I was easily drinking a gallon of coke a day when I started. That was the first thing that I did, and I had to go cold turkey.
The detox was HORRENDOUS for about 3 days, but I did it, and it was a major step towards being able to change my way of eating and lose my first 100 pounds.
Now it's been 20 months since I had more than one every few months while out drinking.
I have come way too far to quit now!