WHO / Conor Ashleigh
A group exercises in a small park below the Thaksin BTS station in Bangkok, Thailand.
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Controlling the global obesity epidemic

At the other end of the malnutrition scale, obesity is one of today’s most blatantly visible – yet most neglected – public health problems. Paradoxically coexisting with undernutrition, an escalating global epidemic of overweight and obesity – “globesity” – is taking over many parts of the world. If immediate action is not taken, millions will suffer from an array of serious health disorders.

Obesity is a complex condition, one with serious social and psychological dimensions, that affects virtually all age and socioeconomic groups and threatens to overwhelm both developed and developing countries. In 1995, there were an estimated 200 million obese adults worldwide and another 18 million under-five children classified as overweight. As of 2000, the number of obese adults has increased to over 300 million. Contrary to conventional wisdom, the obesity epidemic is not restricted to industrialized societies; in developing countries, it is estimated that over 115 million people suffer from obesity-related problems.

Generally, although men may have higher rates of overweight, women have higher rates of obesity. For both, obesity poses a major risk for serious diet-related noncommunicable diseases, including diabetes mellitus, cardiovascular disease, hypertension and stroke, and certain forms of cancer. Its health consequences range from increased risk of premature death to serious chronic conditions that reduce the overall quality of life.

The response: making healthy choices easy choices

WHO began sounding the alarm in the 1990s, spearheading a series of expert and technical consultations. Public awareness campaigns were also initiated to sensitize policy-makers, private sector partners, medical professionals and the public at large. Aware that obesity is predominantly a “social and environmental disease”, WHO is helping to develop strategies that will make healthy choices easier to make.

In collaboration with the University of Sydney (Australia), WHO is calculating the worldwide economic impact of overweight and obesity. It is also working with the University of Auckland (New Zealand) to analyse the impact that globalization and rapid socioeconomic transition have on nutrition and to identify the main political, socioeconomic, cultural and physical factors which promote obesogenic environments.

Publications

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The UNICEF-WHO-World Bank joint child malnutrition estimates (‎JME)‎ standard methodology: tracking progress on SDG indicators 2.2.1 on stunting, 2.2.2 (‎1)‎ on overweight and 2.2.2 (‎2)‎ on wasting

WHO, UNICEF and the World Bank launched the “Joint Malnutrition Estimates Standard Methodology”. The Joint Child Malnutrition Estimates (JME)...

Sponsorship of health professional associations by manufacturers and distributors of commercial milk formula: model policy

The World Health Organization (WHO) has recommended that, in order to promote, protect and support breastfeeding, prevent obesity and noncommunicable diseases,...

Sponsorship of health professional associations by manufacturers and distributors of commercial milk formula: case studies

The World Health Organization (WHO) has recommended that, in order to promote, protect and support breastfeeding, prevent obesity and noncommunicable diseases,...

Sponsorship of health professional associations by manufacturers and distributors of commercial milk formula: alternative funding resources for events

The World Health Organization (WHO) has recommended that, in order to promote, protect and support breastfeeding, prevent obesity and noncommunicable diseases,...

Guidance for monitoring healthy diets globally

Monitoring of dietary intake at national and global levels is becoming increasingly important with the changing food systems and diets. Better measurement...

Healthy diet metrics: monitoring of healthy diets globally: a call to action

Unhealthy diets are recognized globally as key contributors to morbidity and mortality. As food systems and diets evolve globally, the importance of monitoring...

WHO acceleration plan to stop obesity

At the 75th World Health Assembly in 2022, Member States adopted new recommendations for the prevention and management of obesity and endorsed the...

Levels and trends in child malnutrition: UNICEF/WHO/World Bank Group joint child malnutrition estimates: key findings of the 2023 edition

 Child malnutrition estimates for the indicators stunting, wasting, overweight and underweight describe the magnitude and patterns of under- and overnutrition...

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