More-mag lasts for longer than traditional forms of magnesium. One More-mag dose poured on the feed will last for up to 10 days. Most horses in work are fed more-mag once a week, and once fed, the full amount of magnesium is available right away. That means that there is no need to build up to the appropriate dose rate over a period of days because when you dose More-mag you know your horse will be able to draw upon the magnesium that it needs. In addition, if you or your horse become injured or sick, you can cut the dose out, and reintroduce it when the horse is back at the track, or in equestrian work.
More-Mag is a natural remedy for equestrian and racing horses