Vitamin E and selenium play complementary roles in equine immune health, functioning as key antioxidants that help protect cells from oxidative stress and support normal immune responses. Because requirements vary by diet, geography, and workload—and excess selenium can be harmful—horse owners should work with a veterinarian or nutritionist to evaluate forage and select appropriately dosed, research-supported sources. In this Ask TheHorse Live Excerpt, Frank Andrews, DVM, MS, Dipl. ACVIM, of Louisiana State University, in Baton Rouge, describes the role of vitamin E and selenium in equine immune health.

This podcast is an excerpt of our Ask TheHorse Live Q&A, “Choosing the Right Supplement for Your Horse.” Listen to the full recording here.