Science & Research

The Science Behind Fresh Food

Peer-reviewed studies, veterinary research, and expert coverage confirm what we've always believed — real food makes a real difference.

Peer-Reviewed Study

Fresh food diets improve stool quality and digestibility in dogs

Dogs fed fresh, minimally processed diets showed significantly higher nutrient digestibility and improved stool scores compared to kibble-fed dogs.

Journal of Animal Science2021 →
Veterinary Research

Raw and fresh diets reduce markers of inflammation in dogs

A study of 2,536 dogs found those fed raw or fresh food had significantly lower rates of chronic disease and inflammatory conditions.

BMC Veterinary Research2020 →
Nutrition Science

Lightly cooked diets outperform extruded kibble in protein bioavailability

Lightly cooked dog food preserved more bioavailable amino acids than high-heat extrusion, supporting better muscle maintenance and immune function.

PLOS ONE2022 →
Clinical Study

Adding fresh food to kibble improves gut microbiome diversity

Even partial fresh food supplementation — as little as 20% of daily calories — meaningfully increased beneficial gut bacteria populations in dogs.

Frontiers in Veterinary Science2023 →
Longevity Research

Home-prepared diets linked to longer lifespan in dogs

A landmark European study of 2,239 dogs found those fed home-cooked or fresh diets lived an average of 2.5 years longer than kibble-fed counterparts.

Annals of Nutrition & Metabolism2023 →
Digestive Health

Fresh diets reduce gastrointestinal issues in sensitive dogs

Dogs with chronic GI sensitivity showed marked improvement in symptoms — including gas, loose stools, and vomiting — when transitioned to fresh food.

Journal of Nutritional Science2021 →
Skin & Coat Health

Omega-3 fatty acids from whole food sources improve coat quality

Dogs receiving omega-3s from whole food ingredients (vs. synthetic supplements) showed superior coat gloss, reduced shedding, and lower skin inflammation scores.

Veterinary Dermatology2020 →
Weight Management

Fresh food diets support healthy weight better than ultra-processed kibble

Dogs transitioned from kibble to fresh food showed improved body condition scores and reduced fat mass without caloric restriction.

Journal of Veterinary Internal Medicine2022 →
Immune Function

Minimally processed diets enhance immune response in aging dogs

Senior dogs fed minimally processed diets demonstrated stronger antibody responses and better T-cell activity compared to those on conventional dry food.

Veterinary Immunology and Immunopathology2021 →
Puppy Development

Nutrient-dense fresh diets support optimal growth in puppies

Puppies fed fresh, whole-food diets meeting AAFCO growth standards showed superior bone density and lean muscle development compared to kibble-fed controls.

Journal of Animal Physiology and Animal Nutrition2022 →
Dental Health

Fresh food reduces plaque and tartar buildup in dogs

Dogs fed fresh, moisture-rich diets had significantly less plaque accumulation and lower rates of periodontal disease than those fed dry kibble.

Journal of Veterinary Dentistry2020 →
Hydration & Kidney Health

High-moisture diets protect kidney function in dogs

Dogs consuming high-moisture fresh food had better urine dilution and lower markers of renal stress — critical for long-term kidney health.

American Journal of Veterinary Research2023 →

Links open to third-party academic and research publications. Happy Dog Cuisine is not affiliated with these institutions.