Make sure your horse is getting everything he needs with DAC Formula E+Se Horse Supplement. Formulated to support muscle function as well as immune and reproductive health， this vitamin E and Selenium supplement can be fed with any kind of diet and may help prevent deficiencies that can cause serious muscle problems including tying up and white muscle disease. Feed it with either fortified or unfortified grains to make sure your horse has the muscle for every challenge that comes his way!