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 Food Nutro Iams
Crude Protein 27.3% 27.4%
Crude Fat 15.3% 14.5%
Crude Fiber 4.6% 5.1%
Wet/Canned Dog Food Nutro Iams
Crude Protein 39.8% 42.0%
Crude Fat 23.0% 24.0%
Crude Fiber 5.7% 5.8%

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.

There is a relatively insignificant difference between the crude protein content of the two brands. For wet dog foods, Iams typically provides a little more protein (about 2.16% 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.

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

Nutro Cat Food vs. Iams Cat Food

Dry Cat Food Nutro Iams
Crude Protein 38.8% 36.1%
Crude Fat 17.5% 16.4%
Crude Fiber 5.3% 4.4%
Wet/Canned Cat Food Nutro Iams
Crude Protein 52.8% 50.5%
Crude Fat 23.2% 19.0%
Crude Fiber 5.1% 14.7%

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.

There is a small difference between the protein content of Nutro and Iams. We can see that Nutro guarantees about 2.64% more protein than Iams. In addition, Nutro wet cat foods also provide more protein than Iams 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.

Iams and Nutro both provide roughly the same amount of crude fat. For wet cat foods, Nutro provides more fat (about 4.22% more).


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
Tomato Pomace
Vegetable Oil
Corn Gluten Meal
Powdered Cellulose
Animal Fat (Preserved With Mixed Tocopherols)

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

Pork Plasma
Whole Wheat
Dried Corn Syrup
Ground Whole Wheat
Meat And Bone Meal
Pea Protein Isolate
Semolina Wheat Enriched With Niacin
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
Canola Meal
Fish Digest
Ground Corn
Feeding Oatmeal
Poultry Giblets
Beef By-Products
Meat By-Products
Ground Yellow Corn
Chicken By-Products
Dried Meat By-Products
Chicken By-Product Meal
Ground Whole Grain Corn
Poultry By-Product Meal
Soybean Protein Isolate
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
Corn Oil
Yellow 5
Yellow 6
Ethoxyquin
Added Color
Menadione Dimethylpyrimidinol Bisulfite

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 Food Nutro Iams
Per Pound $2.20 $1.48
Per Calorie $0.0013 $0.0009
Dry Cat Food Nutro Iams
Per Pound $2.90 $1.81
Per Calorie $0.0017 $0.0011
Wet Dog Food Nutro Iams
Per Pound $4.19 $1.81
Per Calorie $0.0116 $0.0036
Wet Cat Food Nutro Iams
Per Pound $6.43 $4.83
Per Calorie $0.0139 $0.0104

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:









Where To Buy Iams Pet Foods

You can purchase Iams pet food products from these retailers:









Type Of Pet Foods Available

Product Nutro Iams
Dry Dog Food 66 Recipes 19 Recipes
Wet Dog Food 51 Recipes 10 Recipes
Dog Treats 25 Treats
Dry Cat Food 25 Recipes 16 Recipes
Wet Cat Food 59 Recipes 31 Recipes
Cat Treats 2 Treats

Compare Pet Food Prices Across Multiple Pet Stores

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