Solid Gold vs Castor & Pollux

Solid Gold vs. Castor & Pollux

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

Guaranteed Analysis: Castor & Pollux vs. Solid Gold

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.

Solid Gold Dog Food vs. Castor & Pollux Dog Food

Dry Dog Food Solid Gold Castor & Pollux
Crude Protein 30.3% 33.7%
Crude Fat 14.7% 16.9%
Crude Fiber 5.4% 4.5%
Wet/Canned Dog Food Solid Gold Castor & Pollux
Crude Protein 40.7% 40.4%
Crude Fat 24.5% 23.3%
Crude Fiber 6.4% 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 average data, Solid Gold typically provides less protein than Castor & Pollux. However, this difference is relatively small and doesn't represent a significant difference between the two brands. For wet dog foods, Solid Gold and Castor & Pollux provide roughly the same amount of protein.


Crude Fat Comparison For Dog Food

Dietary fats serves a multitude of roles in the proper development and function of our canine companions. Here are some of the benefits (not exhaustive):

  • Help produce prostaglandins, which reduce inflammation among other critical functions.
  • Aid in the absorption of fat-soluble vitamins
  • Improve skin and coat health
  • Improve the palatially of your dog's food

If you look at the average percentages of crude fat, you'll notice that Castor & Pollux typically guarantees 2.18% more fat. This is a fairly small difference between Castor & Pollux and Solid Gold, but still worth mentioning. For wet dog foods, Solid Gold and Castor & Pollux provide roughly the same amount of fat.


Both brands provide roughly the same amount of crude fiber. With regards to wet dog food, Castor & Pollux and Solid Gold also provide roughly the same amount of crude fiber.

Solid Gold Cat Food vs. Castor & Pollux Cat Food

Dry Cat Food Solid Gold Castor & Pollux
Crude Protein 39.3% 38.7%
Crude Fat 16.7% 15.7%
Crude Fiber 5.3% 3.9%
Wet/Canned Cat Food Solid Gold Castor & Pollux
Crude Protein 54.5% 42.6%
Crude Fat 17.3% 20.3%
Crude Fiber 6.3% 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.

As you can see, Castor & Pollux and Solid Gold guarantee a similar amount of crude protein. For wet cat foods, Solid Gold provides significantly more protein (about 11.93% 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):

  • Aid in the digestion and absorption of fat-soluble vitamins
  • Improve the health of skin/coat
  • Slow the growth of yeast infections
  • Slow the development and spread of certain type of cancers.
  • Maintain healthy blood pressure

Castor & Pollux and Solid Gold both provide roughly the same amount of crude fat. For wet cat foods, Castor & Pollux typically provides a little more fat (about 3.00% more).


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

Solid Gold Pet Food Ingredients vs. Castor & Pollux Pet Food Ingredients

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

Pea Protein
Garlic Powder
Tomato Pomace
Canola Oil (Preserved With Mixed Tocopherols)

Here are some of the controversial ingredients used only by Solid Gold.

Canola Oil
White Rice
Dried Garlic
Vegetable Oil

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

Garlic
Caramel
Powdered Cellulose
Organic Pea Protein
Organic Caramel Color
Organic Garlic Powder
Pea Protein Concentrate
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 Solid Gold.

Menadione Sodium Bisulfate Complex
Menadione Sodium Bisulfite Complex

Product Safety: Recall History of Solid Gold & Castor & Pollux?

Solid Gold has been recalled once.

  • May 8, 2012: Salmonella

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 Solid Gold Castor & Pollux
Per Pound $2.85 $4.00
Per Calorie $0.0017 $0.0024
Dry Cat Food Solid Gold Castor & Pollux
Per Pound $3.34 $4.77
Per Calorie $0.0021 $0.0029
Wet Dog Food Solid Gold Castor & Pollux
Per Pound $4.56 $4.74
Per Calorie $0.0097 $0.0101
Wet Cat Food Solid Gold Castor & Pollux
Per Pound $7.16 $6.43
Per Calorie $0.0158 $0.0137

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 Solid Gold 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 Solid Gold 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 Solid Gold 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 Solid Gold Pet Foods

You can purchase Solid Gold 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 Solid Gold Castor & Pollux
Dry Dog Food 23 Recipes 19 Recipes
Wet Dog Food 15 Recipes 30 Recipes
Dog Treats 7 Treats 25 Treats
Dry Cat Food 10 Recipes 5 Recipes
Wet Cat Food 34 Recipes 15 Recipes
Cat Treats 1 Treats

Compare Pet Food Prices Across Multiple Pet Stores

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