> My personal biases tell me that people don’t have great self control. Shifting social norms, such that over-consumption is less socially acceptable might help.
This is the key. We are social animals and we heavily regulate what we eat based on what other people eat.
But we have been socialised to avoid strong judgement of obese people.
Personally, I refuse to eat with obese friends unless they are actively trying to eat a healthy and well proportioned meal.
In the same way that I don't hang out with friends when they smoke.
Think about the difference in social response you will get if you admit you don't eat with obese people vs you won't sit at a table of smokers while they smoke!
But I don't care. I've been obese and I'm not going back.