Self-reported obesity. (This had a tendency to be lower than measured obesity levels)
According to WHO classification, adults with a body mass index (BMI) of 25 to 30 are overweight, a BMI of over 30 is classed as obese. BMI is calculated as follows: Weight (kg)/height (m)²
Citation formats
Obesity - prevalence in selected countries by gender 2024
As of 2024, over ** percent of both men and women in the United States reported themselves as obese (BMI over 30), making it the country with the highest percentage of obese adults on this list. Other selected countries on the list with a high prevalence of obesity among adults included the United Kingdom, Australia, and Chile.Â
Obesity groups in the United States
In 2024, Black adults had the highest overweight and obesity rates of any race or ethnicity in the United States. Asians and Native Hawaiians or Pacific Islanders had the lowest rates by far, with roughly ** percent. In 2023, over **Â percent of people aged 65 and older were obese in the United States. This estimate has been steadily increasing since 2013 when roughly ** percent of elderly Americans were obese.
Leading health problems worldwide
Obesity was considered one of 2025’s biggest health problems: ** percent of adults worldwide stated that obesity was the biggest health issue for people within their country. Around ** percent of adults stated that mental health was the most significant problem facing their country that year.
Profit from the additional features of your individual account
Currently, you are using a shared account. To use individual functions (e.g., mark statistics as favourites, set
statistic alerts) please log in with your personal account.
If you are an admin, please authenticate by logging in again.
Learn more about how ÌÇÐÄÆƽâ°æ can support your business.
OECD. (September 23, 2025). Prevalence of obesity among adults in selected countries as of 2024, by gender [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 01, 2026, from /statistics/236823/prevalence-of-obesity-among-adults-by-country/
OECD. "Prevalence of obesity among adults in selected countries as of 2024, by gender." Chart. September 23, 2025. ÌÇÐÄÆƽâ°æ. Accessed August 01, 2026. /statistics/236823/prevalence-of-obesity-among-adults-by-country/
OECD. (2025). Prevalence of obesity among adults in selected countries as of 2024, by gender. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 01, 2026. /statistics/236823/prevalence-of-obesity-among-adults-by-country/
OECD. "Prevalence of Obesity among Adults in Selected Countries as of 2024, by Gender." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 23 Sep 2025, /statistics/236823/prevalence-of-obesity-among-adults-by-country/
OECD, Prevalence of obesity among adults in selected countries as of 2024, by gender ÌÇÐÄÆƽâ°æ, /statistics/236823/prevalence-of-obesity-among-adults-by-country/ (last visited August 01, 2026)
Prevalence of obesity among adults in selected countries as of 2024, by gender [Graph], OECD, September 23, 2025. [Online]. Available: /statistics/236823/prevalence-of-obesity-among-adults-by-country/
