@Abhishek
Dry wine, especially red wine, is especially good for diabetics as it contains a chemical that increases insulin sensitivity. Not only does it not hurt to have a little wine for a diabetic, it actually helps the diabetic patient. A good dry red wine has around 1.5 grams of carbs (or sugar) per oz. Many researchers have discovered that citizens of France, Italians and the Mediterranean show a considerable reduction in diabetes and wine is the suspected cause.
According to researchers red wine has a strong affinity towards the protein called PPAR-gamma, which is used in diabetic drugs. PPAR-gamma controls glucose absorption in the cells and also improves insulin intake. Red wines have more than four times capacity to bind PPAR-gamma. The strong protein binding capacity of red wine comes from flavonoid epicatechin gallate and polyphenol ellagic acid, two major compounds with highest binding capacity but it is important to limit the intake of wine as wine also contains ethanol, which will add to your calories.