We know for sure that obesity is one of the single biggest increases in all-cause mortality. We know it is directly linked to most of the top disease-related causes of death.

> But we do know that diet and exercise work.

Do you think the ~40% of American adults that are obese don't know that they should eat better and exercise more? That they don't understand that they're cutting decades off their life?

Yes, it is 100% within the power of the overwhelming majority of them to fix things. And I think evolution has kept shame with us for a purpose and that it can be a useful emotion. But I also think it's plainly apparent that neither are causing a real reduction in obesity.

So, should all the people in the world that are obese just continue to fail at losing weight despite knowing what they should, in theory, be doing to resolve it? Because, despite being obese being one of the riskiest things you can do in life for your health and lifespan, we don't know if there might maybe be long term effects from something we know will get them to lose weight?

This room is on fire! I could run out that door over there - I know if I open it and go through I'll leave this room that is currently on fire - but, should I? What if whatever is on the other side of the door is just as bad as being on fire, or worse?!