Complete feed questions?

I've not experienced what you are speaking of, but as far as feeding complete feeds, we have switched to that and love it. I have everything from broodmares to weekend competitors and all are maintaining their weight, healthy and really happy. And, as a matter of fact, I have an older mare that I've tried everything to get her to gain without much luck, but since switching to the complete feed, I think she's put on a little.