Researchers from the Bartholin Institute at the Danish national hospital have found a correlation between intake of refined sugar and type-1 diabetes. There is still quite a bit of controversy over whether an increased intake of refined sugar does lead to type-1 diabetes, with researchers from the Danish Diabetes association dissenting.
Unfortunately, the only information I could find about this research was in Danish, but feel free to read the (translated) newspaper article here: http://translate.google.com/translate?js=y&prev=_t&h...