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Merrick vs Authority

Merrick vs. Authority

In this comparison article for Merrick vs Authority, we'll highlight the key differences between these two pet food brands. To properly compare Merrick 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 Merrick comparison, we've utilized average data to make general comparisons. If you'd like to see individual product reviews, visit our Merrick Review Page or Authority Review Page.

Guaranteed Analysis: Authority vs. Merrick

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.

Merrick Dog Food vs. Authority Dog Food

Dry Dog Food Merrick Authority
Crude Protein 35.9% 28.9%
Crude Fat 17.2% 14.5%
Crude Fiber 4.2% 4.8%
Wet/Canned Dog Food Merrick Authority
Crude Protein 43.9% 41.4%
Crude Fat 21.0% 22.8%
Crude Fiber 8.3% 8.3%

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.

There is a relatively large difference between the protein content of Merrick and Authority. On average, Authority dry dog food recipes contain 6.98% less protein than Merrick recipes. For wet dog foods, Merrick typically provides a little more protein (about 2.51% more).


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 small difference between the fat content of Merrick and Authority. We can see that Merrick guarantees about 2.65% more fat than Authority. For wet dog foods, Authority and Merrick provide roughly the same amount of fat.


There is a relatively insignificant difference between the crude fiber content of the two brands. With regards to wet dog food, Merrick and Authority also provide roughly the same amount of crude fiber.

Merrick Cat Food vs. Authority Cat Food

Dry Cat Food Merrick Authority
Crude Protein 40.5% 36.9%
Crude Fat 15.7% 15.4%
Crude Fiber 5.1% 6.0%
Wet/Canned Cat Food Merrick Authority
Crude Protein 46.9% 43.8%
Crude Fat 21.3% 23.6%
Crude Fiber 6.0% 9.2%

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.

According to our average data, Authority typically provides less protein than Merrick. However, this difference is relatively small and doesn't represent a significant difference between the two brands. In addition, Merrick 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.

Both brands provide roughly the same amount of crude fat. For wet cat foods, Authority typically provides a little more fat (about 2.34% more).


As you can see, Merrick and Authority guarantee a similar amount of crude fiber. For wet cat foods, Authority typically provides a little more fiber (about 3.15% more).

Merrick Pet Food Ingredients vs. Authority Pet Food Ingredients

Merrick and Authority both use the following controversial ingredients in many of their products:

Canola Oil
Pea Protein
Caramel Color
Powdered Cellulose
Canola Oil (Preserved With Mixed Tocopherols)

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

Garlic
Meaty Femur Bone

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

Corn
Wheat
Caramel
Beet Pulp
Corn Syrup
Ground Corn
Animal Liver
Brewers Rice
Ground Wheat
Poultry Meal
Wheat Gluten
Garlic Powder
Vegetable Oil
Corn Gluten Meal
Refined Corn Syrup
Dried Garlic Powder
Dried Tomato Pomace
Soybean Protein Concentrate

We believe that certain pet food ingredients are linked to adverse health affects; these ingredients are classified as harmful.

Merrick and Authority both use the following harmful ingredients in many of their products:

Menadione Sodium Bisulfite Complex

Here are some of the harmful ingredients used only by Authority.

Corn Oil
Propylene Glycol

Product Safety: Recall History of Merrick & Authority?

Merrick has been recalled 6 times.

  • Jan. 28, 2011: Salmonella
  • Aug. 8, 2011: Salmonella
  • July 2, 2010: Salmonella
  • Aug. 3, 2010: Salmonella
  • Aug. 13, 2010: Salmonella
  • May 23, 2018: elevated levels of beef thyroid hormone

According to our records, Authority has never been recalled.

Price Comparison: Which Brand Is More Expensive?

Dry Dog Food Merrick Authority
Per Pound $4.61 $1.57
Per Calorie $0.0028 $0.0010
Dry Cat Food Merrick Authority
Per Pound $3.63 $2.50
Per Calorie $0.0023 $0.0015
Wet Dog Food Merrick Authority
Per Pound $4.69 $1.66
Per Calorie $0.0104 $0.0034
Wet Cat Food Merrick Authority
Per Pound $6.12 $2.59
Per Calorie $0.0135 $0.0052

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 Merrick 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 Merrick 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 Merrick 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 Merrick Pet Foods

You can purchase Merrick pet foods from the following stores:


167 Recipes In-Stock Today

142 Recipes In-Stock Today

133 Recipes In-Stock Today

21 Recipes In-Stock Today

Where To Buy Authority Pet Foods

You can purchase Authority pet food products from these retailers:


Type Of Pet Foods Available

Product Merrick Authority
Dry Dog Food 53 Recipes 33 Recipes
Wet Dog Food 58 Recipes 19 Recipes
Dog Treats 35 Treats 6 Treats
Dry Cat Food 18 Recipes 18 Recipes
Wet Cat Food 50 Recipes 16 Recipes
Cat Treats

Compare Pet Food Prices Across Multiple Pet Stores