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Research. Education. Action.

We are the leading scientific membership organization advancing the science-based understanding of the causes, consequences, prevention and treatment of obesity in order to improve the lives of those affected.

The Obesity Society is a scientific membership organization. We are dedicated to improving people’s lives by advancing the science-based understanding of the causes, consequences, prevention and treatment of obesity.
Become a MemberAccess Journal

Spotlight your research at the
annual meeting of The Obesity Society!

Submit your abstract now for ObesityWeekSM.

Access Obesity

The official journal of The Obesity Society

Access Obesity

Researching obesity?

Connect with us.

Get ConnectedView useful resources

Educating others about obesity?

Learn with us.

Learn the LatestView the Obesity Journal

Taking action on obesity?

Act with us.

Contact UsTake Action

Research. Education. Action.

We are the leading scientific membership organization advancing the science-based understanding of the causes, consequences, prevention and treatment of obesity in order to improve the lives of those affected.

The Obesity Society is a scientific membership organization. We are dedicated to improving people’s lives by advancing the science-based understanding of the causes, consequences, prevention and treatment of obesity.
Become a MemberAccess Journal

Spotlight your research at the annual meeting of The Obesity Society! 

Submit your abstract now
for ObesityWeekSM.

Access Obesity

Access Obesity

The official journal of
The Obesity Society.

Researching obesity?

Connect with us.

Get ConnectedView useful resources

Educating others about obesity?

Learn with us.

Learn the LatestView the Obesity Journal

Taking action on obesity?

Act with us.

Contact UsTake Action

Advancing the Science of Obesity

You can make a difference.

Getting Connected

Learn more

Getting Connected

The Obesity Society connects with experts, government/non-government organizations and the public to:

  • Develop, influence and promote vital policies and public positions
  • Create and implement guidelines and cross-discipline learning, sharing and action that advances healthy behaviors
  • Reduce obesity-related bias

Supporting Interactions

Learn more

Supporting Interactions

The Obesity Society works with professionals and various audiences on:

  • Valuable conferences and educational opportunities, including early-career professional development and achievement programs
  • Informative professional/academic and popular publications
  • Essential financial development and support

Increasing Impact

Learn more

Increasing Impact

The Obesity Society also helps leaders, investigators and innovators to:

  • Launch and promote needed public health initiatives
  • Translate basic science and clinical trial results into real-world interventions
  • Expand the boundaries of scientific exploration
Contact us for more information

News You Can Use

Researchers Reveal New Strategy for Preventing Holiday Weight Gain

To avoid putting on extra pounds at the holidays…

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Variation of FTO Gene Linked to Weight Gain and Obesity in Children

Researchers have discovered that children who…

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TOS President-elect Co-authors Study on Genetic Test for Obesity

President-elect of The Obesity Society (TOS) Lee M. Kaplan, MD, PhD, FTOS, has co-authored a new study…

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TOS President, Members Named…

President of The Obesity Society (TOS) Steven B. Heymsfield, MD, FTOS, Council member Jamy Ard, MD, FTOS, and three Society members are…

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THE OBESITY JOURNAL

Providing you groundbreaking scientific information and research in each issue.

Read the latest

GRANTS & AWARDS

Recognizing leading-edge explorations and achievements in the obesity field.

View opportunities

INFORMATION FOR PATIENTS

Patient Informational Pages to Healthcare Providers

Resources you can use

NEWSROOM

Supplying the latest news about the entire obesity field.

Get the news
4.04

OBESITY IMPACT FACTOR

OUR JOURNAL’S INFLUENCE HAS GROWN

1,200,000

NUMBER OF PEOPLE WITH OBESITY

$225M

CLINICAL AND ECONOMIC IMPACT OF OBESITY

38

NUMBER OF COMORBID DISEASES ASSOCIATED WITH OBESITY

5,307

ATTENDANCE AT OBESITYWEEKSM 2018

Continuing a Heritage of Leadership

TOS President

Steven B. Heymsfield, MD, FTOS

sheymsfield@obesity.org

Steven B. Heymsfield, M.D. is a widely published author, educator and researcher who has extensively investigated topics ranging from obesity and malnutrition to cachexia, body composition and caloric expenditure.

He currently serves as professor and director of the Body Composition-Metabolism Laboratory at the Pennington Biomedical Research Center of the Louisiana State University System in Baton Rouge.

His previous positions include professor of medicine and deputy director of the New York Obesity Research Center at Columbia University.

Dr. Heymsfield has published more than 600 peer-reviewed papers and has received numerous awards for his studies in the field of human nutrition.

TOS President Elect

Lee M. Kaplan, MD, PhD, FTOS

lkaplan@obesity.org

Dr. Lee M. Kaplan is director of the Obesity, Metabolism and Nutrition Institute at Massachusetts General Hospital (MGH) and founding director of the hospital’s Weight Center. He is also associate professor of medicine at Harvard Medical School (HMS). Dr. Kaplan’s research focuses on the role of the gastrointestinal tract in the regulation of energy balance and metabolic function, including the mechanism of action of bariatric and metabolic surgery. He has authored more than 200 medical and scientific papers.

