Luvs2Ride, what are you feeding?
Sweet Feed - is garbage. It is like feeding your kids Sugar Pop's or Fruit Loops on a daily basis as their meals. Everyone else has already stated what is wrong with Sweet Feed, so I don't need to add on at all - but I would stay away from it.
Most barns, not all, but many - feed Sweet Feed because it is cheap. My barn feeds Sweet Feed and due to that, I am buying my own grain because I don't want my horse on that garbage.
My guy is on a high fiber, low sugar diet and doing very well on it.