Certain methods of preparing coffee (such as boiling ground coffee beans for long periods) may lead to a higher blood cholesterol level.What am I to make of that?
A couple of points:
Coffee contains no cholesterol as cholesterol is only found in animal fats. (I am assuming that they are not boiling the beans in milk.)
Coffee contains scant levels of fat, mostly flavouring oils, and the levels of saturated fat will be at levels only two fifths of four ninths of scant.
So I can't see coffee being a direct cause of blood cholesterol.
But could some extractable compound in the coffee be able to trigger cholesterol production, just as statins can reduce it? Maybe.
To prove it you would have to do a randomised clinical trail where some people are given over-boiled coffee and others are not, while controlling for diet, medical history and genetics. Whether the ethics committees would let you attempt to intentionally raise a person's blood cholesterol in the name of research is a moot point.
I have asked the NHF for a reference to this research.
I'll let you know what they say.