Zinc is an important essential mineral that plays a role in cell division, cell growth, wound healing, it stimulates enzymes in the body, and is crucial for a healthy immune system (1). In fact studies in humans have shown that "zinc supplementation decreased oxidative stress markers and generation of inflammatory cytokines" (2). While zinc deficiencies are more commonly seen in northern breeds like huskies or malamutes (as they have a genetic predisposition to poor zinc absorption), Kristin posits that they are a "silent killer" for dogs of all breeds, ages, and backgrounds.