Source: Adam Smith Institute
by Madsen Pirie
“Obesity in its modern, mass form is surprisingly recent. In America, adult rates were fairly stable at around one in seven from the early 1960s to the late 1970s. Then something changed. From about 1980 the line turned sharply upward, and by 2000 roughly three in ten adults were obese. By 2022 an estimated 107 million American adults, 42.5% of the adult population, were obese, up from 34.7 million (19.3%) in 1990. Britain followed the same curve about a decade behind. … The timing is the most useful clue. Genes did not change in 1980. Willpower did not suddenly collapse across two nations. Something in the environment shifted, and the evidence points mostly at what we eat rather than how much we move.” (11/05/26)