In a free-roaming situation, horses graze throughout the day and night. Trying to mimic this natural feeding behavior is a good idea. Horses that are confined to stalls or small drylots should be fed at least two times per day, ideally with enough hay so that they can continually pick at it between feedings. For overweight horses, less hay should be provided at each feeding. Be careful not to restrict hay below 1% of body weight as too little fiber can lead to digestive upset. Horses that are in strenuous training may need to be fed the grain portion of their diet three to four times per day to keep meal sizes small.