Taste Test for Minerals To Determine Deficiency

[jenbooks]

I was thinking of buying this kit even though I'm strapped financially:

http://www.autismcoach.com/e-lyte_liquid_minerals.htm

I feel I need minerals but I don't like capsules with fillers and I don't know what I need. This way of taste testing seems good.

Any thoughts? Has anyone heard of or tried this?