Hola, I don't want to discuss the merits or advantages of Coral Calcium here, or discuss the multiple promises of cures for various diseases. My question is simple. Have any independent studies been done on the possibility of coral calcim and whether or not it contains quantities of Lead, or Radiation? I did a Google search on this, but all I got were "testimonials" from someone's mother's neighbor's aunt. I did find a cautionary note about buying from reputable companies, that some of the CC actually contained Florida beach sand or agri fertilizer.