I quit drinking back in November - I had been running about 5km each day for almost a year. I didn't change my eating habits - but I find a eat more now than before. I have managed to go from 194lbs. to 171lbs. (I'm 6'0") just by cutting out the alcohol only. I have never been in such shape before - it is quite amazing that the extra 23lbs were due to wine.
When I was playing hockey varsity - my playing weight was 210lbs - so this new body feels really skinny - it's weird.