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Open Farm vs Purina One

Open Farm vs. Purina One

In this comparison article for Open Farm vs Purina One, we'll highlight the key differences between these two pet food brands. To properly compare Open Farm and Purina One, 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 Purina One 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 Purina One Review Page.

Guaranteed Analysis: Purina One 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. Purina One Dog Food

Dry Dog Food Open Farm Purina One
Crude Protein 38.2% 31.6%
Crude Fat 25.5% 17.2%
Crude Fiber 4.6% 4.3%
Wet/Canned Dog Food Open Farm Purina One
Crude Protein 44.4% 45.3%
Crude Fat 31.9% 25.8%
Crude Fiber 11.1% 7.1%

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 Open Farm guarantees 6.64% more protein than Purina One dry dog food recipes. For wet dog foods, Purina One and Open Farm 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.

When you look at the average percentages of crude fat for dry dog food, it's clear that Open Farm provides significantly more fat. On average, Open Farm guarantees about 8.28% more protein than Purina One. For wet dog foods, Open Farm provides more fat (about 6.10% more).


Purina One and Open Farm both provide roughly the same amount of crude fiber. For wet dog foods, Open Farm typically provides a little more fiber (about 3.97% more).

Open Farm Cat Food vs. Purina One Cat Food

Dry Cat Food Open Farm Purina One
Crude Protein 41.1% 40.5%
Crude Fat 20% 15.1%
Crude Fiber 3.3% 3.6%
Wet/Canned Cat Food Open Farm Purina One
Crude Protein 43.5% 55.9%
Crude Fat 29.2% 14.7%
Crude Fiber 11.1% 7.4%

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.

There is a relatively insignificant difference between the crude protein content of the two brands. For wet cat foods, Purina One provides significantly more protein (about 12.36% 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):

  • 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 Purina One. On average, Purina One dry cat food recipes contain 4.89% less fat than Open Farm recipes. In addition, Open Farm wet cat foods also provide more fat than Purina One wet foods.


Both brands provide roughly the same amount of crude fiber. For wet cat foods, Open Farm typically provides a little more fiber (about 3.72% more).

Open Farm Pet Food Ingredients vs. Purina One Pet Food Ingredients

Here are some of the controversial ingredients used only by Purina One.

Liver
Canola Meal
Pea Protein
Brewers Rice
Ground Wheat
Wheat Gluten
Animal Digest
Caramel Color
Soybean Flour
Soybean Hulls
Vegetable Oil
Corn Germ Meal
Corn Gluten Meal
Meat By-Products
Whole Grain Corn
Whole Grain Wheat
Ground Yellow Corn
Powdered Cellulose
Poultry By-Products
Turkey By-Product Meal
Chicken By-Product Meal
Poultry By-Product Meal
Soybean Protein Isolate
Soybean Protein Concentrate
Animal Fat (Preserved With Mixed Tocopherols)

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 Purina One.

Red 3
Corn Oil
Added Color
Menadione Sodium Bisulfite Complex

Product Safety: Recall History of Open Farm & Purina One?

According to our records, Open Farm has never been recalled.

Purina One has been recalled once.

  • Aug. 30, 2013: Salmonella

Price Comparison: Which Brand Is More Expensive?

Dry Dog Food Open Farm Purina One
Per Pound $21.45 $1.41
Per Calorie $0.0024 $0.0008
Dry Cat Food Open Farm Purina One
Per Pound $5.75 $1.75
Per Calorie $0.0033 $0.0010
Wet Dog Food Open Farm Purina One
Per Pound $5.12 $1.67
Per Calorie $0.0118 $0.0033
Wet Cat Food Open Farm Purina One
Per Pound $7.76 $4.82
Per Calorie $0.0188 $0.0113

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 Purina One, 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 Purina One 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 Purina One. 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 Open Farm Pet Foods

You can purchase Open Farm pet foods from the following stores:


31 Recipes In-Stock Today

4 Recipes In-Stock Today

Where To Buy Purina One Pet Foods

You can purchase Purina One pet food products from these retailers:


53 Recipes In-Stock Today

38 Recipes In-Stock Today

52 Recipes In-Stock Today

34 Recipes In-Stock

Type Of Pet Foods Available

Product Open Farm Purina One
Dry Dog Food 5 Recipes 14 Recipes
Wet Dog Food 4 Recipes 15 Recipes
Dog Treats 5 Treats 3 Treats
Dry Cat Food 4 Recipes 11 Recipes
Wet Cat Food 6 Recipes 12 Recipes
Cat Treats

Compare Pet Food Prices Across Multiple Pet Stores