Make sure you are getting enough of the nutrients (vitamins) and micronutrients (minerals) that your body needs. Hormones which would normally be called in to help out are blaster restricted by alcohol. Try to include wheat bran, oats and fibre rich cereals, fruits and green vegetables in the daily diet. They actually slow down your metabolism and encourage more fat deposits in your body.
If you are keeping track of your calories you can be adventurous with your snacks. Sugar intake should be avoided completely by a diabetes patient. If you didn't get enough water during the day you will continue to dehydrate through your sleeping hours.