Get this, my Aunt us trying to get me to switch to a lower protien feed, cuz I free range. For some reason she believes feeding 20% protein feed, in addition to free ranging is harmful to them internally.
This is false, it's actually beneficial if they're not getting what they need during free range including certain vitamins, protien, or other essential nutrients that may not be available.
The only low protien stuff in this area is Layer feed. I don't do layer, nor am I lowering their protien for no reason.