Alpo vs Castor & Pollux

Alpo vs. Castor & Pollux

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

Guaranteed Analysis: Castor & Pollux vs. Alpo

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.

Alpo Dog Food vs. Castor & Pollux Dog Food

Dry Dog Food Alpo Castor & Pollux
Crude Protein 23.7% 33.7%
Crude Fat 8.6% 16.9%
Crude Fiber 6.3% 4.5%
Wet/Canned Dog Food Alpo Castor & Pollux
Crude Protein 47.7% 40.4%
Crude Fat 18.0% 23.3%
Crude Fiber 7.4% 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.

On average, Castor & Pollux dry dog food recipes contain 10.01% more protein than Alpo recipes. Clearly, there is a significant difference between the protein content of Alpo and Castor & Pollux. For wet dog foods, Alpo provides more protein (about 7.24% more).


Crude Fat Comparison For Dog Food

Like protein, fats are an essential part of a dog's body. Fats are needed for the proper development and function of the canine body.

When you look at the average percentages of crude fat for dry dog food, it's clear that Castor & Pollux provides significantly more fat. On average, Castor & Pollux guarantees about 8.33% more protein than Alpo. For wet dog foods, Castor & Pollux provides more fat (about 5.36% more).


As you can see, Castor & Pollux and Alpo guarantee a similar amount of crude fiber. With regards to wet dog food, Alpo and Castor & Pollux also provide roughly the same amount of crude fiber.

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

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

Garlic Powder
Powdered Cellulose

Here are some of the controversial ingredients used only by Alpo.

Liver
Poultry
Corn Syrup
Ground Wheat
Wheat Gluten
Animal Digest
Soybean Flour
Soybean Hulls
Corn Germ Meal
Corn Gluten Meal
Meat By-Products
Ground Yellow Corn
Meat And Bone Meal
Chicken By-Product Meal
Hydrogenated Corn Syrup
High Fructose Corn Syrup
Animal Fat (Preserved With Mixed Tocopherols)

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

Garlic
Caramel
Pea Protein
Tomato Pomace
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 Alpo.

Bha
Bht
Red 3
Blue 1
Blue 2
Red 40
Yellow 5
Yellow 6
Ethoxyquin
Added Color
Red 40 Lake
Yellow 5 Lake
Yellow 6 Lake
Menadione Sodium Bisulfite Complex
Bacon Fat (Preserved With Bha And Citric Acid)

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

According to our records, Alpo 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 Alpo Castor & Pollux
Per Pound $1.30 $4.00
Per Calorie $0.0010 $0.0024
Wet Dog Food Alpo Castor & Pollux
Per Pound $0.93 $4.74
Per Calorie $0.0021 $0.0101

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 Alpo 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 Alpo 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 Alpo 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 Alpo Pet Foods

You can purchase Alpo 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 Alpo Castor & Pollux
Dry Dog Food 4 Recipes 19 Recipes
Wet Dog Food 20 Recipes 30 Recipes
Dog Treats 10 Treats 25 Treats
Dry Cat Food 5 Recipes
Wet Cat Food 15 Recipes
Cat Treats 1 Treats

Compare Pet Food Prices Across Multiple Pet Stores

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