Have also made the change. Normally the sugar free variants have a after taste that isnt the best but I found that with Zero Coke the after taste isn't as noticeable. I asked my doctor if it was safe to drink Zero Coke. He said check your bloods after you have drank it. Bastard made me do the work and rightly so.I just changed to COKE ZERO. Easy fix for me.
When you drink regular COKE, you really notice the sugar hit. But damn its good though.