Does it seem like you’ve been hearing a lot recently about vitamin E in equine diets? That’s for a good reason. This antioxidant is essential for horses’ muscle and neurologic health. Fresh grass provides a natural source of vitamin E, but we all know year-round pasture access isn’t always an option. And now researchers are discovering genetic reasons some horses require additional supplementation. In this episode, we discuss the different types of vitamin E and their bioavailability, signs of deficiency, related diseases, testing, and how to know if your horse needs supplementation.