Hi,
Our tests (previously mentioned)  to encourage  pigmentation from excess or
slow removal of excess silver are proceeding.  To date it is believed that
there is a close relationship with dietary fat removal from the body. From
this we assume that bile production and availability needs to be
encouraged.  How? Take the juice of one (or more) lemon before any other
food in the morning. Argyria seems to be started when there is poor bile
production and availability. Bile is involved in emulsifying and also
encouraging healthy gut bacteria.  This matter needs further review/
discussion. 
regards,
Robert Beasley