I agree that a potential cause trigering diabetes could be toxic metal 
contamination. I should caution, however, that the major reason is diet, diet, 
diet, and genetics, heavy metal toxicity, etc are, in comparison, very low 
contributors. It ALWAYS makes sense to review eating habits and metabolic 
realities and correcting them before getting into these relatively rare 
"causators" 
Regards
Frank Cuns-Rial