Natural Planet vs Hill's Science Diet

Natural Planet vs. Hill's Science Diet

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

Guaranteed Analysis: Hill's Science Diet vs. Natural Planet

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.

Natural Planet Dog Food vs. Hill's Science Diet Dog Food

Dry Dog Food Natural Planet Hill's Science Diet
Crude Protein 27.3% 24.5%
Crude Fat 15.8% 14.8%
Crude Fiber 6.4% 4.3%
Wet/Canned Dog Food Natural Planet Hill's Science Diet
Crude Protein 45.5% 25.8%
Crude Fat 43.2% 17.1%
Crude Fiber 2.3% 3.3%

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 small difference between the protein content of Natural Planet and Hill's Science Diet. We can see that Natural Planet guarantees about 2.79% more protein than Hill's Science Diet. In addition, Natural Planet wet dog foods also provide more protein than Hill's Science Diet wet foods.


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 relatively insignificant difference between the crude fat content of the two brands. For wet dog foods, Natural Planet provides significantly more fat (about 26.11% more).


According to our average data, Hill's Science Diet typically provides less fiber than Natural Planet. However, this difference is relatively small and doesn't represent a significant difference between the two brands. For wet dog foods, Hill's Science Diet and Natural Planet provide roughly the same amount of fiber.

Natural Planet Cat Food vs. Hill's Science Diet Cat Food

Dry Cat Food Natural Planet Hill's Science Diet
Crude Protein 33.3% 35.2%
Crude Fat 15.6% 18.5%
Crude Fiber 6.7% 5.8%
Wet/Canned Cat Food Natural Planet Hill's Science Diet
Crude Protein 45.5% 38.5%
Crude Fat 40.9% 22.0%
Crude Fiber 2.3% 4.4%

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.

Both brands provide roughly the same amount of crude protein. For wet cat foods, Natural Planet provides more protein (about 6.96% 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.

If you look at the average percentages of crude fat, you'll notice that Hill's Science Diet typically guarantees 2.97% more fat. This is a fairly small difference between Hill's Science Diet and Natural Planet, but still worth mentioning. In addition, Natural Planet wet cat foods also provide more fat than Hill's Science Diet wet foods.


As you can see, Hill's Science Diet and Natural Planet guarantee a similar amount of crude fiber. For wet cat foods, Hill's Science Diet typically provides a little more fiber (about 2.10% more).

Natural Planet Pet Food Ingredients vs. Hill's Science Diet Pet Food Ingredients

Natural Planet and Hill's Science Diet both use the following controversial ingredients in many of their products:

Pea Protein
Dried Tomato Pomace

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

Garlic
Organic Pea Protein
Canola Oil (Preserved With Mixed Tocopherols)

Here are some of the controversial ingredients used only by Hill's Science Diet.

Liver
Caramel
Corn Flour
Iron Oxide
Pork Plasma
Poultry Fat
Animal Liver
Brewers Rice
Wheat Gluten
Caramel Color
Tomato Pomace
Beef By-Products
Corn Gluten Meal
Pork By-Products
Whole Grain Corn
Whole Grain Wheat
Powdered Cellulose
Pea Protein Concentrate
Soybean Protein Isolate

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 Hill's Science Diet.

Menadione Sodium Bisulfite Complex

Product Safety: Recall History of Natural Planet & Hill's Science Diet?

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

Hill's Science Diet has been recalled once.

  • Jan. 31, 2019: elevated levels of Vitamin D

Price Comparison: Which Brand Is More Expensive?

Dry Dog Food Natural Planet Hill's Science Diet
Per Pound $2.85 $1.99
Per Calorie $0.0016 $0.0012
Dry Cat Food Natural Planet Hill's Science Diet
Per Pound $3.98 $2.90
Per Calorie $0.0022 $0.0017
Wet Dog Food Natural Planet Hill's Science Diet
Per Pound $4.44 $3.24
Per Calorie $0.0077 $0.0078
Wet Cat Food Natural Planet Hill's Science Diet
Per Pound $7.07 $4.73
Per Calorie $0.0119 $0.0100

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 Natural Planet or Hill's Science Diet, 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 Natural Planet or Hill's Science Diet will depend on your shopping habits.

Pet owners who use our price comparison feature typically save more than 25% off retail prices for Natural Planet and Hill's Science Diet. 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 Natural Planet Pet Foods

You can purchase Natural Planet pet foods from the following stores:





Where To Buy Hill's Science Diet Pet Foods

You can purchase Hill's Science Diet pet food products from these retailers:









Type Of Pet Foods Available

Product Natural Planet Hill's Science Diet
Dry Dog Food 5 Recipes 32 Recipes
Wet Dog Food 2 Recipes 30 Recipes
Dog Treats 1 Treats 15 Treats
Dry Cat Food 1 Recipes 18 Recipes
Wet Cat Food 2 Recipes 39 Recipes
Cat Treats

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