Like with other types of alcohol, diabetics can drinks whisky perfectly safely. However, when doing so they will typically have to be more cautious than non-diabetics. The reason is that it can lead to lowered blood sugar and potential hypoglycaemia. As such, when consuming whisky or indeed any other type of alcohol when diabetic, you should avoid doing so on an empty stomach or as a replacement for meals. Additionally, you should also avoid binge drinking and keep track of blood sugar levels to avoid hypoglycaemia.