Yeah I used to do 2-4 2-liters per day before I gave it up around 12 years ago. I’m hoping that, to the extent it does damage, the effect stops when you stop drinking it.
I had an injury I thought was unrelated, but could be. Premature ankle joint wear. On inspection from a CAT scan machine, I was told I seem to have some abrasions on the bone around the damaged area, likely from or similar to osteoporosis and/or osteoarthritis.