This is such an inappropriate attempt to correlate BMI and GDP I am lost for words. There is a complex interplay between poverty, life opportunities, food affordability, the lifestyle choices available to you if you live in certain areas or fall into a lower socio-economic group and the impact on one's mental health all these things can have. It is also increasingly recognised that the GDP has its limits as a measure of prosperity/wellbeing across society. All this article risks achieving is people being stereotyped according to their body size.