However, the US is not No 1 when it comes to overweight citizens.
That dubious honour goes to Kuwait – with the USA in second.
However, in terms of sheer numbers the USA is still way out in front.
The relatively tiny Arab state has an average body mass index of 27.5 for men and 31.4 for women.
In America this is 26.5 for men and 29 for women.
Adults who have an average body weight of between 18.5 and 24.9 are generally considered to have the ideal body weight for their height.
The UK is 26th in the list. The average BMI for men is 27 while for women it is 26.9.