Electrolytes for Horses

When a horse sweats it loses salts such as sodium, chloride and potassium. This depletion of a horse's natural electrolyte balance can cause muscle stiffness, tiredness and colic symptoms that can be potentially life threatening. Administering electrolytes before, during and immediately after heavy work, may replace lost electrolytes and prevent dehydration.

When To Provide Extra Electrolytes

Most horses under a light work load and eating a balanced diet with either loose salt (sodium chloride) or a salt block available will not need electrolyte supplements. But horses participating in sports like endurance riding or eventing may benefit from electrolytes. Some people may supplement with electrolytes during extremely hot weather, when horses are sweating just standing still. But it would be best to consult with an equine veterinarian before doing so.

Provide the Right Type

There are several types of electrolytes formulated especially for horses. Electrolytes made for cattle or other livestock may be unsuitable. Also, electrolytes with a high proportion of sugars are not suitable.

Get Advice From the Pros

If you are planning to compete in a sport like endurance riding get advice from your equine veterinarian and seasoned competitors before administering electrolytes.

Written in consultation with Gayle Ecker, Senior Manager, Equine Guelph Education, Training and Communications University of Guelph, Ontario Canada