I would think soda is worse. I've heard some ray peat advocates say milk and sugar with coffee helps digestibility. Not sure how you take your coffee. 

 lol, I’m sure it is that’s why I put in quotes.
Cream only is how I like it. Also if I switch to tea for a week the coffee tastes real good when I get back to it.☕ 

 I just don't drink coffee at all... It's just diarrhea fuel for me... And I don't enjoy the urge to bounce off the walls either... 

 Lol, ya it’s a habit. I’m not even sure if the caffeine effects me, I don’t really notice it when I don’t have one.