Merrick vs. Purina One
In this comparison article for Merrick vs Purina One, we'll highlight the key differences between these two pet food brands. To properly compare Merrick and Purina One, 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 Purina One vs Merrick comparison, we've utilized average data to make general comparisons. If you'd like to see individual product reviews, visit our Merrick Review Page or Purina One Review Page.
Guaranteed Analysis: Purina One vs. Merrick
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.
Merrick Dog Food vs. Purina One Dog Food
| Dry Dog Food | Merrick | Purina One |
| Crude Protein | 37.2% | 31.6% |
| Crude Fat | 17.0% | 17.2% |
| Crude Fiber | 4.3% | 4.3% |
| Wet/Canned Dog Food | Merrick | Purina One |
| Crude Protein | 43.8% | 45.3% |
| Crude Fat | 20.9% | 25.8% |
| Crude Fiber | 8.6% | 7.1% |
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.
Our analysis shows that Merrick guarantees 5.64% more protein than Purina One dry dog food recipes. For wet dog foods, Purina One and Merrick provide roughly the same amount of protein.
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.
Merrick and Purina One both provide roughly the same amount of crude fat. For wet dog foods, Purina One provides more fat (about 4.93% more).
There is a relatively insignificant difference between the crude fiber content of the two brands. With regards to wet dog food, Merrick and Purina One also provide roughly the same amount of crude fiber.
Merrick Cat Food vs. Purina One Cat Food
| Dry Cat Food | Merrick | Purina One |
| Crude Protein | 40.7% | 40.5% |
| Crude Fat | 15.7% | 15.1% |
| Crude Fiber | 5.0% | 3.6% |
| Wet/Canned Cat Food | Merrick | Purina One |
| Crude Protein | 47.0% | 55.9% |
| Crude Fat | 21.8% | 14.7% |
| Crude Fiber | 5.9% | 7.4% |
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.
Both brands provide roughly the same amount of crude protein. For wet cat foods, Purina One provides significantly more protein (about 8.83% 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.
As you can see, Purina One and Merrick guarantee a similar amount of crude fat. For wet cat foods, Merrick provides more fat (about 7.08% more).
Merrick Pet Food Ingredients vs. Purina One Pet Food Ingredients
Merrick and Purina One both use the following controversial ingredients in many of their products:
Here are some of the controversial ingredients used only by Merrick.
Here are some of the controversial ingredients used only by Purina One.
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 Purina One.
Product Safety: Recall History of Merrick & Purina One?
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
Purina One has been recalled once.
- Aug. 30, 2013: Salmonella
Price Comparison: Which Brand Is More Expensive?
| Dry Dog Food | Merrick | Purina One |
| Per Pound | $4.84 | $1.41 |
| Per Calorie | $0.0028 | $0.0008 |
| Dry Cat Food | Merrick | Purina One |
| Per Pound | $7.32 | $1.75 |
| Per Calorie | $0.0043 | $0.0010 |
| Wet Dog Food | Merrick | Purina One |
| Per Pound | $4.63 | $1.67 |
| Per Calorie | $0.0106 | $0.0033 |
| Wet Cat Food | Merrick | Purina One |
| Per Pound | $5.94 | $4.82 |
| Per Calorie | $0.0126 | $0.0113 |
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 Merrick or Purina One, 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 Merrick or Purina One will depend on your shopping habits.
Pet owners who use our price comparison feature typically save more than 25% off retail prices for Merrick and Purina One. In addition, we currently have some great coupons for our readers.
- $10 Off + Free Shipping Orders $60+ @ PetFlow (Use Code SAVENOW)
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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 Merrick Pet Foods
You can purchase Merrick pet foods from the following stores:
Where To Buy Purina One Pet Foods
You can purchase Purina One pet food products from these retailers:
Type Of Pet Foods Available
| Product | Merrick | Purina One |
| Dry Dog Food | 38 Recipes | 14 Recipes |
| Wet Dog Food | 51 Recipes | 15 Recipes |
| Dog Treats | 29 Treats | 3 Treats |
| Dry Cat Food | 17 Recipes | 11 Recipes |
| Wet Cat Food | 45 Recipes | 12 Recipes |
| Cat Treats |
