Behind Every Cute Cavapoo Is a Stomach Plotting Chaos

You’re admiring your Cavapoo’s velvety coat and irresistible eyes when it happens. A foul-smelling squelch reminds you that beneath all that fluff lies a gastrointestinal tract that is... volatile at best. 

Despite their image as the perfect family pet, new research has found that Cavapoos and other designer dogs are overrepresented in veterinary clinics for one common issue: acute diarrhea. It’s not a glamorous topic, but it’s an important one. For pet owners, it means vet visits and carpet cleaners. For pet food professionals, it means a missed opportunity to do better by a rapidly growing population of high-risk dogs. 

Let’s unpack why this problem exists, how the industry has overlooked it, and what both consumers and manufacturers can do to solve it. 

Why Designer Dogs Are Digestively Doomed  

A recent study of UK veterinary records found that the annual incidence of acute diarrhea in dogs under veterinary care in the UK was 8.18% in 2019. Among the most affected? Designer breeds. Cavapoos, Maltese, Miniature Poodles, Cockapoos, and Yorkshire Terriers had significantly higher episodes of diarrhea compared to crossbreed dogs. Cavapoos alone had an incidence rate of nearly 15%, almost double the national average—and we are not talking about dogs with chronic illnesses or compromised immune systems. 

This new insight calls for pet owners and the pet food industry to rethink how we feed our furry friends. Acute diarrhea can take a toll on a dog’s well-being and an owner’s confidence in the food they’re feeding. For designer dogs, whose appeal often lies in their appearance and temperament, digestive health is an overlooked vulnerability. A combination of factors makes these breeds more susceptible to GI issues: 

• A small gut capacity means there is less room to buffer against irritating ingredients. 

• A faster metabolism means they process food quickly, so any issues with the formula are made apparent quickly.  

• Lower genetic diversity from selective breeding may also contribute to weaker gut resilience. 

Combine these traits and you’ve got a ticking time bomb wrapped in fur. Add in the age risk, as puppies under three and dogs over nine were identified as having the highest diarrhea rates in the  UK study mentioned previously, and we have a clear case for more targeted nutrition. For pet owners, this means being extra cautious about food transitions and monitoring their dog's response to dietary changes. For brands, it means one-size-fits-all solutions are failing these dogs. 

Walk down any pet food aisle and you’ll see plenty of bags labeled “Adult,” “Small Breed,” or “All Life Stages.” While these products typically meet the Association of American Feed Control Officials (AAFCO) baseline nutritional standards, they often fall short on other important considerations, such as the ease of digestion, the quality of the ingredients, and the unique health needs of certain breeds. 

Dialing in Digestibility 

The digestibility of a pet food product is not currently required to be tested when launching or revamping a formulation. Yet, it is the single most important factor in preventing diet-induced diarrhea. Without it, you may be feeding your dog a bowl full of technically “complete” nutrients that their body can’t absorb efficiently. For sensitive dogs, especially designer crossbreeds, these formulas can lead to chronic loose stools, discomfort, inflammation, and an erosion of consumer trust. That’s not just bad for dogs. It’s bad for business. 

Digestibility measures how much of the food’s nutrients are absorbed by the dog, rather than excreted. For dogs with sensitive guts, it’s the difference between thriving and vet visits. At BSM Partners, we regularly conduct digestibility trials to ensure formulations are small-stomach approved before they hit the market, and we encourage the rest of the industry to do the same. 

Digestibility trials involve feeding the test diet to a group of six animals exclusively for 10 days, then collecting and analyzing stool samples for five days to determine how much protein, fat, fiber, and energy was utilized. These trials provide key insights into overall diet digestibility, protein and fat digestibility, and the effects of factors like fiber levels, cooking methods, ash content, and anti-nutrient compounds. Because digestibility can be affected by ingredients, processing, and formulation choices, these studies are an essential yet often overlooked tool for validating the real-world performance of diets and supporting optimal pet health. 

Bottom line: If your pet’s food isn’t digestible enough, it doesn’t matter how nutritious it looks on paper. And if your product isn’t validated for digestibility before launch, you’re playing nutritional roulette with small, vulnerable dogs.  

Life Stage Needs Can’t Be Ignored 

Puppies are still developing their digestive systems, with limited enzyme production and unstable microbiomes. That’s why they do best on diets with easily digestible proteins, moderate fat levels, and ingredients that gently support gut development. Introducing excessive fat or insoluble fiber too early can interfere with healthy digestion in the long run.  

On the other end of the spectrum, senior dogs tend to have slower digestion and reduced enzyme activity. They often benefit from lower fat, moderate fiber, and anti-inflammatory ingredients. Formulas for seniors could also include Omega-3 fatty acids, joint support ingredients, such as green-lipped muscles, and antioxidant-rich ingredients to address aging-related challenges.  

While some formulas are labeled “for all life stages,” they may not adequately address the specific needs of growing puppies or aging seniors. 

For Pet Parents: What You Should Ask Brands 

Pet owners aren’t powerless in this conversation, either. The next time you’re buying food for your Cavapoo (or any sensitive small breed), ask these questions: 

• Has the food been tested to verify digestibility? 

• Does this formula include any gut-health-supporting functional ingredients, and is there research to support the amount of them in a serving? 

• Was this food developed with breed or life-stage needs in mind? 

If a brand can’t answer any of these questions confidently, that bag of kibble might be a ticking time bomb for your carpet. 

Feed the Dog, Not the Marketing Machine 

Designer dogs may be small, but their digestive needs are mighty. Behind those bright eyes and fluffy ears lies a stomach that’s more sensitive than many brands are willing to admit. The pet food industry must move beyond generic formulations and embrace a new standard of evidence-based, breed-informed, life-stage-focused nutrition. That means digestibility trials, strategic formulation, and real functional ingredients—not just label candy. Pet owners should demand better. Manufacturers should create smarter. And all of us (dogs included) deserve a future with fewer squishy surprises and more healthy, happy wagging tails.  

At BSM Partners, we know that creating truly effective pet nutrition involves more than just meeting minimum requirements. It takes hands-on experience, sharp attention to detail, and a genuine understanding of what pets need as they grow and age. Whether you’re working on a brand-new recipe, tweaking a current formulation, or exploring how to better support digestibility and breed-specific needs, our team of veterinarians, nutritionists, and product developers is here to roll up our sleeves and help you get it right. We are passionate about transforming science into practical solutions that support pet health, build brand trust, and drive innovation in the pet industry. 

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About the Author

Neeley Bowden is a Manager of Special Services on the BSM Partners Product Innovation team. She earned her bachelor's degree in pet food production and her master's in food science. In her early career, she worked in product innovation of pet food ingredients, focusing on the development of palatability enhancers. Bowden calls her horse farm in South Carolina home, along with her faithful canine, Allie.