Never heard of insulin causing hart attacks. We do know with insulin a T1 will die.
STOP THE PRESSES I made a BIG TYPO should read
"We do know WITHOUT insulin a T1 will die. "
cant find a link to edit my post.
high intensity exercise (such as marathon etc) is not necessarily preventative for heart attach.
Has she always had such good control? Was her HDL cholesterol low?
There may be other factors contributing to heart attack, particularly one occurring in such a young person? Maybe something congenital?
Insulin is 100% necessary to a type 1 diabetic. I doubt it was the insulin.