Originally Posted by Sly

I was drinking 4 sugar-free Red Bull's daily for 2 years. Last summer I decided to try the cold turkey route. It was an absolute disaster. I felt terrible, my head was killing me. That experiment lasted 2 days.

Earlier this year, I once again decided that it was time to cut back. I am now doing 2 instead of 4, and plan on dropping it to 1 next week.

Here is what I did:
1) Isolated the times that I was drinking the items. I had 2 for breakfast and 2 for lunch.
2) Determine which of those 4 would be easiest to eliminate and replace with another beverage. I chose lunch, the replacement beverage was a 16 oz glass of water.
3) Focus on drinking only 3 daily for 2 weeks. That was the only goal. If I cheated, I would have to do something really terrible that I absolutely would not want to do. In this case, it was donate money to a particular presidential candidate. That was very good incentive for me and worked like a charm. After about a week, I got used to the water replacement and the 2nd week was not such a big deal.
4) After the 3 can routine became no problem, I reduced to a 2 can routine by simply eliminating one of the morning beverages. I chose not to replace as it wasn't really necessary. The presidential donation penalty was still in place.

I am now doing 2 daily instead of 4 and drinking an additional 16 oz of water daily. Very beneficial all around.