Guatemala (arbitrary choice) spent 35% of their income on food in 2016, but 66% were overweight or obese.

I don't know what's causing obesity, but it doesn't seem to be income, given everyone worldwide exploded into fatness around 1980.

And I'm not satisfied with flimsy hypotheses, such as a historically unprecedented worldwide diminution in human "willpower."

https://opendataforafrica.org/atlas/Guatemala/topics/Food-Se... https://data.worldobesity.org/country/guatemala-85/#data_tre...