It is a simple fact that most obese outlive must underweight. Why would you call that a rationalization? It is better to be obese than underweight. Ideally I suppose though it is best to be in the ideal weight range.
But the NHS does not seem to acknowledge this in its Brave New World policy
There is a reason why some statistics say obese outlive the underweight.
Many of those underweight folks used to be obese. But then they got cancer and by the time they died they were underweight.
To avoid cancer and other wasting diseases it’s best to stay normal weight and active. If you’re sedentary you’re at risk.
How about morbidly obese vs normal? What are the stats on that?