Australia and New Zealand have similar obesity problems as the US and Canada.
Europe is just catching up to the mistakes the US has made since the 1980s. Some nations are faring better due to their culture (strongly ingrained behaviors) holding back the mistakes, such as eg France.
[0] WHO report: Europe can reverse its obesity “epidemic” | https://www.who.int/europe/news/item/03-05-2022-new-who-repo...
"The report, launched at a press event on 3 May and presented at the European Congress on Obesity, reveals that in the European Region, 59% of adults and almost 1 in 3 children (29% of boys and 27% of girls) are overweight or living with obesity. Obesity prevalence for adults in the European Region is higher than in any other WHO region except for the Americas."