Haven't got a clue but I haven't noticed any difference in the taste
and am still alive !

You probably wouldn't notice small amounts taste wise or health wise
immediately.
I think arsenic is one of those elements that builds up in your body over
time before its effects start to be noticeable - like lead, by which time it
is usually to late to undo the damage done. You may still live to be 100 but
it's the sort of thing that could knock off anything between a day or two
and a year or two, depending upon many factors. Of course larger doses are
fatal anyway.
--
David
.... Email address on website http://www.avisoft.co.uk
.... Blog at http://dlts-french-adventures.blogspot.com/