Are the Irish unique when it comes to metabolizing coffee?
Local groups of people sometimes share genotype characteristics. Better studies use a broad spectrum of people - a less biased sample set.
So the answer to your question is: we can't know, from this study.
Local groups of people sometimes share genotype characteristics. Better studies use a broad spectrum of people - a less biased sample set.
So the answer to your question is: we can't know, from this study.