From Ketofest 2018. Is saturated fat bad for health? A keto diet usually ends up containing more saturated fat, which has long been thought to cause heart disease. In this talk, award-winning journalist Nina Teicholz will review the history of how, some 70 years ago, we came to believe that saturated fat and dietary cholesterol are bad for health (the “diet heart hypothesis”): is there any truth to this idea? What was the evidence? Teicholz will also talk about the politics on nutrition: how a hypothesis has remained national policy for so many decades despite a weak evidence base: what has been the role of government, the American Heart Association, and the food industry, among other actors? Finally, she will discuss the arguments for why saturated fat can be said to be good for health.