Didn't we just read somewhere that vitamins/supplements are a waste of money i.e. they really actually do nothing for one's health. From what i have observed, deer find minerals they need on their own, and do just fine around here, and in the bush.
In our yard we have deer, fox, turkey, rabbit, coon, squirrel, and all kind of bird. They are mostly all welcome. The Eurasian bird, starling, and blackbird, are not welcome, and they get killed when they come around. The garden is fenced to keep deer away, but rabbit gets in once in a while. We live inside the city limit; cannot hunt deer on our 1/3 acre.
The lady landscapes with plants that deer don't seem to care for mostly. Our yard has lots of pretty flowers deer don't like or eat. Learning what deer don't eat took awhile; they like to eat just about everything. One individual deer will eat what all the other deer don't. The lilac bushes are strange looking things, having been sculpted for years by the deer. Won't mow any more this year; saving the grass for the deer, and rabbit to eat this winter.
Neighbor dogs allowed to run loose in violation, are the biggest problem i have. It irritates me to have to watch out for what they leave. If we lived outside the city, dogs would not be a problem.