…according to an article in the American Journal of Clinical Nutrition. A review of the scientific literature looked at various populations at baseline, noting alcohol consumption, then determined who developed type 2 diabetes over subsequent years. Folks with light to moderate alcohol consumption were 20% less likely to develop diabetes.
Wine is one of the potentially healthy components of the Mediterranean diet
This doesn’t prove that alcohol prevents diabetes. Alcohol intake may instead just be a marker for other factors that do prevent diabetes. For instance, maybe drinkers are genetically less susceptible to diabetes, or they exercise more.
Advanced Mediterranean Diet 