Correct me if I am wrong but in the context you are using 'precipitate' refers to 'depositing' which, by that definition, means silver being 'deposited' in the kidneys, am I right?
Sorry, but it simply can't, won't, never has, and never will happen!
My research, (comprehensive, and over several years), states that it is BIOLOGICALLY IMPOSSIBLE for that situation to occur...The body will NOT accumulate silver when produced in the CORRECT manner, ie; TRUE ELECTRO-IONIC Colloidal Silver . Proteins, nitrates , Compounds blah...blah is a different story, but true EICS simply will NOT have this result, (well not from my personal experience of ingesting it and from all the research I have done to date)! The question is...Do you have an open or closed mind on the subject? If it's open, you have learned something here. If it's closed, then it ends right here.
But of course, if you can prove me wrong, I am all ears but don't ask me to quote sites for reference as I have done my head in enough over this 'silver' thing and I am well satisfied with the research I have done.