Same here. 2 liter a day habit of coca cola until about 8 years ago. The fizz and sugar combo is like crack. I quit by buying seltzer water and cutting it with apple juice. Tasted like a Martinelli's sparkling cider. Put progressively less and less apple juice until I was drinking straight seltzer water. Still addicted to the fizz though. Went from 6'4" 275 to about 225 now. I can't drink coke now. It just tastes like straight syrup.