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Iams vs Authority

Iams vs. Authority

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

Guaranteed Analysis: Authority vs. Iams

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.

Iams Dog Food vs. Authority Dog Food

Dry Dog FoodIamsAuthority
Crude Protein27.6%28.9%
Crude Fat14.9%14.5%
Crude Fiber5.2%4.8%
Wet/Canned Dog FoodIamsAuthority
Crude Protein40.9%41.4%
Crude Fat23.4%22.8%
Crude Fiber5.4%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 insignificant difference between the crude protein content of the two brands. With regards to wet dog food, Authority and Iams 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.

Both brands provide roughly the same amount of crude fat. With regards to wet dog food, Iams and Authority also provide roughly the same amount of crude fat.


As you can see, Authority and Iams guarantee a similar amount of crude fiber. For wet dog foods, Authority typically provides a little more fiber (about 2.87% more).

Iams Cat Food vs. Authority Cat Food

Dry Cat FoodIamsAuthority
Crude Protein35.7%36.9%
Crude Fat15.9%15.4%
Crude Fiber4.6%6.0%
Wet/Canned Cat FoodIamsAuthority
Crude Protein46.7%43.8%
Crude Fat21.8%23.6%
Crude Fiber4.9%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.

Iams and Authority both provide roughly the same amount of crude protein. For wet cat foods, Iams typically provides a little more protein (about 2.91% more).


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.

Iams Pet Food Ingredients vs. Authority Pet Food Ingredients

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

Caramel
Beet Pulp
Canola Oil
Ground Corn
Pea Protein
Brewers Rice
Wheat Gluten
Caramel Color
Vegetable Oil
Corn Gluten Meal
Powdered Cellulose
Dried Tomato Pomace

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

Liver
Corn Meal
Corn Grits
Iron Oxide
Fish Digest
Feeding Oatmeal
Poultry Giblets
Meat By-Products
Chicken By-Products
Dried Meat By-Products
Chicken By-Product Meal
Ground Whole Grain Corn
Poultry By-Product Meal
Animal Fat (Preserved With Mixed Tocopherols)
Poultry Fat (Preserved With Mixed Tocopherols)

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

Corn
Wheat
Corn Syrup
Animal Liver
Ground Wheat
Poultry Meal
Garlic Powder
Refined Corn Syrup
Dried Garlic Powder
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.

Iams 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 Iams.

Blue 2
Red 40
Yellow 5
Yellow 6
Added Color

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

Corn Oil
Propylene Glycol

Product Safety: Recall History of Iams & Authority?

Iams has been recalled 2 times.

  • Aug. 14, 2013: Salmonella
  • July 30, 2010: Salmonella

According to our records, Authority has never been recalled.


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 Iams Pet Foods

You can purchase Iams pet foods from the following stores:


33 Recipes In-Stock Today

15 Recipes In-Stock Today

24 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

ProductIamsAuthority
Dry Dog Food24 Recipes33 Recipes
Wet Dog Food8 Recipes19 Recipes
Dog TreatsNone6 Treats
Dry Cat Food13 Recipes18 Recipes
Wet Cat Food13 Recipes16 Recipes
Cat Treats2 TreatsNone

Top Rated Iams Recipes

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Minichunks Chicken & Whole Grains Recipe
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Proactive Health Pate With Lamb and Rice
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Proactive Health Healthy Adult With Chicken
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Perfect Portions Salmon Recipe Pate For Healthy Adult Cats
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Top Rated Authority Recipes

Dog Food
Authority
Everyday Health Grain Free + High Performance Turkey, Pea, Duck & Salmon Formula For All Life Stages
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Dog Food
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Skin, Coat + Digestive Health Support Grain Free Fish & Potato Formula (Ground) For Adult Dogs
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Cat Food
Authority
Everyday Health Grain Free + High Protein Turkey, Pea, Duck & Salmon Formula For Adult Indoor Cats
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Cat Food
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Everyday Health Chicken & Liver Entree (Pate) For Kittens
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