World Obesity Federation
Driving global efforts to reduce, prevent and treat obesity.
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MAPPS II Project
Are you a healthcare professional, person with lived experience of obesity, or involved in healthcare policy? Take part in our MAPPS II survey! Share your experiences & help improve obesity care and prevention.
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Register for ICO 2026 in Mexico!
The International Congress on Obesity (ICO) 2026, our flagship international event, will take place in Mexico City in July 2026!
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Global Obesity Observatory
At the World Obesity Federation we have been collating data for over 20 years. This database is online and available to view in various formats.
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Our Members
Our members are organisations representing healthcare professionals, researchers, policy specialists and those with lived experience of obesity.
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Our Image Bank
Our Image Bank forms a gallery of free-to-use images to ensure accurate, non-biased, respectful images are widely available.
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Relive the highlights of ICO 2024!
From groundbreaking sessions to inspiring speeches, relive the excitement and key takeaways that made this year’s congress unforgettable. Watch our highlights video on our YouTube channel
WATCH NOWRecent News
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Blog Jun 25, 26
Obesity & HIV/AIDS: common causes, common solutions
The growing overlap between HIV & obesity suggests the future may lie in more integrated, people-centred health systems.
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News Jun 17, 26
Brazil convenes national experts to strengthen obesity prevention and care as part of global MAPPS II initiative
On 11 June 2026, experts convene in Brasília to examine Brazil's obesity challenge and identify priorities for action.
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News Jun 12, 26
Landmark study in Chile shows food policies can reduce childhood obesity - here’s what it means for the world
A new study in Chile provides strong evidence that a package of food environment policies can reduce rates of obesity.
Read PostWorld Obesity Resources
We have a wide range of resources available for you to download, read, use or purchase.
- Policy Dossiers - These provide evidence and resources to help policymakers, NGOs and others.
- Journals - World Obesity publishes four scientific, peer-reviewed journals.
- Image Bank - A gallery of free-to-use images to ensure accurate, non-biased, and respectful images are widely available.
- Resource Library - We produce a range of statements, responses, papers and reports related to obesity.
- Obesity: The Other Pandemic of the 21st Century - This work features contributions from leading experts in the field of obesity management and prevention.
Our Members
World Obesity Federation is a membership organisation representing national and regional associations dedicated to the study and management of obesity and related comorbidities.
Our membership body currently comprises more than 80 associations in over 100 countries and territories.
Our members are organisations representing healthcare professionals, researchers, policy specialists and those with lived experience of obesity. As well as a membership programme for non-profit organisations, World Obesity runs a Champions programme for partners.
Find out moreUpcoming Events
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ICO Jul 15, 26
International Congress on Obesity (ICO) 2026
We are delighted to announce that ICO 2026 will take place from 15–17 July 2026 in Mexico City, Mexico.
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ICO Jul 14, 26
Obesity Lived Experience Global Summit 2026
At ICO 2026, this Summit will bring together people living with obesity or related conditions
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SCOPE Jul 14, 26
SCOPE School Mexico
In conjunction with ICO 2026, SCOPE School is coming to Mexico City, Mexico, this 14 July.
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