According to Gram Research analysis, the type of protein in dog food—such as chicken versus peas—influences what dog owners buy far more than the amount of protein, with chicken being the strongest purchasing driver. A 2026 survey of 691 dog owners found that only 18% correctly understood what protein quality means, yet protein source had significantly greater influence on purchasing decisions than protein percentage. Owners who accurately understood protein quality actually preferred lower-protein foods, suggesting that better nutrition education could change purchasing behavior.
A new study of nearly 700 dog owners reveals that the source of protein—whether it’s chicken, chicken meal, or peas—matters far more to pet owners’ purchasing decisions than the amount of protein in the food. Researchers found that most dog owners don’t fully understand what makes protein “high quality,” yet they still make choices based on protein type. Interestingly, owners who correctly understood protein quality actually preferred lower-protein foods, suggesting that better education about dog nutrition could change how people shop for pet food.
Key Statistics
A 2026 survey of 691 U.S. dog owners found that chicken as a protein source had the greatest influence on dog food purchases, followed by chicken meal, with these factors mattering far more than whether the food contained 20% or 35% protein.
Only 18% of the 691 dog owners surveyed could correctly define protein quality as the ability of an ingredient to meet a dog’s amino acid requirements, while 30% incorrectly believed that more protein automatically means better quality.
Among the 691 dog owners in the study, those who correctly understood protein quality were negatively influenced by high-protein foods (35% protein), preferring lower-protein options instead, suggesting that nutrition education changes purchasing decisions.
In a 2026 choice experiment with 691 dog owners, protein source had significantly stronger influence on purchasing decisions than protein amount, with chicken and chicken meal driving choices more than the difference between 20% and 35% protein content.
The Quick Take
- What they studied: How dog owners decide which dog food to buy based on protein type and protein amount, and whether owners understand what makes protein ‘good quality’
- Who participated: 691 dog owners from across the United States who completed a survey and made choices between different dog food options
- Key finding: Chicken as a protein source had the strongest influence on dog food purchases, followed by chicken meal. The amount of protein (20% versus 35%) mattered much less than what type of protein it was
- What it means for you: If you buy dog food, the ingredient list (especially the protein source) probably influences your choice more than the protein percentage on the label. Understanding what protein quality actually means could help you make better choices for your dog’s health
The Research Details
Researchers surveyed 691 dog owners across the United States using an online platform. Each person answered 60 questions about their dog feeding habits and beliefs about protein. The key part of the study involved 12 “choice experiments” where owners had to pick between different dog food options.
In these choice experiments, the dog foods varied in three ways: the protein source (chicken, chicken meal, or peas), the protein amount (20% or 35%), and the price ($80, $95, or $110). This setup let researchers see which factors mattered most when owners made purchasing decisions.
The researchers also asked owners to define what “protein quality” means. This was important because it showed whether owners actually understood the concept or were just responding to marketing language.
This research approach is valuable because it shows what dog owners actually do when making real purchasing decisions, rather than just what they say they believe. By using choice experiments, researchers could measure the actual influence of different factors without relying on owners’ self-reported behavior, which is often inaccurate. Understanding these purchasing patterns helps reveal whether marketing claims about protein are actually based on nutritional knowledge or just brand recognition.
This study is a well-designed survey with a large sample size (691 participants), which makes the findings fairly reliable. The use of choice experiments is a strong research method that captures real decision-making. However, the study only surveyed dog owners in the United States, so results may not apply to other countries. Additionally, the study didn’t actually test whether dogs performed better on different protein sources—it only measured what owners chose to buy.
What the Results Show
Chicken had the strongest influence on dog food purchases, meaning owners were most likely to choose foods listing chicken as the protein source. Chicken meal came in second place, and peas came in last. When comparing protein amounts, owners preferred 35% protein over 20% protein—but this effect was much weaker than the preference for specific protein sources.
When researchers looked at owners who correctly understood what protein quality means (only 18% of the group), something interesting happened: these knowledgeable owners actually preferred lower-protein foods (20% instead of 35%). This suggests that better understanding of nutrition leads to different purchasing choices.
The majority of dog owners (30%) believed that more protein automatically means better protein quality, which is incorrect. Only 18% could accurately define protein quality as the ability of a protein to provide all the amino acids a dog needs. This gap between perception and reality likely explains why marketing claims about “high protein” are so effective.
The study found that owners who correctly defined protein quality were influenced positively by all protein sources (chicken, chicken meal, and peas), suggesting they didn’t have strong brand preferences. However, these knowledgeable owners were actually turned off by the 35% protein option, preferring the 20% protein level. This interaction between knowledge and preference is important because it shows that education could shift purchasing patterns. Price also played a role, though the study focused more on protein factors than cost.
