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Zignature vs Castor & Pollux

Zignature vs. Castor & Pollux

In this comparison article for Zignature vs Castor & Pollux, we'll highlight the key differences between these two pet food brands. To properly compare Zignature and Castor & Pollux, we'll use up-to-date nutritional and price information.

There are many factors to consider when choosing the best pet food brand for your pet. Factors such as ingredient quality, guaranteed analysis, product safety, brand history, and cost are among the most important factors to consider.

Throughout this Castor & Pollux vs Zignature comparison, we've utilized average data to make general comparisons. If you'd like to see individual product reviews, visit our Zignature Review Page or Castor & Pollux Review Page.

Guaranteed Analysis: Castor & Pollux vs. Zignature

According to AAFCO, all pet food labels must provide a guaranteed analysis of nutrient content. The analysis must provide guaranteed minimum percentages of crude protein and crude fat, and maximum percentages of crude fiber and moisture.

All percentages used in this comparison are averages reported on a dry matter basis.

Zignature Dog Food vs. Castor & Pollux Dog Food

Dry Dog Food Zignature Castor & Pollux
Crude Protein 32.6% 33.1%
Crude Fat 17.1% 16.9%
Crude Fiber 4.9% 4.1%
Wet/Canned Dog Food Zignature Castor & Pollux
Crude Protein 43.0% 39.9%
Crude Fat 26.2% 23.5%
Crude Fiber 6.4% 6.5%

Crude Protein Comparison For Dog Food

Protein is an extremely important part of your dog's diet. Without sufficient protein, dogs can develop a wide-range of serious health problems.

Both brands provide roughly the same amount of crude protein. For wet dog foods, Zignature typically provides a little more protein (about 3.14% more).


Crude Fat Comparison For Dog Food

Dietary fats serves a multitude of roles in the proper development and function of our canine companions. Here are some of the benefits (not exhaustive):

  • Help produce prostaglandins, which reduce inflammation among other critical functions.
  • Aid in the absorption of fat-soluble vitamins
  • Improve skin and coat health
  • Improve the palatially of your dog's food

As you can see, Castor & Pollux and Zignature guarantee a similar amount of crude fat. For wet dog foods, Zignature typically provides a little more fat (about 2.76% more).


Castor & Pollux and Zignature both provide roughly the same amount of crude fiber. With regards to wet dog food, Castor & Pollux and Zignature also provide roughly the same amount of crude fiber.

Zignature Pet Food Ingredients vs. Castor & Pollux Pet Food Ingredients

Here are some of the controversial ingredients used only by Castor & Pollux.

Garlic
Caramel
Pea Protein
Garlic Powder
Tomato Pomace
Powdered Cellulose
Organic Pea Protein
Organic Caramel Color
Organic Garlic Powder
Pea Protein Concentrate
Canola Oil (Preserved With Mixed Tocopherols)
Canola Oil (Preserved With Mixed Tocopherols And Citric Acid)

We believe that certain pet food ingredients are linked to adverse health affects; these ingredients are classified as harmful.

Here are some of the harmful ingredients used only by Castor & Pollux.

Menadione Sodium Bisulfite Complex

Product Safety: Recall History of Zignature & Castor & Pollux?

According to our records, Zignature has never been recalled.

Castor & Pollux has been recalled once.

  • May 23, 2018: elevated levels of beef thyroid hormone

Price Comparison: Which Brand Is More Expensive?

Dry Dog Food Zignature Castor & Pollux
Per Pound $3.01 $4.96
Per Calorie $0.0017 $0.0030
Wet Dog Food Zignature Castor & Pollux
Per Pound $4.37 $5.78
Per Calorie $0.0087 $0.0122

The average cost-per-lb is heavily influenced by the varying amounts of moisture present in each brand's food products (wet vs. dry food, dry vs. freeze-dried food, etc). However, the average cost-per-kcal eliminates the influence of moisture. Therefore, the average cost-per-kcal is the better metric to consider.

If you'd like to calculate the average cost-per-day or cost-pet-year of feeding Zignature or Castor & Pollux, input your pet's weight into our cost analyzer widget.

Averages price data can identify whether or not there exists a significant price difference between two brands. However, the actual price that you'll pay for Zignature or Castor & Pollux will depend on your shopping habits.

Pet owners who use our price comparison feature typically save more than 25% off retail prices for Zignature and Castor & Pollux. In addition, we currently have some great coupons for our readers.


Disclosure: PawDiet has an affiliate relationship with stores featured (or linked-to) in this article. We are compensated for referring customers. Thank you for shopping with our retail partners!

Where To Buy Zignature Pet Foods

You can purchase Zignature pet foods from the following stores:


44 Recipes In-Stock Today

43 Recipes In-Stock Today

10 Recipes In-Stock Today

24 Recipes In-Stock Today

Where To Buy Castor & Pollux Pet Foods

You can purchase Castor & Pollux pet food products from these retailers:


58 Recipes In-Stock Today

25 Recipes In-Stock Today

51 Recipes In-Stock Today

Type Of Pet Foods Available

Product Zignature Castor & Pollux
Dry Dog Food 21 Recipes 14 Recipes
Wet Dog Food 13 Recipes 28 Recipes
Dog Treats 13 Treats 22 Treats
Dry Cat Food 6 Recipes
Wet Cat Food 18 Recipes
Cat Treats 1 Treats

Compare Pet Food Prices Across Multiple Pet Stores