How toxic is your favorite pop/soda???

I finally gave up soda, mostly coke, pretty much, an occasional diet. I was told this winter I'm now borderline diabetic, which is no surprise, I was hypoglycemic for many years. I love tea and ice tea, but mostly just water.

Now that I'm working again (at 69) I drink maybe 1/4 to 1/2 cup coffee sipping through the morning. Use a well insulated and covered cup.