I tell you this. I felt a change for the better in my stomach when eating almost daily Kimchi/ or sauerkraut or a great Kefir. Don’t do all daily but let’s say 5 times a week a mix either one of this. It changed, affected…soo. I was wondering about coffee as well, since I always drink in the morning ,5 am, and only eat around 12pm daily. It must affect somehow? I bet it does.
I know that coffee makes your body acidic, which in the long-term is unhealthy. I quit drinking coffee in a fasted state for years- but I can’t give empirical data on how it improved my health - only anecdotes. I do agree with another commenter about Kimchi and sauerkrat - I am Korean and find that kimchi is a probiotic that improves gut health. But I am sure there are many many more vegetables you can add to that list with a simple google search. Basically what I am trying to say is that there can’t be any positive to having an acidic body composition! imoI sleep better