Of course we 'know' nothing for sure - which is a truism that applies both to the original comment and to yours... but my point is that you should rarely be con

Of course we 'know' nothing for sure - which is a truism that applies both to the original comment and to yours... but my point is that you should rarely be convinced by a single study. That said, I have no specific criticism on the paper you refer to. It might be that the lower risk of heart disease is outweighed by an elevated risk for e.g. cancer? In that way both results can be true.