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Ziwi Peak vs Castor & Pollux

Ziwi Peak vs. Castor & Pollux

In this comparison article for Ziwi Peak vs Castor & Pollux, we'll highlight the key differences between these two pet food brands. To properly compare Ziwi Peak 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 Ziwi Peak comparison, we've utilized average data to make general comparisons. If you'd like to see individual product reviews, visit our Ziwi Peak Review Page or Castor & Pollux Review Page.

Guaranteed Analysis: Castor & Pollux vs. Ziwi Peak

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.

Ziwi Peak Dog Food vs. Castor & Pollux Dog Food

Dry Dog Food Ziwi Peak Castor & Pollux
Crude Protein 45.5% 33.9%
Crude Fat 33.5% 16.9%
Crude Fiber 2.3% 4.4%
Wet/Canned Dog Food Ziwi Peak Castor & Pollux
Crude Protein 43.2% 40.8%
Crude Fat 22.0% 23.0%
Crude Fiber 8.3% 6.6%

Crude Protein Comparison For Dog Food

Dogs require twenty-two amino acids to sustain life. Twelve of these amino acids are synthesized naturally, the remaining ten are consumed. Protein is the nutrient which provides some or all of these ten essential amino acids.

The comparison table above shows that Ziwi Peak dry dog foods provide significantly more protein than Castor & Pollux. More specifically, Ziwi Peak guarantees at least 11.65% more protein. For wet dog foods, Ziwi Peak typically provides a little more protein (about 2.42% more).


Crude Fat Comparison For Dog Food

Fats are an absolutely vital component of a balanced canine diet. Not only do fats provide energy, but they also serve important roles in the normal development and function of your dog's body. For example, fats help dogs produce prostaglandins, which reduce inflammation among many other significant functions.

Ziwi Peak dry dog foods clearly provides more fat than Castor & Pollux. In fact, the difference between the fat content is roughly 16.64%, which is a significant amount. For wet dog foods, Castor & Pollux and Ziwi Peak provide roughly the same amount of fat.


There is a small difference between the fiber content of Castor & Pollux and Ziwi Peak. We can see that Castor & Pollux guarantees about 2.10% more fiber than Ziwi Peak. For wet dog foods, Ziwi Peak and Castor & Pollux provide roughly the same amount of fiber.

Ziwi Peak Cat Food vs. Castor & Pollux Cat Food

Dry Cat Food Ziwi Peak Castor & Pollux
Crude Protein 46.3% 38.2%
Crude Fat 32.8% 15.7%
Crude Fiber 2.3% 4.0%
Wet/Canned Cat Food Ziwi Peak Castor & Pollux
Crude Protein 46.0% 42.5%
Crude Fat 19.9% 21.0%
Crude Fiber 8.5% 5.6%

Crude Protein Comparison For Cat Food

Cats require twenty-two amino acids to sustain life. Eleven of these amino acids are synthesized naturally, the remaining eleven are consumed. Protein is the nutrient which provides some or all of these eleven essential amino acids.

On average, Ziwi Peak dry cat food recipes contain 8.08% more protein than Castor & Pollux recipes. Clearly, there is a significant difference between the protein content of Castor & Pollux and Ziwi Peak. For wet cat foods, Ziwi Peak typically provides a little more protein (about 3.54% more).


Crude Fat Comparison For Cat Food

There are many ways in which dietary fat contributes to the overall health of our feline friends. Here is a short list of benefits provided by fats (not exhaustive):

  • Fats help with the digestion and absorption of fat-soluble vitamins
  • Reduce inflammation associated with arthritis
  • Slow the growth of yeast infections
  • Prevent or reduce the likelihood of certain heart problems.
  • Aid in the development of the retina and visual cortex.

When you look at the average percentages of crude fat for dry cat food, it's clear that Ziwi Peak provides significantly more fat. On average, Ziwi Peak guarantees about 17.06% more protein than Castor & Pollux. For wet cat foods, Castor & Pollux and Ziwi Peak provide roughly the same amount of fat.


There is a relatively insignificant difference between the crude fiber content of the two brands. For wet cat foods, Ziwi Peak typically provides a little more fiber (about 2.90% more).

Ziwi Peak 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)

Product Safety: Recall History of Ziwi Peak & Castor & Pollux?

According to our records, Ziwi Peak 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 Ziwi Peak Castor & Pollux
Per Pound $20.02 $4.25
Per Calorie $0.0086 $0.0026
Dry Cat Food Ziwi Peak Castor & Pollux
Per Pound $25.66 $4.85
Per Calorie $0.0111 $0.0029
Wet Dog Food Ziwi Peak Castor & Pollux
Per Pound $7.94 $5.89
Per Calorie $0.0142 $0.0125
Wet Cat Food Ziwi Peak Castor & Pollux
Per Pound $12.11 $7.51
Per Calorie $0.0226 $0.0158

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 Ziwi Peak 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 Ziwi Peak 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 Ziwi Peak 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 Ziwi Peak Pet Foods

You can purchase Ziwi Peak pet foods from the following stores:


34 Recipes In-Stock Today

30 Recipes In-Stock Today

22 Recipes In-Stock Today

Where To Buy Castor & Pollux Pet Foods

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


89 Recipes In-Stock Today

54 Recipes In-Stock Today

47 Recipes In-Stock Today

3 Recipes In-Stock


Type Of Pet Foods Available

Product Ziwi Peak Castor & Pollux
Dry Dog Food 6 Recipes 20 Recipes
Wet Dog Food 6 Recipes 34 Recipes
Dog Treats 9 Treats 23 Treats
Dry Cat Food 5 Recipes 6 Recipes
Wet Cat Food 8 Recipes 16 Recipes
Cat Treats 1 Treats

Compare Pet Food Prices Across Multiple Pet Stores