Premier Performance Electrolyte Cookies**Sold in packet of 10 ** The Electrolyte Cookie is a unique and flexible way of ensuring your horses electrolyte requirements are met. Contains sodium, chloride, potassium, calcium and magnesium which are essential for maintaining overall health. Electrolytes are important for cardiac function, muscle contraction, dilation of blood vessels, nerve impulse conduction, kidney filtration, gut motility, maintaining internal pH Levels, and hydration. A