Let me first say that LMN movies are my guilty pleasure. I enjoy them for the cheese. In fact, the cheesier, the better. They don't have to make sense at all. As long as they are over the top and filled with scandalous plot lines, I will forgive cheap productions.
That being said... This film's screenwriter must not have anyone with Diabetes in their life or have known anyone. Type 1 Diabetes can be extraordinarily dangerous but not in the way it is depicted in this film. I have yet to see a realistic portrayal except in my own film I made. This isn't a plug, I'm not leaving my website, I just had to write about the laughable depiction in this otherwise cheesy LMN goodness.