A study published in Lancet estimated the prevalence of underweight and obesity, and their changes, from 1990 to 2022.

It reported that the combined prevalence of underweight and obesity in adults decreased in 11 countries (6%) for women and 17 (9%) for men, and it increased in 162 countries (81%) for women and 140 (70%) for men.

The countries with the highest combined prevalence of underweight and obesity in school-aged children and adolescents in 2022 were Polynesia, Micronesia, and the Caribbean for both sexes.

The study recommended that a healthy nutrition transition is needed to address the remaining burden of being underweight while curbing and reversing the increase in obesity.