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Iams vs Natural Planet

Iams vs. Natural Planet

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

Guaranteed Analysis: Natural Planet 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. Natural Planet Dog Food

Dry Dog Food Iams Natural Planet
Crude Protein 27.8% 27.3%
Crude Fat 15.1% 15.8%
Crude Fiber 5.1% 6.4%
Wet/Canned Dog Food Iams Natural Planet
Crude Protein 42.0% 45.5%
Crude Fat 24.0% 43.2%
Crude Fiber 5.8% 2.3%

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.

As you can see, Natural Planet and Iams guarantee a similar amount of crude protein. For wet dog foods, Natural Planet typically provides a little more protein (about 3.48% more).


Crude Fat Comparison For Dog Food

Like protein, fats are an essential part of a dog's body. Fats are needed for the proper development and function of the canine body.

Iams and Natural Planet both provide roughly the same amount of crude fat. For wet dog foods, Natural Planet provides significantly more fat (about 19.19% more).


There is a relatively insignificant difference between the crude fiber content of the two brands. For wet dog foods, Iams typically provides a little more fiber (about 3.56% more).

Iams Cat Food vs. Natural Planet Cat Food

Dry Cat Food Iams Natural Planet
Crude Protein 36.0% 33.3%
Crude Fat 16.8% 15.6%
Crude Fiber 4.3% 6.7%
Wet/Canned Cat Food Iams Natural Planet
Crude Protein 50.5% 45.5%
Crude Fat 19.0% 40.9%
Crude Fiber 14.7% 2.3%

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.

If you look at the average percentages of crude protein, you'll notice that Iams typically guarantees 2.69% more protein. This is a fairly small difference between Iams and Natural Planet, but still worth mentioning. In addition, Iams wet cat foods also provide more protein than Natural Planet 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):

  • Help transport nutrients across cell membranes
  • Fats produce metabolites, which help control inflammation
  • Maintain healthy blood pressure
  • Slow the growth of yeast infections
  • Fats improve the taste/texture of food.

Both brands provide roughly the same amount of crude fat. For wet cat foods, Natural Planet provides significantly more fat (about 21.93% more).


According to our data, Natural Planet guarantees 2.36% more fiber than Iams. Although this difference is relatively small, it's still a notable difference. In addition, Iams wet cat foods also provide more fiber than Natural Planet wet foods.

Iams Pet Food Ingredients vs. Natural Planet Pet Food Ingredients

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

Pea Protein

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

Liver
Caramel
Beet Pulp
Corn Meal
Canola Oil
Corn Grits
Iron Oxide
Canola Meal
Fish Digest
Ground Corn
Brewers Rice
Wheat Gluten
Caramel Color
Tomato Pomace
Vegetable Oil
Feeding Oatmeal
Poultry Giblets
Beef By-Products
Corn Gluten Meal
Meat By-Products
Ground Yellow Corn
Powdered Cellulose
Chicken By-Products
Dried Meat By-Products
Chicken By-Product Meal
Ground Whole Grain Corn
Poultry By-Product Meal
Soybean Protein Isolate
Animal Fat (Preserved With Mixed Tocopherols)
Poultry Fat (Preserved With Mixed Tocopherols)

Here are some of the controversial ingredients used only by Natural Planet.

Garlic
Dried Tomato Pomace
Organic Pea Protein
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 Iams.

Blue 2
Red 40
Corn Oil
Yellow 5
Yellow 6
Ethoxyquin
Added Color
Menadione Sodium Bisulfite Complex
Menadione Dimethylpyrimidinol Bisulfite

Product Safety: Recall History of Iams & Natural Planet?

Iams has been recalled 2 times.

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

According to our records, Natural Planet has never been recalled.

Price Comparison: Which Brand Is More Expensive?

Dry Dog Food Iams Natural Planet
Per Pound $1.34 $2.91
Per Calorie $0.0008 $0.0017
Dry Cat Food Iams Natural Planet
Per Pound $1.74 $3.47
Per Calorie $0.0010 $0.0019
Wet Dog Food Iams Natural Planet
Per Pound $1.72 $4.11
Per Calorie $0.0035 $0.0071
Wet Cat Food Iams Natural Planet
Per Pound $5.72 $7.01
Per Calorie $0.0110 $0.0116

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 Iams or Natural Planet, 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 Iams or Natural Planet will depend on your shopping habits.

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

You can purchase Iams pet foods from the following stores:


39 Recipes In-Stock Today

28 Recipes In-Stock Today

28 Recipes In-Stock Today

1 Recipes In-Stock Today

Where To Buy Natural Planet Pet Foods

You can purchase Natural Planet pet food products from these retailers:


8 Recipes In-Stock Today

8 Recipes In-Stock Today

Type Of Pet Foods Available

Product Iams Natural Planet
Dry Dog Food 29 Recipes 5 Recipes
Wet Dog Food 10 Recipes 2 Recipes
Dog Treats 1 Treats
Dry Cat Food 12 Recipes 1 Recipes
Wet Cat Food 31 Recipes 2 Recipes
Cat Treats 2 Treats

Compare Pet Food Prices Across Multiple Pet Stores