Understanding that is a very simplistic explanation of why those two might be different, but that kind of diving into those sort of details is what I think people like. (recode.net)
However, insulin deficiency is a far too simplistic explanation for diabetes. (myersdetox.com)
Note: this is an overly simplistic explanation of how this all works and there are many other factors involved, but this is the basic idea. (howtogeek.com)