Would love some feedback on the best top dressing mineral/vitamin supplement. I would be feeding on top of whole oats. I'm in Alberta Canada so limited availability of some brands. In the past I've used Tribute Equine Essential K (can't get in my area) and Hoffman's Mineral. Two more I'm debating between are Mad Barn Omneity and Equi-Boss Chelator Mineral. Below are the breakdowns for each of these. The Omneity works out to about half the cost daily.

I had my hay analyzed and while the details are way beyond my knowledge I was told a regular vitamin/mineral supplment would be fine as there was nothing majorly missing.

Purina Optimal ration balancer

I sent you a PM :)