins [dl-alpha tocopherol acetate (source of vitamin E), l-ascorbyl-2-polyphosphate (source of vitamin C), biotin, d-calcium pantothenate, vitamin A acetate, pyridoxine hydrochloride (vitamin B6), niacin supplement, folic acid, thiamine mononitrate (vitamin B1), vitamin B12 supplement, riboflavin supplement, vitamin D3 supplement], magnesium oxide, trace minerals [zinc proteinate, zinc oxide, ferrous sulfate, manganese proteinate, manganous oxide, copper sulfate, calcium iodate, sodium selenite, copper proteinate], l-carnitine, rosemary extract, preserved with mixed tocopherols and citric acid
Fiber (estimated dry matter content) = 3.9%
Red denotes controversial item
|Estimated Nutrient Content|
|Dry Matter Basis||24%||18%||50%|
|Calorie Weighted Basis||21%||37%||42%|
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 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 third 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 is chicken fat. Chicken fat 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 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 sixth ingredient is wheat gluten, another plant-based protein booster.
After the natural flavor, we find chicory root. Chicory is rich in inulin, a starch-like compound made up of repeating units of carbohydrates and found in certain roots and tubers.
Not only is inulin a natural source of soluble dietary fiber, it’s also a prebiotic used to promote the growth of healthy bacteria in a dog’s digestive tract.
The ninth 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 product.
With two 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.
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.
Royal Canin Size Health Nutrition X-Small Dog Food Review
Judging by its ingredients alone, Royal Canin Size Health Nutrition X-Small dog food looks like an average dry product.
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.
As a group, the brand features an average protein content of 27% and a mean fat level of 18%. Together, these figures suggest a carbohydrate content of 47% for the overall product line.
And a fat-to-protein ratio of about 66%.
Near-average protein. Above-average fat. And near-average carbs when compared to a typical dry dog food.
When you consider the protein-boosting effect of the corn and wheat glutens, this looks like the profile of a kibble containing a moderate amount of meat.
Royal Canin Size Health Nutrition X-Small is a plant-based dry dog food using a moderate amount of named by-product meal as its main source of animal protein, thus earning the brand 3 stars.
Please note certain recipes are sometimes given a higher or lower rating based upon our estimate of their total meat content and (when appropriate) their fat-to-protein ratios.
Royal Canin Dog Food
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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
11/23/2018 Last Update