Nulo vs Purina One

Nulo vs. Purina One

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

Guaranteed Analysis: Purina One 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. Purina One Dog Food

Dry Dog Food Nulo Purina One
Crude Protein 36.9% 31.6%
Crude Fat 20.3% 17.1%
Crude Fiber 5.2% 4.3%
Wet/Canned Dog Food Nulo Purina One
Crude Protein 45.5% 45.3%
Crude Fat 34.5% 25.8%
Crude Fiber 4.5% 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 Nulo guarantees 5.28% more protein than Purina One dry dog food recipes. For wet dog foods, Nulo and Purina One 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.

According to our data, Nulo guarantees 3.16% more fat than Purina One. Although this difference is relatively small, it's still a notable difference. In addition, Nulo wet dog foods also provide more fat than Purina One wet foods.


Purina One and Nulo both provide roughly the same amount of crude fiber. For wet dog foods, Purina One typically provides a little more fiber (about 2.59% more).

Nulo Cat Food vs. Purina One Cat Food

Dry Cat Food Nulo Purina One
Crude Protein 44.3% 40.5%
Crude Fat 19.0% 14.5%
Crude Fiber 5.1% 3.6%
Wet/Canned Cat Food Nulo Purina One
Crude Protein 52.8% 55.9%
Crude Fat 25.9% 13.9%
Crude Fiber 4.5% 6.9%

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 small difference between the protein content of Nulo and Purina One. We can see that Nulo guarantees about 3.82% more protein than Purina One. In addition, Purina One wet cat foods also provide more protein than Nulo 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.

There is a relatively large difference between the fat content of Nulo and Purina One. On average, Purina One dry cat food recipes contain 4.50% less fat than Nulo recipes. In addition, Nulo wet cat foods also provide more fat than Purina One wet foods.


There is a relatively insignificant difference between the crude fiber content of the two brands. For wet cat foods, Purina One typically provides a little more fiber (about 2.44% more).

Nulo Pet Food Ingredients vs. Purina One Pet Food Ingredients

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

Canola Oil (Preserved With Mixed Tocopherols And Citric Acid)

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
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 Nulo & Purina One?

According to our records, Nulo has never been recalled.

Purina One has been recalled once.

  • Aug. 30, 2013: Salmonella

Price Comparison: Which Brand Is More Expensive?

Dry Dog Food Nulo Purina One
Per Pound $14.42 $1.43
Per Calorie $0.0075 $0.0008
Dry Cat Food Nulo Purina One
Per Pound $3.21 $1.71
Per Calorie $0.0019 $0.0010
Wet Dog Food Nulo Purina One
Per Pound $3.49 $1.72
Per Calorie $0.0054 $0.0034
Wet Cat Food Nulo Purina One
Per Pound $5.70 $5.12
Per Calorie $0.0123 $0.0122

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 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 Nulo 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 Nulo 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 Nulo Pet Foods

You can purchase Nulo pet foods from the following stores:







Where To Buy Purina One Pet Foods

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









Type Of Pet Foods Available

Product Nulo Purina One
Dry Dog Food 17 Recipes 14 Recipes
Wet Dog Food 19 Recipes 15 Recipes
Dog Treats 8 Treats 3 Treats
Dry Cat Food 11 Recipes 11 Recipes
Wet Cat Food 24 Recipes 12 Recipes
Cat Treats

Compare Pet Food Prices Across Multiple Pet Stores

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