Nulo vs NutriSource

Nulo vs. NutriSource

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

Guaranteed Analysis: NutriSource 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. NutriSource Dog Food

Dry Dog Food Nulo NutriSource
Crude Protein 36.9% 29.5%
Crude Fat 20.3% 16.9%
Crude Fiber 5.2% 7.1%
Wet/Canned Dog Food Nulo NutriSource
Crude Protein 45.7% 44.7%
Crude Fat 32.4% 34.1%
Crude Fiber 5.5% 6.8%

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.

The table shows that NutriSource provides far less protein than Nulo. The difference in protein content is roughly 7.39%. For wet dog foods, Nulo and NutriSource provide roughly the same amount of protein.


Crude Fat Comparison For Dog Food

Like protein, fats are an essential part of a dog's body. Fats are needed for the proper development and function of the canine body.

If you look at the average percentages of crude fat, you'll notice that Nulo typically guarantees 3.43% more fat. This is a fairly small difference between Nulo and NutriSource, but still worth mentioning. For wet dog foods, NutriSource and Nulo provide roughly the same amount of fat.


As you can see, Nulo and NutriSource guarantee a similar amount of crude fiber. With regards to wet dog food, NutriSource and Nulo also provide roughly the same amount of crude fiber.

Nulo Cat Food vs. NutriSource Cat Food

Dry Cat Food Nulo NutriSource
Crude Protein 44.3% 36.7%
Crude Fat 19.0% 17.6%
Crude Fiber 5.1% 8.2%
Wet/Canned Cat Food Nulo NutriSource
Crude Protein 52.8% 46.8%
Crude Fat 25.9% 33.8%
Crude Fiber 4.5% 5.0%

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.

Our analysis shows that Nulo guarantees 7.68% more protein than NutriSource dry cat food recipes. In addition, Nulo wet cat foods also provide more protein than NutriSource 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):

  • Help transport nutrients across cell membranes
  • Fats produce metabolites, which help control inflammation
  • Maintain healthy blood pressure
  • Slow the growth of yeast infections
  • Fats improve the taste/texture of food.

NutriSource and Nulo both provide roughly the same amount of crude fat. For wet cat foods, NutriSource provides more fat (about 7.88% more).


According to our data, NutriSource guarantees 3.12% more fiber than Nulo. Although this difference is relatively small, it's still a notable difference. For wet cat foods, NutriSource and Nulo provide roughly the same amount of fiber.

Nulo Pet Food Ingredients vs. NutriSource 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 NutriSource.

White Rice
Pea Protein
Brewers Rice
Dried Tomato Pomace

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 NutriSource.

Menadione Sodium Bisulfite Complex

Product Safety: Recall History of Nulo & NutriSource?

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

Price Comparison: Which Brand Is More Expensive?

Dry Dog Food Nulo NutriSource
Per Pound $15.60 $2.19
Per Calorie $0.0081 $0.0012
Dry Cat Food Nulo NutriSource
Per Pound $3.75 $2.57
Per Calorie $0.0023 $0.0015
Wet Dog Food Nulo NutriSource
Per Pound $3.98 $2.83
Per Calorie $0.0072 $0.0054
Wet Cat Food Nulo NutriSource
Per Pound $6.74 $4.81
Per Calorie $0.0146 $0.0095

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 NutriSource, 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 NutriSource 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 NutriSource. 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 NutriSource Pet Foods

You can purchase NutriSource pet food products from these retailers:





Type Of Pet Foods Available

Product Nulo NutriSource
Dry Dog Food 17 Recipes 29 Recipes
Wet Dog Food 19 Recipes 12 Recipes
Dog Treats 8 Treats 9 Treats
Dry Cat Food 11 Recipes 5 Recipes
Wet Cat Food 24 Recipes 14 Recipes
Cat Treats

Compare Pet Food Prices Across Multiple Pet Stores

Compare Nulo To

Compare NutriSource To

Brands Similar To

Ingredient Reviews