Previous research has shown that marketing claims like “high protein” strongly influence pet food purchases, but this study goes deeper by asking whether owners actually understand what makes protein valuable. The finding that protein source matters more than quantity aligns with some nutritional science, but contradicts the common marketing message that “more protein is better.” This research fills an important gap by showing that most dog owners don’t distinguish between protein quality and quantity, making them vulnerable to misleading marketing.
The study only measured what dog owners said they would choose, not what they actually bought in stores. It also didn’t test whether dogs actually performed better on different protein sources or amounts—it only measured human purchasing behavior. The survey included only U.S. dog owners, so results may differ in other countries with different marketing practices or cultural preferences. Additionally, the study didn’t account for other factors that influence dog food purchases, such as brand loyalty, veterinary recommendations, or budget constraints.
The Bottom Line
If you buy dog food, focus on the protein source (the specific ingredient) rather than just the percentage number on the label. Look for named protein sources like chicken or fish rather than vague terms. Consider learning more about what protein quality actually means for dogs, as this knowledge appears to lead to better purchasing decisions. Don’t assume that 35% protein is automatically better than 20% protein—the right amount depends on your individual dog’s age, activity level, and health status. Talk to your veterinarian about what protein level is appropriate for your dog rather than relying on marketing claims.
This research matters most to dog owners who want to make informed decisions about pet nutrition. It’s particularly relevant for people who currently choose dog food based on marketing claims or brand recognition. Pet food manufacturers should also pay attention, as it shows that consumers care about protein source. Veterinarians may find this useful for educating clients about the difference between protein quantity and quality. This research is less relevant to people who already consult their veterinarian about dog nutrition or who feed prescription diets recommended by their vet.
Changes in dog food choice could happen immediately if you switch brands based on this information. However, seeing health benefits from a better protein choice would take weeks to months, depending on your dog’s current health status and the specific change you make. Some dogs may show improvements in coat quality, energy levels, or digestion within 4-6 weeks of a dietary change, while other benefits might take longer to appear.
Frequently Asked Questions
Does my dog need high protein dog food?
Not necessarily. The right protein amount depends on your dog’s age, activity level, and health status, not marketing claims. A 2026 study found that owners who understood protein quality actually preferred lower-protein foods. Talk to your veterinarian about the appropriate protein level for your specific dog.
What is protein quality in dog food?
Protein quality means whether a protein source contains all the amino acids your dog needs to stay healthy. A 2026 survey found only 18% of dog owners could define this correctly. It’s not about the percentage on the label—it’s about whether the protein actually meets your dog’s nutritional needs.
Is chicken better than chicken meal for dogs?
A 2026 study of 691 dog owners found that chicken was the most preferred protein source, followed by chicken meal. However, the study measured owner preferences, not actual dog health outcomes. Both can be quality protein sources; the best choice depends on your individual dog’s needs and your veterinarian’s recommendation.
How should I choose dog food if I don’t understand protein labels?
Focus on the specific protein source listed (like chicken or fish) rather than just the percentage number. A 2026 study showed that protein source matters more to purchasing decisions than quantity. Most importantly, ask your veterinarian which protein sources and amounts are best for your dog’s age and health status.
Are high-protein dog food claims actually true?
Marketing claims like “high protein” aren’t standardized and don’t consider protein quality. A 2026 survey found these claims strongly influence purchases, but 82% of dog owners don’t understand what makes protein actually valuable for their dog. Your veterinarian can help you evaluate whether a specific food is appropriate for your dog.
Want to Apply This Research?
- Track the protein source and protein percentage of your current dog food, then monitor your dog’s energy level, coat quality, and digestion for 4-6 weeks. Rate these factors on a simple 1-5 scale weekly to see if switching to a different protein source makes a measurable difference.
- Use the app to compare the protein sources in different dog foods before purchasing. Create a list of protein sources your dog seems to do well on, then use the app’s barcode scanner or search feature to find new foods with those preferred sources at different price points.
- Set monthly reminders to evaluate your dog’s health markers (energy, coat, digestion, weight) and compare them to the protein source and amount in the current food. Over time, you’ll build a personal record of which protein sources work best for your individual dog, rather than relying on general marketing claims.
This research describes dog owner purchasing behavior and beliefs about dog nutrition, not actual nutritional requirements or health outcomes for dogs. The study did not test whether dogs performed better on different protein sources or amounts. Always consult with your veterinarian before making significant changes to your dog’s diet, especially if your dog has health conditions, is very young, very old, or has special nutritional needs. This article is for informational purposes only and should not replace professional veterinary advice.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.