A new graphic released today details the country's with the highest and lowest BMI's, and shockingly, America is not at the top spot for the heaviest adults.
The chart is topped by Kuwait, where the average body mass index is 27.5 for men and 31.4 for women.
America sits at second place, averaging 26.5 for men and 29 for women.
The ideal body mass index for adults is between 18.5 and 24.9.
The United Kingdom, a country that is particularly worried about their rising obesity levels, is 26th on the list, with an average of 27 for men and 26.9 for women.
Heavier countries include Germany, Greece, and Argentina.
Though Australia is known for being an outdoor-loving country, it is higher than the UK, at 11th on the list.
Unsurprisingly, some of the poorest countries in the world are at the lowest on the list, with Asian and African countries being the thinnest.
The lowest BMI average is Bangladesh, with men at 20.5 and women at 19.8
Others include Ethiopia, Rwanda, Kenya and Eritrea.
Another surprising finding is the wide discrepancies between men and women in some countries.
In Jamaica, for instance, the average BMI for a man is 24.8 while women are at 29.8. Wide BMI discrepancies between the sexes are seen in Lesotho, Trinidad and Tobago, and Haiti as well.