Why this calculator exists
In 2026, a typical owner deciding to switch to raw faces a forum-fragmented landscape: some sources say 2%, others 3%, some include heart as organ, others don't. The result is unbalanced meals that miss the calcium-phosphorus target (1.2-1.4:1 NRC) or over-feed the organ slot (causing soft stool and vitamin A excess from liver). This calculator turns the BARF 70/10/10/5/5 and PMR 80/10/10 frameworks into per-ingredient grams, breed-tuned by AKC profile, with rotation and supplement guidance from current raw-feeding research.
The BARF model was published by Australian veterinarian Dr Ian Billinghurst in 1993 in "Give Your Dog A Bone". He argued that the modern kibble-fed dog was nutritionally mismatched to the species' evolutionary food profile. The 70/10/10/5/5 was his attempt to mimic the macro and micronutrient mix a wild canid would consume across a week. The PMR model is even more ancestral — it skips plant matter entirely on the theory that wild canids consume plants only incidentally (via stomach contents of prey).
Dr Conor Brady's 2020 book "Feeding Dogs" consolidated 20+ years of raw-feeding research and clarified two persistent confusions. First: heart is muscle meat, not organ — it is high in taurine but does not count toward the 10% secreting-organ slot. Second: green tripe is digestive enzyme rich and counts as muscle, suitable for sensitive GIs. Both clarifications are encoded in this calculator's ingredient breakdown.
Breed matters for the body-weight rate. Sled-efficient breeds (Husky, Malamute) convert food to work approximately 25% more efficiently than average — pet huskies overfeed at 2.5% and hold weight stubbornly. Brachycephalic breeds (Frenchie, English Bulldog) have suppressed thermogenesis and lower metabolic rate — 2% is the maximum. Toy breeds (Yorkie, Chihuahua) have the highest kcal/kg requirement of any size class and benefit from 3% body weight in 3-4 small meals.
Bloat (GDV) is the single biggest preventable risk in deep-chested raw-fed dogs. The Purdue 2003 cohort showed splitting meals reduces GDV risk by ~30%. Great Dane and Standard Poodle owners must feed 3 small meals on a floor-level bowl. Salmonella risk to dogs themselves is over-stated (shorter GI tract, lower stomach pH) but household hygiene matters — immunocompromised humans should not handle raw prep.
Pair this tool with the dog food calculator (kibble math), dog BCS calculator (body-condition target), and the dog calorie calculator to cross-check daily energy. Most raw plans land at 25-40 kcal per kg body weight per day.
Last reviewed: 2026-05. Aligned with Billinghurst BARF model (1993), Dr. Conor Brady (2020), NRC 2006, WSAVA 2021, and FEDIAF 2021.