There are three main ways drinking alcohol to excess can be a factor in causing diabetes:
1.Heavy drinking can reduce the body’s sensitivity to insulin, which can trigger type 2 diabetes .
2.Diabetes is a common side effect of chronic pancreatitis, which is overwhelmingly caused by heavy drinking.
3.Alcohol contains a huge amount of calories – one pint of lager can be equivalent to a slice of pizza. So drinking can also increase your chance of becoming overweight and your risk of developing type 2 diabetes.so The only thing is reduce the quantities of your drinkd\s.