Google Medic and Subsequent updates

Hello,

I am looking for the documentation, if any, of Google's Medic update. I am working on my affiliate website and am considering adding health products but I am concerned that because they are supplements,. etc that this may disproportionately affect my rankings.

Clarification, I need reputable sources on Googles Medic update, not some 'local seo expert'.

You can search on Google and get the information you are looking for