NutriSource vs Under The Sun

NutriSource vs. Under The Sun

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

Guaranteed Analysis: Under The Sun vs. NutriSource

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.

NutriSource Dog Food vs. Under The Sun Dog Food

Dry Dog Food NutriSource Under The Sun
Crude Protein 29.5% 27.5%
Crude Fat 16.9% 12.1%
Crude Fiber 7.1% 4.6%
Wet/Canned Dog Food NutriSource Under The Sun
Crude Protein 44.7% 41.1%
Crude Fat 34.1% 24.5%
Crude Fiber 6.8% 6.1%

Crude Protein Comparison For Dog Food

Protein is an extremely important part of your dog's diet. Without sufficient protein, dogs can develop a wide-range of serious health problems.

According to our data, NutriSource guarantees 2.00% more protein than Under The Sun. Although this difference is relatively small, it's still a notable difference. In addition, NutriSource wet dog foods also provide more protein than Under The Sun 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.

Our analysis shows that NutriSource guarantees 4.79% more fat than Under The Sun dry dog food recipes. In addition, NutriSource wet dog foods also provide more fat than Under The Sun wet foods.


There is a small difference between the fiber content of NutriSource and Under The Sun. We can see that NutriSource guarantees about 2.48% more fiber than Under The Sun. For wet dog foods, NutriSource and Under The Sun provide roughly the same amount of fiber.

NutriSource Cat Food vs. Under The Sun Cat Food

Wet/Canned Cat Food NutriSource Under The Sun
Crude Protein 46.8% 46.5%
Crude Fat 33.8% 22.3%
Crude Fiber 5.0% 6.7%

Crude Protein Comparison For Cat Food

Protein is an extremely important part of your cat's diet. Without sufficient protein, cats can develop a wide-range of serious health problems.

As you can see, Under The Sun and NutriSource guarantee a similar amount of crude protein.


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.

On average, NutriSource wet cat food recipes contain 11.43% more fat than Under The Sun recipes. Clearly, there is a significant difference between the fat content of Under The Sun and NutriSource.


NutriSource Pet Food Ingredients vs. Under The Sun Pet Food Ingredients

NutriSource and Under The Sun both use the following controversial ingredients in many of their products:

Pea Protein

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

White Rice
Brewers Rice
Dried Tomato Pomace

Here are some of the controversial ingredients used only by Under The Sun.

Canola Oil

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

NutriSource and Under The Sun 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 Under The Sun.

Menadione Sodium Bisulfate Complex

Product Safety: Recall History of NutriSource & Under The Sun?

According to our records, neither brand has issued any product recalls. Therefore, consumers have no reason to question the safety of NutriSource or Under The Sun pet food products.

Price Comparison: Which Brand Is More Expensive?

Dry Dog Food NutriSource Under The Sun
Per Pound $2.19 $2.07
Per Calorie $0.0012 $0.0014
Wet Dog Food NutriSource Under The Sun
Per Pound $2.83 $5.25
Per Calorie $0.0054 $0.0110
Wet Cat Food NutriSource Under The Sun
Per Pound $4.81 $6.30
Per Calorie $0.0095 $0.0142

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 NutriSource or Under The Sun, 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 NutriSource or Under The Sun will depend on your shopping habits.

Pet owners who use our price comparison feature typically save more than 25% off retail prices for NutriSource and Under The Sun. 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 NutriSource Pet Foods

You can purchase NutriSource pet foods from the following stores:




Where To Buy Under The Sun Pet Foods

You can purchase Under The Sun pet food products from these retailers:






Type Of Pet Foods Available

Product NutriSource Under The Sun
Dry Dog Food 29 Recipes 7 Recipes
Wet Dog Food 12 Recipes 8 Recipes
Dog Treats 9 Treats
Dry Cat Food 5 Recipes
Wet Cat Food 14 Recipes 9 Recipes
Cat Treats

Compare Pet Food Prices Across Multiple Pet Stores

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