Why Do Some Owners Choose Homemade Cat Food?
In recent years, homemade cat food has gained popularity among cat owners. According to a survey published in the Journal of the American Veterinary Medical Association (JAVMA), approximately 10 to 15 percent of pet owners have attempted to prepare food for their pets at home. Common motivations include:
- Ingredient control: Owners can select human-grade meats and ingredients, avoiding uncertain processed components.
- Addressing special dietary needs: Cats with food allergies or specific medical conditions may require the exclusion of certain protein sources, which homemade diets can flexibly accommodate.
- Dietary variety: Rotating different meats and ingredients can reduce the risk of overexposure to a single protein source.
- Improved palatability: Fresh ingredients often have superior flavor compared to processed foods, which may appeal to picky eaters.
However, the ISFM (International Society of Feline Medicine) and AAFP (American Association of Feline Practitioners) both emphasize that the greatest risk of homemade cat food is nutritional imbalance. Without professional guidance, critical nutrient deficiencies can jeopardize a cat's health.
Essential Nutrients and Ratios for Cats
Cats are obligate carnivores, with nutritional requirements fundamentally different from those of humans and dogs. According to the NRC (National Research Council, 2006)Nutrient Requirements of Dogs and Cats, a cat's diet should meet the following macronutrient proportions:
| Nutrient | Recommended % of Metabolizable Energy | Notes |
|---|---|---|
| Protein | 50–60% | Primarily animal-based; plant proteins have lower bioavailability |
| Fat | 20–35% | Must include essential fatty acids like arachidonic acid (AA) |
| Carbohydrates | ≤ 10% | Cats lack the enzymes to efficiently digest large amounts of carbohydrates |
Additionally, cats require several indispensable micronutrients, including taurine, preformed vitamin A (cats cannot convert beta-carotene), arachidonic acid, and an appropriate calcium-to-phosphorus ratio (ideally 1.1:1 to 1.5:1).
Basic Recipe Framework
A standard homemade cat food recipe typically follows these proportions by weight (based on recommendations by Lisa A. Pierson, DVM):
- Meat with bone, approximately 80–85%: Chicken thighs, rabbit, and turkey with bone are common choices. Bone-in meat provides a natural calcium source.
- Organ meats, approximately 10%: Liver at about 5% (provides vitamins A and B complex), and heart at about 5% (rich in taurine).
- Egg yolk and fish oil, approximately 5%: Supplies essential fatty acids (EPA/DHA) and additional fat-soluble vitamins.
- Nutritional supplements: Even with the above ingredients, additional taurine, vitamin E, iodine, and B vitamins are still required.
Board Certified Veterinary Nutritionists (ACVN) recommend that all homemade recipes beformulated and reviewed by a veterinary nutritionist to ensure compliance with AAFCO or NRC nutritional standards.
Common Mistakes and Risks
- Omitting taurine supplementation: Taurine deficiency can cause dilated cardiomyopathy (DCM) and retinal degeneration. According to Pion et al. (1987) in Science, this is one of the most dangerous oversights in homemade cat diets.
- Calcium-phosphorus imbalance: Boneless meat is high in phosphorus but deficient in calcium. Long-term feeding can lead to nutritional secondary hyperparathyroidism and brittle bones.
- Over-reliance on a single protein: Feeding only chicken or fish long-term may lead to specific micronutrient deficiencies or excesses.
- Excessive carbohydrates: If carbohydrate sources like rice or sweet potato exceed 10% of the total diet, blood sugar fluctuations may occur, increasing long-term obesity and diabetes risk.
- Unsafe raw meat handling: According to the Journal of Feline Medicine and Surgery (2019), raw feeding carries risks of Salmonella and Listeria contamination, particularly dangerous for immunocompromised cats and young children in the household.
- Using unverified online recipes: A study published in JAVMA (Wilson et al., 2019) analyzed 114 online homemade cat food recipes and found problems with nutritional adequacy in ALL evaluated recipes — most commonly choline, iron, thiamine, zinc, manganese, vitamin E, and copper deficiency.
Essential Supplements for Homemade Diets
Even with diverse fresh ingredients, the following nutrients almost always require supplementation to ensure adequacy:
- Taurine: Recommended daily intake of approximately 250–500 mg, depending on the amount of heart meat in the recipe.
- Vitamin E: An essential antioxidant, particularly important in high-fat diets. Approximately 30 IU per day is recommended.
- Iodine: If the recipe does not include seaweed or seafood, iodine supplementation is necessary for thyroid function.
- B vitamins: These water-soluble vitamins are easily lost during cooking and require supplementation.
- Calcium: If bone-in meat is not used, calcium must be supplemented via eggshell powder or calcium carbonate to maintain a calcium-to-phosphorus ratio of 1.1:1 to 1.5:1.
- Fish oil (EPA/DHA): Omega-3 fatty acids support skin health and have anti-inflammatory properties. Daily supplementation with fish oil containing EPA and DHA is recommended.
The ACVN strongly recommends that owners who intend to feed homemade diets long-term consult a board-certified veterinary nutritionist and use professional software (such as Balance IT or PetDIETS) for recipe formulation and nutritional analysis.
References
- National Research Council (NRC). (2006). Nutrient Requirements of Dogs and Cats. The National Academies Press.
- Wilson, S.A., Villaverde, C., Fascetti, A.J., & Larsen, J.A. (2019). Evaluation of the nutritional adequacy of recipes for home-prepared maintenance diets for cats. Journal of the American Veterinary Medical Association, 254(10), 1172-1179.
- Pion, P.D. et al. (1987). Myocardial failure in cats associated with low plasma taurine. Science, 237(4816), 764-768.
- Freeman, L.M. et al. (2013). Current knowledge about the risks and benefits of raw meat-based diets for dogs and cats. Journal of the American Veterinary Medical Association, 243(11), 1549-1558.
- Pierson, L.A. (DVM). CatInfo.org — Making Cat Food. Retrieved 2026.
- WSAVA Global Nutrition Committee. Global Nutrition Guidelines. wsava.org
- AAFP & AAHA. (2021). Nutritional Assessment Guidelines for Dogs and Cats.