keep reading up on here and I think you might find some mineral mixes you can make yourself much cheaper in the long run. Personally, I don't spend the money on products with big endorsements on the label or often times not even a picture of a deer on the label. A lot of the money being spent is just buying into their propaganda. Some corn, apples, or even peanut butter will do just as well. For what it is worth, I have only put out corn during long cold spells with snow coverings as supplemental feed. Too cheap to spend the money all year when they have plenty to eat right now. A mineral mix on the other hand, is not a bad investment in my opinion.