While cost of food (as a percentage of income) has declined significantly, hunger is a real issue in the US and shouldn't be downplayed.

Currently, in the US, there an estimated 40M people and 13M children at risk or experiencing hunger: https://www.ers.usda.gov/publications/pub-details?pubid=1077...

Although true, it still has nothing to do with the obesity rate. My comment was about the idea that it was a lack of food availability that prevented obesity before about 1980.