A Montana-registered global scientific society advancing evidence-based obesity medicine  |  Incorporated 2026
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Founded 2026 · Montana, USA · Global Reach

Uniting the World Against
Obesity

The International Society of Obesity (ISO) is the global scientific society for obesity medicine professionals — advancing research, education, and evidence-based practice to transform care for the 1 billion people living with obesity worldwide.

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Adults with Obesity Worldwide
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Obesity Rates Tripled Since 1975
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Annual Deaths Attributable to Obesity
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Annual Global Economic Burden
Who We Are

A Global Platform for Obesity Medicine

The International Society of Obesity (ISO) is a collaborative scientific society that brings together clinicians, researchers, policymakers, and allied health professionals to address the complex, multifactorial challenge of obesity.

ISO fosters cross-disciplinary collaboration — uniting endocrinologists, bariatricians, dietitians, psychologists, and public health professionals under one global banner. We translate science into practice, practice into policy, and policy into lasting population impact, with our person first philosophy.

Incorporated in Montana, USA, with a founding leadership team led by internationally recognised clinicians, ISO is committed to elevating the standard of obesity care in every corner of the world.


Discover Who We Are

Our Four Pillars

Actionable Research

Advancing evidence-based obesity science through global research collaboration and publications.

Academics and Education

CME-accredited programs, webinars, and eLearning equipping clinicians at every career stage.

Advocacy

Shaping obesity policy frameworks in collaboration with governments and health ministries.

Awareness across the Community

A global network of obesity medicine professionals driving meaningful clinical change together.

The Global Burden

The Barocene Era: Our World Is Facing an Obesity Crisis

Obesity is no longer a lifestyle issue — it is a complex, chronic, relapsing disease. The science demands that we treat it as one.

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People living with obesity globally
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Adults classified as overweight
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Of people with obesity have at least one comorbidity
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Child deaths globally linked to overweight or obesity

Obesity influences and impacts our very existence. Despite being the second leading preventable cause of death globally, obesity remains undertreated, underfunded, and misunderstood. ISO exists to bridge the gap between science and systems — accelerating action at every level of care.

Founding Leadership

Guided by Global Experts

ISO's founding leadership brings together some of the world's most distinguished names in obesity medicine, endocrinology, and metabolic health.

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Dr. Sanjay Kalra

Founding President

Eminent endocrinologist and diabetologist, Bharti Hospital, Karnal. Author of over 2,000 publications in metabolic medicine.

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Dr. Nitin Kapoor

Founding Secretary General

Professor and Head, Dept of Endocrinology, Diabetes & Metabolism, CMC Vellore. Ranked among the world's top 2% most influential researchers (Stanford, 2023 & 2024).

Join the Council

Scientific Advisory Council

ISO is actively recruiting leading clinicians and researchers to its founding Scientific Advisory Council. Apply here →

Join the Global Movement Against Obesity

Become part of a worldwide community dedicated to advancing the science and practice of obesity medicine. Together, we can reshape how the world understands and treats this disease.