Unless the deer have been starving for a while it will be next to impossible for them to eat too much. The feed has nutrients they need and if the deer do not need them they will find something else to eat. THey only eat what they need to so do not worry about feeding the deer too much. As for what Woodbeef was saying, he was reffering to the protien level in the feed. If I recall correctly, Woodbeef raises Bison which don't require as much protein. The main difference between Deer and Bison or Beef for that matter is that deer go thru a lot each year. A doe will drop at least 20lbs from her normal weight by the end of fawning season as the fawns feeding wear the mother down drasticly. So the doe need a lot of nutrients to keep their bodys up. Also, the bucks shed their antlers every year and grow new ones the next spring. This takes a lot of nutrients, especially calcium. So, whitetail feed is considerably higher in nutrients then most if not all cattle feed. I hope that answered some of your questions and don't worry about bothering me as I don't mind answering questions about whitetails. Take care.