To Stop a Horse from Digging in the Stall:
To Help a Horse to Replace Minerals Lost Racing:

OM Powder      (Currently on sale.  See the "Specials" link)

Supplies the minerals the horse is digging for.  This usually eliminates the digging unless it is done due to boredom.

An excellent mineral supplement, especially for Lasix horses.  Replaces minerals lost in racing and work.

2 lbs - Approximately 1 month supply - $35