Overview
Zinc-responsive dermatosis is a skin condition caused by inadequate zinc absorption, seen almost exclusively in Nordic breeds (Siberian Huskies, Alaskan Malamutes) due to a hereditary reduced ability to absorb zinc from the gut. It causes distinctive crusty, scaly lesions around the eyes, muzzle, ears, and paw pads. The condition is lifelong but completely manageable with zinc supplementation.
Symptoms to Watch For
- Thick, crusty scales around eyes and muzzle
- Hair loss around the face and ears
- Hardened, cracked paw pads and nose
- Redness at skin-mucous membrane junctions
- Secondary skin infections from damaged skin barrier
How Nutrition Helps
Oral zinc supplementation is the primary treatment — most dogs show improvement within days to weeks. Zinc sulfate or zinc methionine are commonly used. Importantly, high-calcium diets block zinc absorption, so switching to a food with controlled calcium levels may be necessary. Omega-3 fatty acids support skin healing alongside zinc.
Prevention Tips
- Supplement zinc for Huskies and Malamutes from puppyhood
- Avoid high-calcium diets that block zinc absorption
- Use high-bioavailability zinc forms (zinc methionine)
- Monitor skin around eyes, nose, and paw pads
- Feed omega-rich diets for skin support
Breeds at Higher Risk
Siberian Huskies and Alaskan Malamutes are most affected (Syndrome 1). Syndrome 2 affects rapidly growing large breed puppies on zinc-deficient or high-calcium diets.