DogFoodAdvisor is reader supported. If you buy using links on this page, we may earn a referral fee.

Castor and Pollux Pristine Grain Free Dog Food Review (Dry)

Castor and Pollux Pristine Salmon and Sweet Potato Dry Dog Food

Review of Castor and Pollux Pristine Grain Free Dry Dog Food

Rating:

Castor and Pollux Pristine Grain Free Dog Food receives the Advisor’s top rating of 5 stars.

The Castor and Pollux Pristine Grain Free product line includes the 5 dry dog foods listed below.

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

Product Rating AAFCO
Pristine Grain Free Small Breed Grass-Fed Beef and Sweet Potato 5 M
Pristine Grain Free Wild Caught Salmon and Sweet Potato 5 M
Pristine Grain Free Free-Range Chicken, Turkey and Lentil 5 A
Pristine Grain Free Free-Range Chicken and Sweet Potato with Raw Bites 5 M
Pristine Grain Free Grass-Fed Beef and Sweet Potato with Raw Bites 5 M

Recipe and Label Analysis

Castor and Pollux Pristine Grain Free Wild Caught Salmon and Sweet Potato was selected to represent the other products in the line for detailed recipe and nutrient analysis.

Label and nutrient data below are calculated using dry matter basis.


Castor and Pollux Pristine Grain Free Wild Caught Salmon & Sweet Potato

Dry Dog Food

Estimated Dry Matter Nutrient Content

Protein = 32% | Fat = 16% | Carbs = 45%

Ingredients: Salmon, whitefish meal, organic sweet potatoes, organic potatoes, lamb meal, organic sunflower oil, organic tapioca, organic sunflower seed meal, natural flavor, organic flaxseed, chicory root (source of inulin), organic apples, organic blueberries, salt, potassium chloride, taurine, vitamins (vitamin E supplement, niacin supplement, thiamine mononitrate, d-calcium pantothenate, vitamin A supplement, pyridoxine hydrochloride, riboflavin supplement, vitamin D3 supplement, biotin, vitamin B12 supplement, folic acid), minerals (zinc methionine complex, calcium carbonate, zinc sulfate, iron proteinate, ferrous sulfate, copper proteinate, copper sulfate, manganese proteinate, sodium selenite, manganous oxide, calcium iodate, ethylenediamine dihydroiodide), mixed tocopherols for freshness, citric acid for freshness, dried Bacillus coagulans fermentation product

Fiber (estimated dry matter content) = 3.9%

Red denotes controversial item

Estimated Nutrient Content
MethodProteinFatCarbs
Guaranteed Analysis28%14%NA
Dry Matter Basis32%16%45%
Calorie Weighted Basis28%33%39%
Protein = 28% | Fat = 33% | Carbs = 39%

Ingredient Analysis

The first ingredient in this dog food is salmon. Although it is rich in omega-3 fatty acids, raw salmon 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 second ingredient is whitefish meal. Because it is considered a meat concentrate, fish meal contains almost 300% more protein than fresh fish itself.

Fish meal is typically obtained from the “clean, dried, ground tissue of undecomposed whole fish and fish cuttings” of commercial fish operations.1

Whitefish is a marine or freshwater species native to Canada and the California coast.

The third ingredient is sweet potato. Sweet potatoes are a gluten-free source of complex carbohydrates in dog food. They are naturally rich in dietary fiber and beta carotene.

The fourth ingredient is potato. Potatoes can be considered a gluten-free source of digestible carbohydrates. Yet with the exception of perhaps their caloric content, potatoes are of only modest nutritional value to a dog.

The fifth ingredient is lamb meal, another protein-rich meat concentrate.

The sixth ingredient is sunflower oil. Sunflower oil is nutritionally similar to safflower oil. Since these oils are high in omega-6 fatty acids and contain no omega-3’s, they’re considered less nutritious than canola or flaxseed oils.

Sunflower oil is notable for its resistance to heat damage during cooking.

There are several different types of sunflower oil, some better than others. Without knowing more, it’s impossible to judge the quality of this ingredient.

The seventh ingredient is tapioca, a gluten-free, starchy carbohydrate extract made from the root of the cassava plant.

The next ingredient is sunflower seed meal, a by-product of the oil extraction process – and an item more typically found in feed for livestock.

Although sunflower meal contains about 34% protein, it 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.

Sunflower seeds are a good source of plant-based fatty acids that are also rich in vitamins, minerals and dietary fiber.

After the natural flavor, we find 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.

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 Castor and Pollux product.

With 4 notable exceptions

First, chicory root 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.

Next, 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.

Since taurine deficiency appears to be more common in pets consuming grain-free diets, we view its presence in this recipe as a positive addition.

In addition, this recipe includes 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, 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.

Nutrient Analysis

Based on its ingredients alone, Castor and Pollux Pristine Grain Free Dog Food looks like an above-average dry product.

The dashboard displays a dry matter protein reading of 32%, a fat level of 16% and estimated carbohydrates of about 45%.

As a group, the brand features an average protein content of 35% and a mean fat level of 18%. Together, these figures suggest a carbohydrate content of 40% for the overall product line.

And a fat-to-protein ratio of about 50%.

Which means this Castor and Pollux product line contains…

Above-average protein. Above-average fat. And below-average carbs when compared to a typical dry dog food.

Even when you consider the protein-boosting effect of the sunflower seed meal and flaxseed, this looks like the profile of a dry product containing a significant amount of meat.

Our Rating of Castor and Pollux Pristine Grain Free Dry Dog Food

Castor and Pollux Pristine Grain Free is a dry dog food using a significant amount of named meat meals as its dominant source of animal protein, thus earning the brand 5 stars.

Enthusiastically recommended.

Castor and Pollux Dog Food
Recall History

The following automated list (if present) includes all dog food recalls since 2009 related to Castor and Pollux.

No recalls noted.

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

Get Free Recall Alerts

Get free dog food recall alerts sent to you by email. Subscribe to The Advisor’s recall notification list.

More Castor and Pollux Brand Reviews

The following Castor and Pollux dog food reviews are also posted on this website:

A Final Word

The Dog Food Advisor is privately owned. We do 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.

Important FDA Alert

The FDA is investigating a potential link between diet and heart disease in dogs. Click here for details.

References

  1. Association of American Feed Control Officials

12/03/2021 Last Update

Share via
Copy link
Powered by Social Snap