Dr. Kaplan is director of the subspecialty fellowship program in Obesity Medicine and Nutrition at MGH; director of the Blackburn Course in Obesity Medicine at HMS; and associate director of the Nutrition and Obesity Research Center at Harvard, which is sponsored by the National Institutes of Health. He is a diplomate of the American Board of Obesity Medicine and a diplomate in internal medicine and gastroenterology of the American Board of Internal Medicine.

TOS President Elect

Lee M. Kaplan, MD, PhD, FTOS

lkaplan@obesity.org

Dr. Lee M. Kaplan is director of the Obesity, Metabolism and Nutrition Institute at Massachusetts General Hospital (MGH) and founding director of the hospital’s Weight Center. He is also associate professor of medicine at Harvard Medical School (HMS). Dr. Kaplan’s research focuses on the role of the gastrointestinal tract in the regulation of energy balance and metabolic function, including the mechanism of action of bariatric and metabolic surgery. He has authored more than 200 medical and scientific papers.

Dr. Kaplan is director of the subspecialty fellowship program in Obesity Medicine and Nutrition at MGH; director of the Blackburn Course in Obesity Medicine at HMS; and associate director of the Nutrition and Obesity Research Center at Harvard, which is sponsored by the National Institutes of Health. He is a diplomate of the American Board of Obesity Medicine and a diplomate in internal medicine and gastroenterology of the American Board of Internal Medicine.

TOS Vice President

Catherine Kotz, PhD, FTOS

ckotz@obesity.org

A leading researcher into the neuroscience of obesity and energy balance, Dr. Catherine Kotz is professor and director of graduate studies at the University of Minnesota’s Department of Integrative Biology and Physiology.

She is also acting associate director of research at the U.S. Department of Veterans Affairs’ Geriatric Research Education and Clinical Center in Minneapolis.

Dr. Kotz is a long-time, active member of TOS and has served on numerous Society committees, including Public Affairs, Nominating, Planning, Finance and Publications.

She has also served on TOS Council and as a spokesperson for the organization. She holds two advanced degrees from the University of Minnesota; a PhD in nutrition sciences and a master of science degree in human nutrition.

TOS Immediate Past President

Caroline Apovian, MD, MD, FACP, FTOS, DABOM

capovian@obesity.org

Caroline Apovian, MD, a nationally and internationally recognized authority on nutrition and obesity medicine, is professor of medicine and pediatrics in the Section of Endocrinology, Diabetes, and Nutrition at Boston University School of Medicine.

Dr. Apovian also serves as director of the Center for Nutrition and Weight Management at Boston Medical Center. She has authored more than 10 books and more than 170 peer-reviewed original research and review articles on obesity and nutrition.

Her research includes the study of weight loss/gain and its effects on adipose tissue metabolism and inflammation; obesity and cardiovascular disease; diabetes and cardiovascular disease in the bariatric surgery population; disparities in the treatment of obesity in underserved populations; and investigations into novel pharmacotherapeutic agents for the treatment of obesity.

TOS Immediate Past President

Caroline Apovian, MD, FACP, FTOS, DABOM

capovian@obesity.org

Caroline Apovian, MD, a nationally and internationally recognized authority on nutrition and obesity medicine, is professor of medicine and pediatrics in the Section of Endocrinology, Diabetes, and Nutrition at Boston University School of Medicine.

Dr. Apovian also serves as director of the Center for Nutrition and Weight Management at Boston Medical Center. She has authored more than 10 books and more than 170 peer-reviewed original research and review articles on obesity and nutrition.

Her research includes the study of weight loss/gain and its effects on adipose tissue metabolism and inflammation; obesity and cardiovascular disease; diabetes and cardiovascular disease in the bariatric surgery population; disparities in the treatment of obesity in underserved populations; and investigations into novel pharmacotherapeutic agents for the treatment of obesity.

TOS Secretary/Treasurer

Leah Whigham, PhD, FTOS

lwhigham@obesity.org

Dr. Leah Whigham is the founding executive director of the Paso del Norte Institute for Healthy Living (IHL) and associate professor in the Department of Public Health Sciences at the University of Texas at El Paso.

Her research has increased our understanding of metabolism as it relates to obesity, the influence of nutrients and immune function on body composition, and the impact of the environment on nutrition and physical activity.

At the IHL, Dr. Whigham oversees a mission to increase healthy eating and active living by providing a bridge between science and application that empowers individuals, families, organizations, and communities to build a culture of health.

Dr. Whigham has a bachelor’s degree in biochemistry from Iowa State University and a PhD in nutritional sciences from the University of Wisconsin, Madison.