Some links.
[link|http://www.sciencedaily.com/releases/2000/02/000216082501.htm|ScienceDaily] story on family from Limone, Italy with very high levels of cholesterol but no heart disease.
[link|http://www.cardiacsurgery.com/html/cholesterol.htm|CardiacSurgery.com] on cholesterol:
Blood Institute recommend what's called the step It Diet, you should have:
* Thirty percent or less of total daily calories from fat.
* Less than 7 percent of total daily calories from saturated fat.
* Less than 200 milligrams of dietary cholesterol a day.
* Just enough calories to achieve and maintain a healthful weight.
Studies have found that this diet can reduce total blood cholesterol levels by 6 percent to 21 percent, depending on what you used to eat.
The emphasized section is the closest I've found to the 80% is non-dietary quote I'm thinking of, but it's not it. Perhaps these will give you an idea of what to search for. There were several more stories on cholesterol at ScienceDaily.com.
HTH.
Cheers,
Scott.
