What Is the BARF Diet?
BARF (Biologically Appropriate Raw Food) feeds dogs and cats raw muscle meat, bones, and organs — replicating the ancestral wild diet. BARF (Biologically Appropriate Raw Food) is a raw feeding model developed by Dr. Ian Billinghurst. It aims to replicate the ancestral diet of dogs and cats: raw muscle meat, raw meaty bones, organ meats, and a small amount of vegetation (for dogs). The core philosophy: feed what a wild canid/felid would eat — unprocessed, species-appropriate, and free of grains and fillers.
Source: NRC Nutrient Requirements of DogsThe 80-10-10 Ratio Explained
Dogs: 80% muscle meat, 10% bone, 5% liver, 5% other organs. Cats: 75% meat, 10% bone, 5% liver, 10% organs. Liver must never exceed 5%. For dogs on BARF: 80% muscle meat, 10% raw meaty bone, 5% liver, 5% other secreting organs (kidney, spleen, pancreas). For cats: 75% muscle meat, 10% bone, 5% liver, 10% other organs (no vegetables needed). The 80-10-10 ratio targets calcium:phosphorus balance (1.2:1 to 1.4:1) and essential micronutrients from organ meats. Liver must not exceed 5% — excess vitamin A causes toxicity.
Source: FEDIAF Nutritional GuidelinesRaw Feeding Safety Guidelines
Raw meat carries Salmonella, E. coli, Campylobacter risks. Freeze 2-3 weeks before feeding, use human-grade sources, sanitize all surfaces. Raw feeding carries pathogen risks — Salmonella, E. coli, Campylobacter, and Listeria are found in commercial and homemade raw diets. Safety practices: (1) Freeze meat for 2-3 weeks before feeding to reduce parasite load, (2) Use human-grade meat from trusted sources, (3) Sanitize all surfaces/bowls immediately after feeding, (4) Wash hands thoroughly, (5) Immunocompromised household members should avoid handling raw pet food.
Source: AVMA Raw Diet Position StatementBone-to-Meat Ratio and Calcium Balance
10% raw meaty bone provides the critical calcium:phosphorus ratio. Never feed cooked bones — they splinter. Chicken necks (~40% bone) are a common source. Raw meaty bone provides calcium and phosphorus — the most critical mineral balance in a raw diet. Too little bone = calcium deficiency and metabolic bone disease. Too much bone = constipation and mineral imbalance. The 10% bone ratio targets 10-15% of total dietary calcium. Chicken necks (~40% bone), duck necks (~50% bone), and turkey necks (~40% bone) are common BARF bone sources. Never feed cooked bones — they splinter.
Source: NRC Mineral Requirements for DogsData verified by petsMetrics using peer-reviewed veterinary sources. Citations: ASPCA, AVMA, AAFP. Last reviewed: 2026.