Nulo vs Open Farm

Nulo vs. Open Farm

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

Guaranteed Analysis: Open Farm 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. Open Farm Dog Food

Dry Dog Food Nulo Open Farm
Crude Protein 36.9% 38.3%
Crude Fat 20.3% 25.5%
Crude Fiber 5.2% 4.6%
Wet/Canned Dog Food Nulo Open Farm
Crude Protein 45.5% 44.4%
Crude Fat 34.5% 31.9%
Crude Fiber 4.5% 11.1%

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.

Nulo and Open Farm both provide roughly the same amount of crude protein. With regards to wet dog food, Nulo and Open Farm 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.

Our analysis shows that Open Farm guarantees 5.20% more fat than Nulo dry dog food recipes. For wet dog foods, Nulo typically provides a little more fat (about 2.60% more).


There is a relatively insignificant difference between the crude fiber content of the two brands. For wet dog foods, Open Farm provides more fiber (about 6.57% more).

Nulo Cat Food vs. Open Farm Cat Food

Dry Cat Food Nulo Open Farm
Crude Protein 44.3% 41.1%
Crude Fat 19.0% 20%
Crude Fiber 5.1% 3.3%
Wet/Canned Cat Food Nulo Open Farm
Crude Protein 52.8% 43.5%
Crude Fat 25.9% 29.2%
Crude Fiber 4.5% 11.1%

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.

According to our data, Nulo guarantees 3.23% more protein than Open Farm. Although this difference is relatively small, it's still a notable difference. In addition, Nulo wet cat foods also provide more protein than Open Farm 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.

Both brands provide roughly the same amount of crude fat. For wet cat foods, Open Farm typically provides a little more fat (about 3.28% more).


As you can see, Open Farm and Nulo guarantee a similar amount of crude fiber. For wet cat foods, Open Farm provides more fiber (about 6.63% more).

Nulo Pet Food Ingredients vs. Open Farm Pet Food Ingredients

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

Canola Oil (Preserved With Mixed Tocopherols And Citric Acid)

Product Safety: Recall History of Nulo & Open Farm?

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

Price Comparison: Which Brand Is More Expensive?

Dry Dog Food Nulo Open Farm
Per Pound $14.42 $17.99
Dry Cat Food Nulo Open Farm
Per Pound $3.21 $5.98
Wet Dog Food Nulo Open Farm
Per Pound $3.49 $5.12
Per Calorie $0.0054 $0.0114
Wet Cat Food Nulo Open Farm
Per Pound $5.70 $7.76
Per Calorie $0.0123 $0.0192

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 Open Farm, 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 Open Farm 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 Open Farm. 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 Nulo Pet Foods

You can purchase Nulo pet foods from the following stores:







Where To Buy Open Farm Pet Foods

You can purchase Open Farm pet food products from these retailers:






Type Of Pet Foods Available

Product Nulo Open Farm
Dry Dog Food 17 Recipes 5 Recipes
Wet Dog Food 19 Recipes 4 Recipes
Dog Treats 8 Treats 5 Treats
Dry Cat Food 11 Recipes 4 Recipes
Wet Cat Food 24 Recipes 6 Recipes
Cat Treats

Compare Pet Food Prices Across Multiple Pet Stores

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