What role does selenium play in a horse's overall health?

Selenium is an essential trace mineral that plays a pivotal role in ensuring muscle health in horses. It is a key component of antioxidant enzymes, such as glutathione peroxidase, which help protect muscle cells from oxidative damage. Adequate selenium levels support the maintenance and function of muscle tissue, making it vital for overall muscle performance and recovery. A deficiency in selenium can lead to conditions such as white muscle disease, characterized by muscle weakness and damage. This further emphasizes the importance of selenium for muscle integrity and function, supporting the idea that its primary role relates to muscle health.