'When the US government introduced "Dietary Goals for the United States", they did not have unanimous support. The guidelines, which urged the public to cut saturated fat from their diet, were challenged by a number of scientists in a Congressional hearing. The findings were not based on sufficient evidence, they argued.
They were ignored. Dr. Robert Olson recounts an exchange he had with Senator George McGovern, in which he said: "I plead in my report and will plead again orally here for more research on the problem before we make announcements to the American public." McGovern replied: "Senators don't have the luxury that the research scientist does of waiting until every last shred of evidence is in.'1
Senator McGovern might as well have said. 'Listen son, we know that saturated fat raises cholesterol and causes heart disease, we don't need any damned evidence.' Of course, they didn't have any evidence at all. None. But they still managed to find saturated fat and cholesterol guilty. Some people would call this proper leadership. Make a decision and go with it.
I would call it monumental stupidity.
As you can see I am stepping back in this blog to look at saturated fat – again. Because I am going to share some thinking with you, which I have not really shared before. Some of you will know that I am a 'first principles' kind of guy. I take very little at face value, and I am certainly highly critical of accepted wisdom: I usually translate it, in my mind, into accepted stupidity.
So, I am going to try and explain to you that saturated fat cannot raise blood cholesterol levels. By which I mean low density lipoprotein levels (LDLs) as this is the substance which someone or another ended up calling 'bad' cholesterol. It is the lipoprotein that is thought to cause CVD.
However, LDL is not cholesterol, it never was. We do not have a blood cholesterol level – but we are seemingly stuck with this hopelessly inaccurate terminology for all time.