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Ziwi Peak &
Castor & Pollux
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Ziwi Peak &
Castor & Pollux
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15% OFF
Ziwi Peak
For New Customers w/ Code: AFPAWDIET
Compare Ziwi Peak To
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35% OFF
Ziwi Peak &
Castor & Pollux
First Auto-Ship
20% OFF
Ziwi Peak &
Castor & Pollux
First Auto-Ship w/ Code: PAWDIET20
15% OFF
Ziwi Peak
For New Customers w/ Code: AFPAWDIET
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 | 45.1% | 32.6% |
| Crude Fat | 34.8% | 17.1% |
| Crude Fiber | 2.7% | 4.2% |
| Wet/Canned Dog Food | Ziwi Peak | Castor & Pollux |
| Crude Protein | 43.9% | 39.9% |
| Crude Fat | 26.0% | 23.5% |
| Crude Fiber | 7.6% | 6.5% |
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 12.51% more protein. For wet dog foods, Ziwi Peak provides more protein (about 4.08% 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 17.64%, which is a significant amount. For wet dog foods, Ziwi Peak typically provides a little more fat (about 2.55% more).
There is a relatively insignificant difference between the crude fiber content of the two brands. With regards to wet dog food, Ziwi Peak and Castor & Pollux also provide roughly the same amount of crude 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 | 45.9% | 43.3% |
| Crude Fat | 24.5% | 20.4% |
| Crude Fiber | 7.7% | 5.7% |
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 2.59% 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, Ziwi Peak provides more fat (about 4.16% more).
Both brands provide roughly the same amount of crude fiber. With regards to wet cat food, Ziwi Peak and Castor & Pollux also provide roughly the same amount of crude fiber.
Ziwi Peak Pet Food Ingredients vs. Castor & Pollux Pet Food Ingredients
Here are some of the controversial ingredients used only by Ziwi Peak.
Here are some of the controversial ingredients used only by Castor & Pollux.
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.
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 | $24.49 | $5.01 |
| Per Calorie | $0.0106 | $0.0030 |
| Dry Cat Food | Ziwi Peak | Castor & Pollux |
| Per Pound | $31.18 | $5.50 |
| Per Calorie | $0.0134 | $0.0033 |
| Wet Dog Food | Ziwi Peak | Castor & Pollux |
| Per Pound | $9.34 | $8.32 |
| Per Calorie | $0.0161 | $0.0182 |
| Wet Cat Food | Ziwi Peak | Castor & Pollux |
| Per Pound | $15.68 | $9.65 |
| Per Calorie | $0.0279 | $0.0214 |
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.
- 20% Off First Auto-Ship @ PetFlow (Use Code PAWDIET20)
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- 15% Off The Entire Site @ OnlyNaturalPet (Use Code AFPAWDIET)
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:
Where To Buy Castor & Pollux Pet Foods
You can purchase Castor & Pollux pet food products from these retailers:
Type Of Pet Foods Available
| Product | Ziwi Peak | Castor & Pollux |
| Dry Dog Food | 9 Recipes | 17 Recipes |
| Wet Dog Food | 9 Recipes | 28 Recipes |
| Dog Treats | 11 Treats | 22 Treats |
| Dry Cat Food | 5 Recipes | 6 Recipes |
| Wet Cat Food | 10 Recipes | 18 Recipes |
| Cat Treats | None | 1 Treats |
Top Rated Ziwi Peak Recipes
Top Rated Castor & Pollux Recipes
