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Nutro vs Iams

Nutro vs. Iams

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

Guaranteed Analysis: Iams vs. Nutro

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.

Nutro Dog Food vs. Iams Dog Food

Dry Dog FoodNutroIams
Crude Protein27.0%27.6%
Crude Fat15.3%14.9%
Crude Fiber4.7%5.2%
Wet/Canned Dog FoodNutroIams
Crude Protein42.6%40.9%
Crude Fat24.2%23.4%
Crude Fiber6.1%5.4%

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, Nutro 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, Nutro and Iams also provide roughly the same amount of crude fat.


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

Nutro Cat Food vs. Iams Cat Food

Dry Cat FoodNutroIams
Crude Protein37.3%35.7%
Crude Fat17.2%15.9%
Crude Fiber5.9%4.6%
Wet/Canned Cat FoodNutroIams
Crude Protein54.8%46.7%
Crude Fat23.1%21.8%
Crude Fiber5.1%4.9%

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 Nutro both provide roughly the same amount of crude protein. For wet cat foods, Nutro provides significantly more protein (about 8.14% 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.

Nutro Pet Food Ingredients vs. Iams Pet Food Ingredients

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

Iron Oxide
Pea Protein
Brewers Rice
Wheat Gluten
Caramel Color
Vegetable Oil
Feeding Oatmeal
Powdered Cellulose
Dried Tomato Pomace

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

Bone Broth
Pork Plasma
Whole Wheat
Animal Plasma
Tomato Pomace
Dried Corn Syrup
Pea Protein Isolate
Canola Oil (Preserved With Mixed Tocopherols)

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

Liver
Caramel
Beet Pulp
Corn Meal
Canola Oil
Corn Grits
Fish Digest
Ground Corn
Poultry Giblets
Corn Gluten Meal
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)

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

Nutro and Iams 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

Product Safety: Recall History of Nutro & Iams?

Nutro has been recalled 4 times.

  • Sept. 30, 2009: small pieces of melted plastic
  • Dec. 13, 2015: Mold
  • May 21, 2009: incorrect levels of zinc and potassium
  • March 16, 2007: Melamine

Iams has been recalled 2 times.

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

Price Comparison: Which Brand Is More Expensive?

Dry Dog FoodNutroIams
Per Pound$2.24$1.52
Per Calorie$0.0014$0.0009
Dry Cat FoodNutroIams
Per Pound$3.36$2.03
Per Calorie$0.0020$0.0012
Wet Dog FoodNutroIams
Per Pound$6.55$1.90
Per Calorie$0.0136$0.0038
Wet Cat FoodNutroIams
Per Pound$7.99$6.97
Per Calorie$0.0167$0.0151

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 Nutro or Iams, 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 Nutro or Iams will depend on your shopping habits.

Pet owners who use our price comparison feature typically save more than 25% off retail prices for Nutro and Iams. 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 Nutro Pet Foods

You can purchase Nutro pet foods from the following stores:


68 Recipes In-Stock Today

44 Recipes In-Stock Today

63 Recipes In-Stock Today

Where To Buy Iams Pet Foods

You can purchase Iams pet food products from these retailers:


33 Recipes In-Stock Today

15 Recipes In-Stock Today

24 Recipes In-Stock Today

Type Of Pet Foods Available

ProductNutroIams
Dry Dog Food56 Recipes24 Recipes
Wet Dog Food45 Recipes8 Recipes
Dog Treats12 TreatsNone
Dry Cat Food11 Recipes13 Recipes
Wet Cat Food41 Recipes13 Recipes
Cat TreatsNone2 Treats

Compare Pet Food Prices Across Multiple Pet Stores