http://www.truthaboutabs.com/saturated-fat-is-not-evil.html
Is Saturated Fat Evil, or Not So Bad After All?
The myths, lies, and misconceptions about saturated fat and your health.
The "Fact" that saturated fat is bad for your health has never been proven by legitimate studies
First of all, did you realize that although doctors, nutritionists, fitness professionals, and the media all have told you that it's a FACT that saturated fats are bad for you, this "FACT" has actually never been proven!
It's actually not a "fact" at all. It was a hypothesis! This goes all the way back to a flawed research study from the 1950's where a guy named Ancel Keys published a paper that laid the blame on dietary fat intake for the increasing heart disease phenomenon.
However, there were major flaws to his study. For one, in his conclusions he only used data from a small portion of the countries where data was available on fat consumption vs heart disease death rate. When researches have gone back in and looked at the data from all of the countries, there actually was no link between fat consumption and heart disease deaths. So his conclusions were actually false.
Second, his blaming of fat intake for heart disease was only one factor that was considered. There was no consideration of other factors such as smoking rates, stress factors, sugar intake, exercise frequency, or other lifestyle factors.
Basically, his conclusions which blamed heart disease deaths on fat intake were really just a shot in the dark about what a possible cause may have been, even though all of those other factors I just mentioned, plus many others, may be the bigger cause.
Unfortunately, Keys study has been cited for over 5 decades now as "fact" that saturated fat is bad for you. As you can see, there certainly is nothing factual about it.