Nulo vs. Castor & Pollux

Nulo vs Castor & Pollux

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

Guaranteed Analysis: Castor & Pollux vs. Nulo

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.

Nulo Dog Food vs. Castor & Pollux Dog Food

Dry Dog Food Nulo Castor & Pollux
Crude Protein 36.9% 33.7%
Crude Fat 20.3% 16.9%
Crude Fiber 5.2% 4.5%
Wet/Canned Dog Food Nulo Castor & Pollux
Crude Protein 45.5% 40.4%
Crude Fat 29.5% 23.3%
Crude Fiber 4.5% 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.

According to our data, Nulo guarantees 3.19% more protein than Castor & Pollux. Although this difference is relatively small, it's still a notable difference. In addition, Nulo wet dog foods also provide more protein than Castor & Pollux wet foods.


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.

There is a small difference between the fat content of Nulo and Castor & Pollux. We can see that Nulo guarantees about 3.39% more fat than Castor & Pollux. In addition, Nulo wet dog foods also provide more fat than Castor & Pollux wet foods.


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

Nulo Cat Food vs. Castor & Pollux Cat Food

Dry Cat Food Nulo Castor & Pollux
Crude Protein 44.3% 38.7%
Crude Fat 19.0% 15.7%
Crude Fiber 5.1% 3.9%
Wet/Canned Cat Food Nulo Castor & Pollux
Crude Protein 52.8% 42.6%
Crude Fat 24.7% 20.3%
Crude Fiber 4.5% 5.7%

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.

Our analysis shows that Nulo guarantees 5.69% more protein than Castor & Pollux dry cat food recipes. In addition, Nulo wet cat foods also provide more protein than Castor & Pollux wet foods.


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.

According to our average data, Castor & Pollux typically provides less fat than Nulo. However, this difference is relatively small and doesn't represent a significant difference between the two brands. In addition, Nulo wet cat foods also provide more fat than Castor & Pollux wet foods.


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

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

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

Canola Oil (Preserved With Mixed Tocopherols And Citric Acid)

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)

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

According to our records, neither brand has issued any product recalls. Therefore, consumers have no reason to question the safety of Nulo or Castor & Pollux pet food products.

Price Comparison: Which Brand Is More Expensive?

Dry Dog Food Nulo Castor & Pollux
Per Pound $12.21 $4.03
Per Calorie $0.0064 $0.0025
Dry Cat Food Nulo Castor & Pollux
Per Pound $3.22 $5.19
Per Calorie $0.0019 $0.0032
Wet Dog Food Nulo Castor & Pollux
Per Pound $3.27 $4.81
Per Calorie $0.0059 $0.0099
Wet Cat Food Nulo Castor & Pollux
Per Pound $5.86 $6.16
Per Calorie $0.0128 $0.0121

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 Nulo 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 Nulo 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 Nulo and Castor & Pollux. In addition, we currently have some great coupons for our readers.


Disclosure: PawDiet has an affiliate relationship with retailers featured in this article. We are compensated for referring customers. Thank you for shopping with our retail partners!

Where To Buy Nulo and Castor & Pollux Pet Foods

You can purchase Nulo pet foods from the following stores:


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

 

Type Of Pet Foods Available

Product Nulo Castor & Pollux
Dry Dog Food 17 Recipes 19 Recipes
Wet Dog Food 10 Recipes 30 Recipes
Dog Treats 8 Treats 25 Treats
Dry Cat Food 11 Recipes 5 Recipes
Wet Cat Food 24 Recipes 15 Recipes
Cat Treats 1 Treats

Compare Nulo To

Compare Castor & Pollux To

Recall Alerts By SMS

Text Start To Our
Toll-Free Number

(844) 402-3335

Compare Pet Food Prices Across Multiple Pet Stores