Nutritional granular supplement for horses replaces electrolytes lost in equine sweat. Each 2 oz serving contains min 8% crude protein, min 680 mg glycine, min 0.4% crude fat, max 5% crude fiber, min 215 mg max 386 mg calcium, min 13,325 mg max 15,593 mg salt, min 5,386 mg max 5,953 mg sodium, min 150 mg magnesium, min 3,856 mg potassium and min 12,417 mg chloride.