A commentary in the current issue of the British Medical Journal (BMJ) suggests that saturated fat is not really so bad after all. The article has the media buzzing, with headlines exonerating saturated fat sprouting like mushrooms throughout cyberspace and print media alike. My most recent Google search of “saturated fat” limited to news retrieved 20,000 sites.
Since the new paper is just a commentary — one doc’s opinion — and not a new study, and since this opinion has been asserted many times already, I’m not sure I really get the reaction. But hey, I just work here. Let’s deal with it.
Is it, in fact, time to absolve saturated fat? No, it’s not. But then again, it was never time to demonize it in the first place. I will lay out my case that we are ill-served to think of saturated fat as either scapegoat or martyred saint.
1) Ancel Keys was never really wrong.
The case against saturated fat, its implication in the development of atherosclerosis, inflammation, and chronic diseases, notably heart disease, involves a vast expanse of research over many years by thousands of researchers around the world. But dealing with all of that in this column would be a terrible bother, so let’s just blame it all on Ancel Keys. Keys was certainly among the first to emphasize the association between saturated fat intake and heart disease.
The temptation to absolve saturated fat comes along with a temptation to indict Dr. Keys of crimes against dinner. But, Ancel Keys, while perhaps not quite right, was never really wrong.
Keys looked at rates of disease around the world and correctly noted that heart disease was more common in societies that ate more meat and dairy. His mistake may have been to look past that dietary pattern for the “active ingredient” in it, which led to the convictions of dietary cholesterol, saturated fat, and to a lesser extent overall dietary fat.
There’s much that could be said about this. Whole columns could be written about dietary cholesterol, dietary fat, and saturated fat and ways we went wrong. In fact, I — along with innumerable others — have written just such columns. Simply click the inserted links.