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Diamond vs Merrick

Diamond vs. Merrick

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

Guaranteed Analysis: Merrick vs. Diamond

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.

Diamond Dog Food vs. Merrick Dog Food

Dry Dog Food Diamond Merrick
Crude Protein 27.6% 37.2%
Crude Fat 16.7% 17.0%
Crude Fiber 4.5% 4.3%
Wet/Canned Dog Food Diamond Merrick
Crude Protein 43.9% 43.8%
Crude Fat 25.8% 20.9%
Crude Fiber 4.5% 8.6%

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.

On average, Merrick dry dog food recipes contain 9.60% more protein than Diamond recipes. Clearly, there is a significant difference between the protein content of Diamond and Merrick. For wet dog foods, Diamond and Merrick provide roughly the same amount of protein.


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.

As you can see, Diamond and Merrick guarantee a similar amount of crude fat. For wet dog foods, Diamond provides more fat (about 4.84% more).


Merrick and Diamond both provide roughly the same amount of crude fiber. For wet dog foods, Merrick provides more fiber (about 4.06% more).

Diamond Cat Food vs. Merrick Cat Food

Dry Cat Food Diamond Merrick
Crude Protein 36.7% 40.7%
Crude Fat 17.6% 15.7%
Crude Fiber 5.2% 5.0%
Wet/Canned Cat Food Diamond Merrick
Crude Protein 44.7% 47.0%
Crude Fat 22.0% 21.8%
Crude Fiber 6.1% 5.9%

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.

The table shows that Diamond provides far less protein than Merrick. The difference in protein content is roughly 4.06%. For wet cat foods, Merrick typically provides a little more protein (about 2.35% 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):

  • 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.

There is a relatively insignificant difference between the crude fat content of the two brands. With regards to wet cat food, Diamond and Merrick also provide roughly the same amount of crude fat.


Both brands provide roughly the same amount of crude fiber. With regards to wet cat food, Diamond and Merrick also provide roughly the same amount of crude fiber.

Diamond Pet Food Ingredients vs. Merrick Pet Food Ingredients

Diamond and Merrick both use the following controversial ingredients in many of their products:

Canola Oil
Powdered Cellulose
Canola Oil (Preserved With Mixed Tocopherols)

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

Meat Meal
Ground Corn
Brewers Rice
Tomato Pomace
Beef By-Products
Corn Gluten Meal
Chicken By-Product Meal
Ground Whole Grain Corn
Poultry By-Product Meal

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

Garlic
Pea Protein
Caramel Color
Meaty Femur Bone

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 Diamond.

Menadione Sodium Bisulfite

Product Safety: Recall History of Diamond & Merrick?

Diamond has been recalled once.

  • March 10, 2013: low level of thiamine (Vitamin B1)

Merrick has been recalled 6 times.

  • Jan. 28, 2011: Salmonella
  • Aug. 8, 2011: Salmonella
  • July 2, 2010: Salmonella
  • Aug. 3, 2010: Salmonella
  • Aug. 13, 2010: Salmonella
  • May 23, 2018: elevated levels of beef thyroid hormone

Price Comparison: Which Brand Is More Expensive?

Dry Dog Food Diamond Merrick
Per Pound $1.30 $4.84
Per Calorie $0.0008 $0.0028
Dry Cat Food Diamond Merrick
Per Pound $1.87 $7.32
Per Calorie $0.0012 $0.0043
Wet Dog Food Diamond Merrick
Per Pound $2.10 $4.63
Per Calorie $0.0037 $0.0106
Wet Cat Food Diamond Merrick
Per Pound $3.01 $5.94
Per Calorie $0.0058 $0.0126

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 Diamond or Merrick, 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 Diamond or Merrick will depend on your shopping habits.

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

You can purchase Diamond pet foods from the following stores:


43 Recipes In-Stock Today

28 Recipes In-Stock Today

31 Recipes In-Stock Today

Where To Buy Merrick Pet Foods

You can purchase Merrick pet food products from these retailers:


173 Recipes In-Stock Today

166 Recipes In-Stock Today

148 Recipes In-Stock Today

21 Recipes In-Stock Today


Type Of Pet Foods Available

Product Diamond Merrick
Dry Dog Food 27 Recipes 38 Recipes
Wet Dog Food 3 Recipes 51 Recipes
Dog Treats 6 Treats 29 Treats
Dry Cat Food 6 Recipes 17 Recipes
Wet Cat Food 3 Recipes 45 Recipes
Cat Treats

Compare Pet Food Prices Across Multiple Pet Stores