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Peer-reviewed work suggests human-grade diets can deliver higher digestibility and lower stool volume than extruded kibble, which may matter for nutrient use and day-to-day feeding efficiency.
A research-backed look at human-grade dog food digestibility, amino acid availability, and stool volume compared with extruded kibble.
Digestibility finding
Most indispensable amino acids exceeded 85% digestibility in one human-grade study.
One 4-week mildly cooked transition study found a significant microbiome shift and lower defecation frequency in many dogs.
Several studies found that moving dogs from extruded kibble to fresh or mildly cooked diets can shift the gut microbiome, often alongside lower stool frequency or owner-reported improvements.
Dogs on one mildly cooked human-grade diet showed better hair surface scores and lower water loss from one skin region.
A 12-week controlled study found modest improvements in coat surface quality and some skin-barrier markers with a mildly cooked human-grade diet, but not every skin metric changed.
One crossover study found a lower TNF-alpha to IL-10 ratio after a whole-food diet, suggesting a possible anti-inflammatory effect.
A crossover clinical trial in healthy dogs found an anti-inflammatory shift in one cytokine ratio after a whole-food diet, offering an early but cautious signal worth watching.
In dogs that stayed on the plan, owners often reported better coat quality, less frequent evacuation, and substantial improvement in many GI or skin cases.
A 2024 descriptive follow-up study found encouraging owner-reported improvements in coat quality, stool patterns, and symptom burden in many dogs staying on balanced homemade diets, especially in gastrointestinal and dermatologic cases.
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