The Yorkshire Terrier is a small-breed companion dog (2-3.5 kg) known for its silky coat and bold temperament. Despite its small body size, it has a high metabolic rate, and hypoglycemia, dental disease, tracheal collapse, hepatic shunt (portosystemic shunt), patellar luxation and pancreatitis are breed-associated problems that require careful nutrition planning.
Hypoglycemia Warning
Yorkshire Terrier puppies and small-sized adults (<2 kg) extremely prone to hypoglycemia. It is dangerous for them to starve for more than 4-6 hours due to low glycogen stores and high metabolic rate. Symptoms: tremor, weakness, seizure, coma. Emergency treatment: applying honey/sugar syrup to the gums.
1. Breed Profile
- Weight: 2-3.5kg
- Height: 18-23cm
- Lifespan: 13-16 years
- Activity: medium-high
- Maturity: 8-10 months
- Hypoglycemia: Puppy and small size
- Dental disease: very common
- Hepatic shunt (PSS): congenital
- Tracheal collapse: chronic cough
- Patellar luxation: Grade I-IV
- Metabolic rate: very high
- Energy: 80-100 kcal/kg/day
- Glycogen storage: low
- Coat growth: Continuous (hair-like)
- Dental risk: very high
2. Nutritional Profile
Adult Yorkshire Terrier Ideal Diet Profile
- Protein: 28-32% DM (high quality, for coat health)
- Fat: 15-20% DM (high energy density required)
- Energy density: >3800 kcal/kg food
- Fiber: 2-4% DM (low — small stomach capacity)
- Omega-3 + Omega-6: Coat shine and skin health
- Biotin: Keratin synthesis (silky hair structure)
- Meal: 3-4 times a day (preventing hypoglycemia)
- Food size: Mini kibble (small mouth structure)
3. Breed-Specific Nutrition Issues
3.1 Hepatic Shunt (Portosystemic Shunt - PSS)
The Yorkshire Terrier is the breed at highest risk for congenital portosystemic shunt. The abnormal vessel bypassing the liver causes toxins (ammonia, aromatic amino acids) to pass into the systemic circulation.
- Hepatic encephalopathy (postprandial)
- growth failure
- Polyuria/polydipsia
- Ammonium urate crystals (urine)
- Seizure, disorientation
- Protein restriction: 14-18% KM (high quality)
- Protein source: Milk protein, soy > meat (ammonia ↓)
- Branched chain AA: Leucine, isoleucine, valine ↑
- Soluble fiber: Colonic pH decreases, which helps reduce ammonia absorption
- Small, frequent meals: 4-6/day
- Copper restriction: Risk of hepatic copper accumulation
3.2 Dental Health
More than 85% of Yorkshire Terriers develop periodontal disease by the age of 3 years. Small chin, crowded teeth and failure of milk teeth to fall out are risk factors:
- Dry food: Mini kibble — mechanical plaque removal
- Dental rod: VOHC approved, true to size (included in calorie count)
- Sodium hexametaphosphate: Slows tartar formation
- Ca:P ratio: 1.2:1 - 1.5:1 (tooth mineralization)
- Wet food with caution: No dental cleaning effect — combined with dry food
3.3 Risk of Pancreatitis
The risk of pancreatitis is high in small breed dogs. High-fat diets and table scraps are the most common triggers:
Pancreatitis Prevention
- Fat should not exceed 15-18% DM in healthy adults
- Table scraps — especially fatty foods — should NEVER be given
- If there is a history of pancreatitis: fat <10% DM, high digestibility
- Prefer fish oil as a source of omega-3 (instead of animal fat)
3.4 Coat Health
The Yorkshire Terrier's silky, hair-like coat grows constantly and requires high nutritional support:
- High quality protein: 28-32% DM (keratin synthesis)
- Methionine + Cysteine: Sulfur-containing amino acids that support coat structure
- Biotin: keratin cofactor
- Zinc: Hair follicle health
- Omega-6 (LA): Coat shine and skin barrier function
- Omega-3 (EPA/DHA): Anti-inflammatory skin support
4. Conclusion
Despite its small size, the Yorkshire Terrier has a high metabolic rate, risk of hypoglycemia, marked dental disease susceptibility and potential for hepatic shunt, so the nutrition plan should be designed carefully. High energy density, frequent meals, mini kibble size, quality protein and omega fatty acids for coat health — these are the cornerstones of this breed's nutritional strategy. Protein restriction is lifesaving in individuals diagnosed with PSS.
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Bibliography
- Center, S. A. (2005). Metabolic, antioxidant, nutraceutical, probiotic, and herbal therapies relating to the management of hepatobiliary disorders. Veterinary Clinics of North America: Small Animal Practice, 34(1), 67-172.
- Tobias, K. M. (2003). Determination of inheritance of single congenital portosystemic shunts in Yorkshire Terriers. Journal of the American Animal Hospital Association, 39(4), 385-389.
- NRC (National Research Council). (2006). Nutrient Requirements of Dogs and Cats. National Academies Press.
- Xenoulis, P. G., & Steiner, J. M. (2010). Lipid metabolism and hyperlipidemia in dogs. The Veterinary Journal, 183(1), 12-21. https://doi.org/10.1016/j.tvjl.2008.10.011