The Obesity Code Lecture (Why do we get Fat?) Part 1

Jason Fung · 952K views · 2013 · 58:50

Open on YouTube

Nutrition & diet scienceMedicine & infectious diseaselecturedated

Why Hacker News recommends it

HN commenters recommend it as a compelling alternative explanation of obesity from a prominent proponent.

What it is

Dr. Jason Fung lectures on why obesity became an epidemic since the 1970s, arguing insulin and hormones rather than calories drive weight gain. He explains why calorie counting fails and touches on low-carb eating and fasting.

Recommended by 3 HN commenters across 3 different months, 2014 to 2025.

What Hacker News said

Strong rec JasserInicide · 2025-04 · on “Adipose tissue retains an epigenetic memory of obesity after weight loss”

Jason Fung is probably the world's leading research expert on obesity. If you want videos to watch on it, it starts and ends with this guy. He has done a ton of lectures and blogposts going back over a decade, and also has the stereotypical clickbaity YouTube videos. [this video]

Recommends beachstartup · 2014-02 · on “What will health nuts eat on Super Bowl Sunday? Nuts”

[this video] i'm not sure if you're being serious but it'll take longer than 20 miutes, more like 6 hours. this isn't a simple topic but the new science on it is compelling.

Recommends mikenew · 2018-04 · on “Mounting criticism of NIH's relationship with the alcohol industry”

Minor point, but Dr. Jason Fung has a very interesting and, in my opinion, compelling explanation of obesity and weight gain. He argues that the main driver of obesity in the long term is insulin rather than total calories, and because alcohol doesn't significanlty raise insulin it doesn't contribute to obesity, despite the calories. [this video]

Cites dswilkerson · 2025-01 · on “Ask HN: A friend has brain cancer: any bio hacks that worked?”

Fasting puts your cells into a "clean out the junk" mode that is quite powerful for deleting stuff, including cancer. That is, rather that being passive, fasting is quite active and uniquely potent. I had a lump in my throat near my vocal chords that I was told was a standard response to acid reflux and was inoperable. It was there for 15 years and hurt whenever I would sing. I did a 20 day fast last summer and just happened to have it examined and photographed before and after. Before the fast it was there and after it was completely gone. Valter Longo is one of the world's experts on fasting. You might want to read this article of his on fasting and cancer: [LINK] ____ Starvation, Stress R