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Open Farm vs. Castor & Pollux
In this comparison article for Open Farm vs Castor & Pollux, we'll highlight the key differences between these two pet food brands. To properly compare Open Farm 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 Open Farm comparison, we've utilized average data to make general comparisons. If you'd like to see individual product reviews, visit our Open Farm Review Page or Castor & Pollux Review Page.
Guaranteed Analysis: Castor & Pollux vs. Open Farm
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.
Open Farm Dog Food vs. Castor & Pollux Dog Food
| Dry Dog Food | Open Farm | Castor & Pollux |
| Crude Protein | 34.0% | 32.6% |
| Crude Fat | 20.9% | 17.1% |
| Crude Fiber | 5.1% | 4.2% |
| Wet/Canned Dog Food | Open Farm | Castor & Pollux |
| Crude Protein | 40.0% | 39.9% |
| Crude Fat | 31.0% | 23.5% |
| Crude Fiber | 9.7% | 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.
There is a relatively insignificant difference between the crude protein content of the two brands. With regards to wet dog food, Open Farm and Castor & Pollux also provide roughly the same amount of crude 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.
There is a small difference between the fat content of Open Farm and Castor & Pollux. We can see that Open Farm guarantees about 3.83% more fat than Castor & Pollux. In addition, Open Farm wet dog foods also provide more fat than Castor & Pollux wet foods.
Both brands provide roughly the same amount of crude fiber. For wet dog foods, Open Farm typically provides a little more fiber (about 3.23% more).
Open Farm Cat Food vs. Castor & Pollux Cat Food
| Dry Cat Food | Open Farm | Castor & Pollux |
| Crude Protein | 41.1% | 38.2% |
| Crude Fat | 20% | 15.7% |
| Crude Fiber | 3.3% | 4.0% |
| Wet/Canned Cat Food | Open Farm | Castor & Pollux |
| Crude Protein | 43.5% | 43.3% |
| Crude Fat | 29.2% | 20.4% |
| Crude Fiber | 11.1% | 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.
According to our average data, Castor & Pollux typically provides less protein than Open Farm. However, this difference is relatively small and doesn't represent a significant difference between the two brands. For wet cat foods, Open Farm and Castor & Pollux provide roughly the same amount of 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.
There is a relatively large difference between the fat content of Open Farm and Castor & Pollux. On average, Castor & Pollux dry cat food recipes contain 4.27% less fat than Open Farm recipes. In addition, Open Farm wet cat foods also provide more fat than Castor & Pollux wet foods.
As you can see, Open Farm and Castor & Pollux guarantee a similar amount of crude fiber. For wet cat foods, Open Farm provides more fiber (about 5.37% more).
Open Farm Pet Food Ingredients vs. Castor & Pollux Pet Food Ingredients
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 Open Farm & Castor & Pollux?
According to our records, Open Farm 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 | Open Farm | Castor & Pollux |
| Per Pound | $12.03 | $5.01 |
| Per Calorie | $0.0058 | $0.0030 |
| Dry Cat Food | Open Farm | Castor & Pollux |
| Per Pound | $5.92 | $5.50 |
| Per Calorie | $0.0034 | $0.0033 |
| Wet Dog Food | Open Farm | Castor & Pollux |
| Per Pound | $5.12 | $8.32 |
| Per Calorie | $0.0119 | $0.0182 |
| Wet Cat Food | Open Farm | Castor & Pollux |
| Per Pound | $7.83 | $9.65 |
| Per Calorie | $0.0188 | $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 Open Farm 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 Open Farm 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 Open Farm and Castor & Pollux. In addition, we currently have some great coupons for our readers.
- 20% Off First Auto-Ship @ PetFlow (Use Code PAWDIET20)
- 35% Off First Auto-Ship @ Chewy (No Code Required)
- 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 Open Farm Pet Foods
You can purchase Open Farm 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 | Open Farm | Castor & Pollux |
| Dry Dog Food | 17 Recipes | 17 Recipes |
| Wet Dog Food | 8 Recipes | 28 Recipes |
| Dog Treats | 5 Treats | 22 Treats |
| Dry Cat Food | 4 Recipes | 6 Recipes |
| Wet Cat Food | 6 Recipes | 18 Recipes |
| Cat Treats | None | 1 Treats |
Top Rated Open Farm Recipes
Top Rated Castor & Pollux Recipes
