And deny you the pleasure of proactively and sufficiently supporting your argument? Nah -- proof is on the claimant.

I proved my claim sufficiently: zinc is not currently recommended as a treatment or preventative for COVID-19, per my linked source (which is current and, unless you are actively in the research domain, reasonably authoritative). I will admit that I did not communicate that they did have a carve out in the recommendations for clinical studies regarding zinc, but I did not feel that was material to the discussion..