Rack Attack is a whole herd vitamin and mineral supplement.Rack Attack is designed to help the doe's during the gestational to provide the minerals that she and the fawn need in this very important time of growth.Rack Attack also provide the vitamins and minerals the buck's needs during the time the racks are forming. Also it is important during the rut to provide the buck with the supplement during this hi stress time. If you would like more information on this product send me a message or check out the web site at www.rackattackoutdoors.com Thanks for your time, and check out our web site www.rackattackoutdoors.com