Castor and Pollux Organix Grain Free canned dog food receives the Advisor’s second-highest tier rating of 4 stars.
The Castor and Pollux Organix Grain Free product line includes four canned dog foods, each claimed to meet AAFCO nutrient profiles for adult maintenance.
The following is a list of recipes available at the time of this review.
- Castor and Pollux Organix Grain Free Chicken and Potato
- Castor and Pollux Organix Grain Free Chicken and Vegetable
- Castor and Pollux Organix Grain Free Turkey, Carrot and Potato
- Castor and Pollux Organix Grain Free Turkey and Vegetable (3.5 stars)
Castor and Pollux Organix Grain Free Chicken and Vegetable was selected to represent the other products in the line for this review.
Castor and Pollux Organix Grain-Free Adult Chicken and Vegetable
Canned Dog Food
Estimated Dry Matter Nutrient Content
Ingredients: Organic chicken, water sufficient for processing, organic turkey, organic chicken liver, organic pea flour, organic carrots, organic potatoes, organic apples, organic guar gum, organic flaxseed meal, salt, tricalcium phosphate, minerals (iron amino acid chelate, zinc amino acid chelate, cobalt amino acid chelate, copper amino acid chelate, manganese amino acid chelate, sodium selenite, potassium iodide), organic garlic, potassium chloride, vitamins (vitamin E, A, B12, D3 supplements, thiamine mononitrate, biotin, riboflavin supplement)
Fiber (estimated dry matter content) = 4.5%
Red items when present indicate controversial ingredients
|Estimated Nutrient Content|
|Dry Matter Basis||34%||27%||31%|
|Calorie Weighted Basis||26%||51%||23%|
The first ingredient in this dog food includes chicken. Chicken is considered “the clean combination of flesh and skin… derived from the parts or whole carcasses of chicken”.1
The second ingredient is water, which adds nothing but moisture to this food. Water is a routine finding in most canned dog foods.
The third ingredient is turkey, another quality raw item.
Both chicken and turkey are naturally rich in the ten essential amino acids required by a dog to sustain life.
The fourth item is chicken liver. This is an organ meat sourced from a named animal and thus considered a beneficial component.
The fifth ingredient is pea flour, a powder made from roasted yellow peas. Pea flour contains as much as 25% protein, a factor that must be considered when judging the meat content of this dog food.
The sixth ingredient is carrots. Carrots are rich in beta-carotene, minerals and dietary fiber.
The seventh 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 eighth ingredient includes apple, a nutrient-rich fruit that’s also high in fiber.
The ninth ingredient is guar gum, a gelling or thickening agent found in many wet pet foods. Refined from dehusked guar beans, guar gum can add a notable amount of dietary fiber to any product.
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 three notable exceptions…
First, flaxseed meal is one of the best plant-based sources of healthy omega-3 fatty acids. Flax meal is particularly 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.
Next, garlic can be a controversial item. Although most experts favor the ingredient for its numerous health benefits, garlic (in rare cases) has been linked to Heinz body anemia in dogs.2
However, the limited professional literature we surveyed provided no definitive warnings regarding the use of garlic — especially when used in small amounts (as it likely is here).
And lastly, this food also 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.
Castor and Pollux Organix Grain Free
Canned Dog Food
The Bottom Line
Judging by its ingredients alone, Castor and Pollux Organix Grain Free looks like an above-average canned dog food.
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 34% and a mean fat level of 28%. Together, these figures suggest a carbohydrate content of 30% for the overall product line.
And a fat-to-protein ratio of about 83%.
Below-average protein. Below-average fat. And above-average carbs when compared to a typical canned dog food.
When you consider the protein-boosting effects of the pea flour, flaxseed meal and rice protein concentrate contained in another recipe, this looks like the profile of a wet product containing just a moderate amount of meat.
Since this recipe contains a number of organic ingredients, we feel compelled to grant this line a more favorable status as we consider its final rating.
That’s because organic ingredients must comply with notably more stringent government standards — standards which significantly restrict the use of any synthetic pesticides, herbicides, insecticides, hormones or antibiotics.
Castor and Pollux Organix Grain Free is a meat-based canned dog food using a moderate amount of chicken or turkey as its main sources of animal protein, thus earning the brand 4 stars.
Please note certain recipes are sometimes given a higher or lower rating based upon our estimate of their total meat content.
Rice ingredients can sometimes contain arsenic. Until the US FDA establishes safe upper levels for arsenic content, pet owners may wish to limit the total amount of rice fed in a dog's daily diet.
A Final Word
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Notes and Updates
12/13/2011 Original review
06/14/2013 Review updated
06/14/2013 Last Update