Sugar, not fat is the killer. Incredible how for decades bad research and the likes of Ancel Keys and Phil Sokolof put the health of millions at risk.
Is this definite and scientific consensus? Nutrition research seems to change as often as JavaScript framework of the month. I saw one Ted talk that essentially said "everyone is different and no rules apply to everyone".
No. But some people like simple answers. Truth is: It's complicated and nutrition researchers are nowhere near any consensus on these questions.