Hello and welcome to MedHelp's forums. We appreciate your question and taking the time to post. Diabetes 1 and 2 are both linked to a genetic predisposition to develop them. However, other factors will play a role. They've done studies with identical twins in which one has diabetes and the other does not. If your twin has type 2 diabetes though which would indicate you have a genetic predisposition, the chance of developing it yourself is 3 in 4 times. Here's some information on genes and diabetes. http://www.diabetes.org/diabetes-basics/genetics-of-diabetes.html.
Please always get regular physicals and check with your doctor for more information. We wish you the best of health
What you eat can play a part in developing diabetes. The Pima Native Americans of S.W. US developed a propensity for diabetes once they started eating the Standard American Diet.
There is a very strong genetic link for type 2 diabetes. However, remember also that many families eat the same.
Diet and lifestyle have a huge impact on development of T2 Diabetes. Adopt low carb way of eating and maintain an active lifestyle. Keep weight normal, manage stress.
This is important even if your sugar levels are apparently normal (the damage starts internally long before it becomes apparent outwardly with symptoms of high blood sugar and other issues).
You will then be doing your best to ensure that you minimize your risk of developing T2D.