I have found that African coffee triggers fireworks in my gut after drinking it a few days while American coffee (South or Central) is fine. All the coffee that is produced in the UK or Europe is from Africa, unless Colombia or a specific American country is specified. I am not a special coffee lover and do not notice any difference in the taste, just in the effects.I have searched the Internet and have not seen this mentioned elsewhere. Can anyone confirm this from their own experience? Or perhaps someone wants to try it out and see if it helps them.