Nulo vs Authority

Nulo vs. Authority

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

Guaranteed Analysis: Authority 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. Authority Dog Food

Dry Dog Food Nulo Authority
Crude Protein 36.9% 28.9%
Crude Fat 20.3% 14.5%
Crude Fiber 5.2% 4.8%
Wet/Canned Dog Food Nulo Authority
Crude Protein 45.7% 40.9%
Crude Fat 32.4% 22.7%
Crude Fiber 5.5% 8.7%

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 7.97% more protein than Authority dry dog food recipes. In addition, Nulo wet dog foods also provide more protein than Authority wet foods.


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 relatively large difference between the fat content of Nulo and Authority. On average, Authority dry dog food recipes contain 5.76% less fat than Nulo recipes. In addition, Nulo wet dog foods also provide more fat than Authority wet foods.


Authority and Nulo both provide roughly the same amount of crude fiber. For wet dog foods, Authority typically provides a little more fiber (about 3.24% more).

Nulo Cat Food vs. Authority Cat Food

Dry Cat Food Nulo Authority
Crude Protein 44.3% 36.9%
Crude Fat 19.0% 15.4%
Crude Fiber 5.1% 6.0%
Wet/Canned Cat Food Nulo Authority
Crude Protein 52.8% 43.5%
Crude Fat 25.9% 22.9%
Crude Fiber 4.5% 10.0%

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.

Authority dry recipes contain 7.43% less protein than Nulo dry recipes. This difference in protein content is a notable difference between Nulo and Authority. In addition, Nulo wet cat foods also provide more protein than Authority 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.

According to our data, Nulo guarantees 3.67% more fat than Authority. Although this difference is relatively small, it's still a notable difference. In addition, Nulo wet cat foods also provide more fat than Authority wet foods.


There is a relatively insignificant difference between the crude fiber content of the two brands. For wet cat foods, Authority provides more fiber (about 5.51% more).

Nulo Pet Food Ingredients vs. Authority 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 Authority.

Corn
Wheat
Caramel
Beet Pulp
Canola Oil
Corn Syrup
Ground Corn
Pea Protein
Brewers Rice
Ground Wheat
Poultry Meal
Wheat Gluten
Caramel Color
Garlic Powder
Vegetable Oil
Corn Gluten Meal
Powdered Cellulose
Refined Corn Syrup
Dried Garlic Powder
Dried Tomato Pomace
Soybean Protein Concentrate
Canola Oil (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 Authority.

Corn Oil
Propylene Glycol
Menadione Sodium Bisulfite Complex

Product Safety: Recall History of Nulo & Authority?

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

Price Comparison: Which Brand Is More Expensive?

Dry Dog Food Nulo Authority
Per Pound $15.09 $1.46
Per Calorie $0.0078 $0.0010
Dry Cat Food Nulo Authority
Per Pound $3.10 $2.31
Per Calorie $0.0019 $0.0014
Wet Dog Food Nulo Authority
Per Pound $3.51 $1.66
Per Calorie $0.0063 $0.0034
Wet Cat Food Nulo Authority
Per Pound $5.69 $2.59
Per Calorie $0.0122 $0.0054

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 Authority, 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 Authority 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 Authority. 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 Authority Pet Foods

You can purchase Authority pet food products from these retailers:




Type Of Pet Foods Available

Product Nulo Authority
Dry Dog Food 17 Recipes 33 Recipes
Wet Dog Food 19 Recipes 23 Recipes
Dog Treats 8 Treats 9 Treats
Dry Cat Food 11 Recipes 18 Recipes
Wet Cat Food 24 Recipes 14 Recipes
Cat Treats

Compare Pet Food Prices Across Multiple Pet Stores

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