Macro-minerals; Calcium and phosphorus
For example, Yoshimi et al. (1996) found that frogs crickets raised on cricket diet then dusted with
mineral supplement developed hypercalcemia and tissue mineralization from too much of either
dietary calcium or vitamin D3. Calcium can be absorbed through the skin of adult amphibians
(Kingsbury and Fenwick, 1989), and through the gills in larvae (Baldwin and Bentley, 1980).