Even though it is well known that alcohol in excess is not good for even a normal person, it is the most common drug of abuse. Alcohol damages the liver. It can lower blood sugar levels and cause hypoglycaemia, especially for those who are on insulin and oral drugs.

This is especially true if not enough food is taken with alcohol due to impairment of glucose generating capacity of liver. Alcohol is absorbed from stomach and reaches the liver through blood stream. It is metabolised and the capacity to release glucose from its reserve stores is blocked. Alcohol provides empty calories comparatively more than even carbohydrates and proteins, almost 7 KCal !