West Highland White Terrier Nutrition Guide — Skin, Lungs & Diet

West Highland White Terriers — Westies — pack enormous personality into a small frame (7-10 kg). They are cheerful, confident, and surprisingly hardy for their size. But beneath that iconic white coat lies a breed with one of the highest rates of skin disease in the dog world, along with a unique respiratory condition that no other breed shares. What you feed a Westie is not just about calories — it is directly connected to how their skin functions, how their immune system behaves, and how their lungs hold up over time.

Atopic Dermatitis: The Defining Westie Health Issue

If you own a Westie, you will almost certainly deal with skin problems at some point. Atopic dermatitis — an allergic skin condition triggered by environmental and dietary allergens — affects Westies at rates far higher than most other breeds. Some studies estimate that up to 25% of Westies develop clinical atopic dermatitis, making it the single most common health complaint veterinarians see in this breed.

Symptoms typically appear between 6 months and 3 years of age: persistent itching, red or inflamed skin, recurrent ear infections, paw licking, and hot spots. While environmental triggers (pollen, dust mites) play a major role, diet is one of the few factors you can fully control.

Nutritional support for skin health goes beyond avoiding allergens:

• Omega-3 fatty acids (EPA/DHA): 75-100 mg per kg of body weight daily. Fish oil reduces inflammatory cytokines in the skin and can meaningfully decrease itching severity. For a 9 kg Westie, this means approximately 700-900 mg EPA+DHA daily.
• Omega-6 (linoleic acid): Supports the skin barrier function. Look for foods with at least 2% linoleic acid on a dry matter basis.
• Zinc: Essential for skin cell turnover and immune regulation. Westies with chronic skin issues may benefit from foods with chelated zinc (zinc methionine or zinc proteinate) for better absorption.
• Biotin and B vitamins: Support coat quality and skin repair. Many premium small-breed formulas include elevated B-vitamin complexes.

Westie Lung Disease (Idiopathic Pulmonary Fibrosis)

Westie lung disease — technically idiopathic pulmonary fibrosis (IPF) — is a progressive condition in which lung tissue becomes scarred and stiff, making it increasingly difficult for the dog to breathe. It is essentially the canine equivalent of the same disease in humans, and West Highland White Terriers are the breed most commonly affected. The condition typically appears in middle-aged to older Westies (9+ years) and there is currently no cure.

While diet cannot reverse pulmonary fibrosis, nutritional support can help manage the condition and slow decline:

• Maintain ideal body weight: Excess weight puts additional strain on compromised lungs. Even 500 grams of extra weight matters in a 7-10 kg dog.
• Antioxidant-rich foods: Vitamin E, vitamin C, and selenium help combat oxidative stress in damaged lung tissue. Look for foods listing mixed tocopherols, blueberries, or spinach in ingredients.
• Omega-3 fatty acids: Their anti-inflammatory properties support respiratory function. EPA in particular may help reduce inflammation in lung tissue.
• Easily digestible calories: Dogs with advanced IPF expend more energy breathing. Calorie-dense, highly digestible food ensures they maintain weight without having to eat large volumes that could press against the diaphragm.

Calorie Needs and Feeding Schedule

Westies are a small breed with moderate energy levels. They are active and curious but not hyperactive. Their caloric needs reflect their compact size:

Feed two meals per day for adults. Westies are not as food-obsessed as some breeds, but they will overeat if given the chance. Measured portions are essential — use a kitchen scale, not a scoop. Small breeds have very little margin for error with calories. An extra 50 calories per day — the equivalent of a small treat — can lead to significant weight gain over months.

Legg-Calve-Perthes Disease and Joint Nutrition

Legg-Calve-Perthes disease is a condition where the blood supply to the femoral head (the ball of the hip joint) is disrupted, causing the bone to deteriorate. It primarily affects small breeds, and Westies are among the most commonly diagnosed. Symptoms typically appear in puppies between 4 and 12 months of age — limping, pain when the hip is manipulated, and muscle wasting in the affected leg.

Surgery is usually required for severe cases, but nutritional support is important for recovery and long-term joint health:

• Glucosamine and chondroitin: Support cartilage repair post-surgery and maintain joint function. Small-breed joint supplements typically provide 250-500 mg glucosamine daily.
• Adequate calcium and phosphorus: Proper bone development during puppyhood is critical. A calcium-to-phosphorus ratio of 1.2:1 to 1.5:1 is ideal for growing small breeds.
• Controlled growth rate: While less of a concern than in large breeds, Westie puppies should still grow steadily rather than rapidly. Three meals per day until 6 months, then two meals daily.

Addison's Disease and Dietary Considerations

Hypoadrenocorticism (Addison's disease) — where the adrenal glands fail to produce sufficient cortisol and aldosterone — occurs in Westies at higher rates than many other breeds. Dogs with Addison's disease are typically managed with lifelong hormone replacement, but diet plays a supporting role:

• Consistent feeding schedule: Dogs with Addison's are sensitive to stress, including irregular feeding times. Same time, same food, every day.
• Adequate sodium: Aldosterone deficiency causes sodium loss. Dogs on mineralocorticoid replacement may still benefit from not restricting sodium in their diet. Consult your vet before making sodium adjustments.
• Highly digestible protein: Addisonian dogs may experience intermittent GI upset. Easily digestible protein sources (fish, egg, hydrolyzed protein) reduce digestive stress.
• Avoid sudden diet changes: Any dietary transition should be done gradually over 7-10 days, even more slowly than for a healthy dog.

Craniomandibular Osteopathy in Puppies

Craniomandibular osteopathy (CMO) — sometimes called "Westie jaw" or "lion jaw" — is an abnormal bone growth condition affecting the skull and jaw of puppies, typically between 3 and 8 months of age. The condition is painful and makes eating difficult. While CMO usually resolves as the puppy matures, the acute phase requires nutritional adaptation:

• Softened food: Soak kibble in warm water or switch to wet food during flare-ups. Chewing hard food is extremely painful.
• Calorie-dense meals: Puppies with CMO often eat less due to jaw pain. Choose nutrient-dense food so they get adequate nutrition from smaller volumes.
• Avoid calcium supplementation: Excessive calcium can worsen abnormal bone growth. Feed a balanced commercial diet — do not add calcium supplements.