Also, I read somewhere they spray the shells with a fungicide of some
sort??

Try canned salmon, it's loaded with calcium.

Stay away from caffeine and too much salt.


>Anyone hear of soaking an egg shell in lemon juice overnight to make a high
>calcium tonic?  I remember reading something about this but can't remember
>where.  I seem to recall that the acid in the lemon juice will leach out
>the calcium carbonate from the shell.  Any thoughts as to if this is
>plausible and if so, how much calcium would one shell yield???
>