Can Eating Too Much Meat Cause Diabetes?

A few months ago I went to an event because there will be a Free Pre-meal and Post-meal Blood Glucose Screening. I would want to know if I am a potential diabetic. I already forgot the exact term of the test results but mine says I am safe and no diabetes. I really do not have knowledge about this disease but since I learned that my father has diabetes it also became a reason why I went vegetarian.