Comment by Mistletoe

1960–1962: About 13% of adults were obese

1971–1974: About 5% of children were obese

1980: 13.4% of adults were obese

2008: 34.3% of adults were obese

2009–2010: 36% of adults were obese

2014: 36.5% of adults were obese

2017–2018: 42.4% of adults were obese

A truly astonishing set of data. I assume this has never happened in human history at this scale.