Diabetes : Heriditary?

I just want to know if there are scientific basis about diabetes being a hereditary disease. I have heard a few times that those who have a history of such should better be prepared or take necessary precautions cause it normally runs in the blood. At young age, i was taught by my parents to lessen my sugar intake because my mom’s family has a history on being diabetic. I am turning 27 this year and i always make it a point to have a little sugar whenever a need arises but im still unsure if im doing the right thing. Is it really hereditary?

In: General Health