To me professor Robert Lustig’s talk was the most “rewarding” of the Ancestral Health Symposium. Now everyone can see it.
To fully appreciate the video you need to simultaneously open Lustig’s slides to see them. It also helps if (like me) you are intrigued by the biochemistry of sugar, insulin and leptin – and how that relates to regulating our weight. Also observe that the video is spliced wrong: at 09:00 skip to 18:36 at the end skip back to 09:00.
To summarize Lustig puts (too much) insulin front and center as the cause of common obesity. The likely reason is ingesting excessive amounts of sugar/fructose (or even more massive amounts of starch/glucose) and a lack of fiber to slow the absorption.
Interestingly, the high levels of insulin blocks leptin, giving us leptin resistance, and in the long term obesity. There you have it: the insulin- and the leptin-people are both right.
Let’s see if this talk scores 1,5M viewers like his “Bitter Truth” talk did on YouTube. I see Lustig chose a better tie this time, just in case. Too bad he forgot removing his name tag instead. But those are details: Lustig is a very good speaker with lots of insights.