What are the historical reasons for the sharp increase in obesity

Sedentary lifestyles, the increase in urban living, fast food chains becoming truly widespread.

>>2373258
They put corn in everything. EVERYTHING.

>>2373258
Obesity rates among blacks really took off and dragged up the national average. Other than that, the same thing that has caused obesity rates throughout the western world to rise: spread of unhealthy food, less active lifestyles, urbanization....

>>2373284
>American education
A ~20% increase among 10% of the population isn't gonna """REALLY""" drag up the national average, Mr. Clappy McFatburger.

America learned the value of THICK

BMI is a flawed metric, because it doesn't differentiate between muscle mass and fat. The Euro-American gap in IQ can largely be explained by the higher emphasis on bodybuilding in the US.

>>2373258
The invention of refrigerated transportation, and industrialization of food production were the major contributing factors.

Before that, most people got their food from local farms or produced it themselves. Now there are also a lot more chemical additives and preservatives that probably aren't very healthy for you. We now have an abundance of cheap, unhealthy food. Also, it really started in the 50s.

No one browsing this website actually knows. They just really get a kick out of playing armchair dietitian, for some reason.

>>2373258
The shift to a service-based economy with less physical labor

>>2373396

There was a real one in the "meat" thread.

>>2373272
>the increase in urban living

But it's rural people who are the fat ones, so how does that work?

>>2373258
Sugar

>>2373258
It literally is the fucking corn syrup.

>inb4 muh sedentary lifestyle, muh urbanization
That happened in EVERY western country yet only America became this ungodly obese.