I've read about folks using zinc sulfate taste tests to check whether or not they have sufficient zinc levels. Here is an MDA link on it: http://www.marksdailyapple.com/forum...p/t-16750.html

Any info on *other* minerals and taste tests? Here is a mineral taste test kit I've looked at multiple times, wondering whether or not it would be accurate...

Any thoughts, experiences or resources to share about this? I'm very interested!