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Castor & Pollux vs Whole Earth Farms

Castor & Pollux vs. Whole Earth Farms

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

Guaranteed Analysis: Whole Earth Farms vs. Castor & Pollux

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.

Castor & Pollux Dog Food vs. Whole Earth Farms Dog Food

Dry Dog Food Castor & Pollux Whole Earth Farms
Crude Protein 33.8% 29.3%
Crude Fat 16.8% 15.1%
Crude Fiber 4.4% 4.3%
Wet/Canned Dog Food Castor & Pollux Whole Earth Farms
Crude Protein 40.8% 42.0%
Crude Fat 23.0% 20.5%
Crude Fiber 6.6% 6.8%

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.

Our analysis shows that Castor & Pollux guarantees 4.43% more protein than Whole Earth Farms dry dog food recipes. For wet dog foods, Whole Earth Farms and Castor & Pollux provide roughly the same amount of protein.


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.

Whole Earth Farms and Castor & Pollux both provide roughly the same amount of crude fat. For wet dog foods, Castor & Pollux typically provides a little more fat (about 2.54% more).


There is a relatively insignificant difference between the crude fiber content of the two brands. With regards to wet dog food, Whole Earth Farms and Castor & Pollux also provide roughly the same amount of crude fiber.

Castor & Pollux Cat Food vs. Whole Earth Farms Cat Food

Dry Cat Food Castor & Pollux Whole Earth Farms
Crude Protein 38.2% 39.6%
Crude Fat 15.7% 14.8%
Crude Fiber 4.0% 4.7%
Wet/Canned Cat Food Castor & Pollux Whole Earth Farms
Crude Protein 43.3% 42.2%
Crude Fat 20.4% 19.7%
Crude Fiber 5.7% 12.4%

Crude Protein Comparison For Cat Food

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

Both brands provide roughly the same amount of crude protein. With regards to wet cat food, Castor & Pollux and Whole Earth Farms also provide roughly the same amount of crude protein.


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.

As you can see, Whole Earth Farms and Castor & Pollux guarantee a similar amount of crude fat. With regards to wet cat food, Castor & Pollux and Whole Earth Farms also provide roughly the same amount of crude fat.


Castor & Pollux Pet Food Ingredients vs. Whole Earth Farms Pet Food Ingredients

Castor & Pollux and Whole Earth Farms both use the following controversial ingredients in many of their products:

Pea Protein

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

Garlic
Caramel
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)

Here are some of the controversial ingredients used only by Whole Earth Farms.

Caramel Color

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 Whole Earth Farms.

Menadione Sodium Bisulfite Complex

Product Safety: Recall History of Castor & Pollux & Whole Earth Farms?

Castor & Pollux has been recalled once.

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

According to our records, Whole Earth Farms has never been recalled.

Price Comparison: Which Brand Is More Expensive?

Dry Dog Food Castor & Pollux Whole Earth Farms
Per Pound $4.23 $2.19
Per Calorie $0.0025 $0.0014
Dry Cat Food Castor & Pollux Whole Earth Farms
Per Pound $4.80 $3.07
Per Calorie $0.0029 $0.0019
Wet Dog Food Castor & Pollux Whole Earth Farms
Per Pound $5.64 $4.16
Per Calorie $0.0119 $0.0088
Wet Cat Food Castor & Pollux Whole Earth Farms
Per Pound $7.47 $4.73
Per Calorie $0.0157 $0.0099

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 Castor & Pollux or Whole Earth Farms, 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 Castor & Pollux or Whole Earth Farms will depend on your shopping habits.

Pet owners who use our price comparison feature typically save more than 25% off retail prices for Castor & Pollux and Whole Earth Farms. 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 Castor & Pollux Pet Foods

You can purchase Castor & Pollux pet foods from the following stores:


90 Recipes In-Stock Today

54 Recipes In-Stock Today

48 Recipes In-Stock Today

3 Recipes In-Stock Today

Where To Buy Whole Earth Farms Pet Foods

You can purchase Whole Earth Farms pet food products from these retailers:


39 Recipes In-Stock Today

42 Recipes In-Stock Today

42 Recipes In-Stock Today

Type Of Pet Foods Available

Product Castor & Pollux Whole Earth Farms
Dry Dog Food 21 Recipes 11 Recipes
Wet Dog Food 34 Recipes 15 Recipes
Dog Treats 23 Treats 3 Treats
Dry Cat Food 6 Recipes 5 Recipes
Wet Cat Food 18 Recipes 17 Recipes
Cat Treats 1 Treats

Compare Pet Food Prices Across Multiple Pet Stores