Oxalate pastures and horse health
Oxalates are compounds that bind to calcium and other essential minerals, locking them up in forms that horses cannot absorb. Because calcium is critical for so many vital body functions—bone strength, muscle contraction, nerve signalling, cardiovascular function - this binding process can quickly lead to deficiency. When dietary calcium is not available, the horse’s body pulls calcium from its own skeleton, leading to weakness, pain, and in severe cases, the bone disease known as Bighead.