Thanks for writing on this topic. So often we blame poor people for their poverty and fat people for their health problems, when in fact both conditions create a feedback cycle and are largely the result of an environment with a whole lot of cheap, unhealthy food. I wrote an article on this same topic, linking it to the CIM (carbohydrate-insulin model) of obesity, which is starting to get more scientific airplay. If you wish to read, it was published in In Fitness and Health about a week ago.

https://medium.com/in-fitness-and-in-health/the-strong-link-between-poverty-and-obesity-aed0464ec16f

Thanks for giving this isse more attention!