More coffee health claims

While drinking my morning coffee I ran across this article during my second cup. Donklephant, which is a political blog has a quick article on how coffee may be good for you including the following claims

There’s evidence, Arab noted, that the beverage may protect against certain types of colon cancer, as well as rectal and liver cancer, possibly by reducing the amount of cholesterol, bile acid and natural sterol secretion in the colon, speeding up the passage of stool through the colon (and thus cutting exposure of the lining of the intestine to potential carcinogens in food), and via other mechanisms as well.

Dr. Lenore Arab of the David Geffen School of Medicine at UCLA is the Dr Arab mentioned in this article.

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