Obesity

Obesity means having too much body fat. It is not the same as being overweight, which means weighing too much. A person may be overweight from extra muscle, bone, or water, as well as from having too much fat.

Programs + Services


Clinical Nutrition

The Division of Clinical Nutrition at Tufts Medical Center provides inpatient and outpatient nutritional services.
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Weight and Wellness Center

The Weight and Wellness Center at Tufts Medical Center offers a top weight loss program that includes surgical and medical weight loss options to patients.
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Diabetes Center

The Diabetes Center in downtown Boston provides a full range of services for the diagnosis and management of diabetes and its complications with an emphasis on prevention.
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Medical Weight Loss

Learn about medical, nutritional, and lifestyle changes to assist with long-term weight loss through our Medical Weight Loss Program. Learn more about the program.
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Bariatric surgery

Our minimally invasive surgical options for weight loss surgery include gastric bypass, sleeve gastrectomy, and gastric band surgery. Learn more and book an appointment today.
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Doctors + Care Team

Edward Saltzman, MD

Edward Saltzman, MD

Title(s): Chief, Division of Clinical Nutrition; Director, Adult Nutrition Support Services; Associate Professor, Tufts University School of Medicine; Dean for Education, Friedman School of Nutrition Science and Policy, Tufts University
Department(s): Medicine, Clinical Nutrition
Appt. Phone:
Fax #:

Enteral and parenteral nutrition

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Sajani N. Shah, MD

Sajani N. Shah, MD

Accepting New Patients

Virtual Appointments Available

Title(s): Surgeon; Assistant Professor, Tufts University School of Medicine
Department(s): Surgery, Bariatric and Minimally Invasive Surgery, General Surgery
Appt. Phone: 617-636-6093
Fax #: 617-636-9095

General surgery, laparoscopic surgery, obesity surgery, trauma surgery

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Michael E. Tarnoff, MD

Michael E. Tarnoff, MD

Accepting New Patients

Virtual Appointments Available

Title(s): Interim President and CEO, Tufts Medical Center and Tufts Children's Hospital; Chair and Surgeon-in-Chief; Associate Professor, Tufts University School of Medicine
Department(s): Surgery, Bariatric and Minimally Invasive Surgery, General Surgery
Appt. Phone: 617-636-6093
Fax #: 617-636-9095

General surgery, advanced laparoscopic surgery, obesity surgery

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Anastassios G. Pittas, MD, MS

Anastassios G. Pittas, MD, MS

Accepting New Patients

Virtual Appointments Available

Title(s): Co-Director, Diabetes and Lipid Center; Professor, Tufts University School of Medicine
Department(s): Medicine, Endocrinology, Diabetes and Metabolism
Appt. Phone: 617-636-5689
Fax #: 617-636-4719

• Efficient, patient-centered care delivery that balances in-person with virtual care and digital connectivity
• Prevention of diabetes
• Diabetes management and prevention of diabetes-related complications
• Diagnosis and management of hypoglycemia
• Vitamin D deficiency

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picture of Andrew S. Greenberg, MD

Andrew S. Greenberg, MD

Accepting New Patients

Title(s): Endocrinologist; Dr. Robert and Veronica Atkins Professor in Metabolism and Nutrition, Tufts University School of Medicine
Department(s): Medicine, Clinical Nutrition, Endocrinology, Diabetes and Metabolism
Appt. Phone: 617-556-3144
Fax #: 617-556-3224

Obesity, lipid disorders, diabetes, general endocrinology

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Joel B. Mason, MD

Joel B. Mason, MD

Accepting New Patients

Virtual Appointments Available

Title(s): Gastroenterologist; Professor, Tufts University Schools of Medicine and Friedman School of Nutritional Science and Policy; Senior Scientist and Director, Vitamins and Carcinogenesis Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University
Department(s): Medicine, Clinical Nutrition, Gastroenterology
Appt. Phone: 617-636-5883
Fax #: 617-636-1480

Malabsorption and unintentional weight loss, Inflammatory bowel disease, nutritional aspects of gastrointestinal disease, home nutritional therapy, enteral and parenteral nutrition

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Laura K. Snydman, MD

Laura K. Snydman, MD

LGBTQ Health

Virtual Appointments Available

Title(s): Director of Medical Student Clerkships; Primary Care Physician; Associate Professor, Tufts University School of Medicine
Department(s): Medicine, Internal Medicine and Adult Primary Care
Appt. Phone: 617-636-5400
Fax #: 617-636-9712

Internal medicine, adult primary care, medical education, medical weight management

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Michael L. Dansinger, MD, MS

Michael L. Dansinger, MD, MS

Accepting New Patients

Virtual Appointments Available

Title(s): Internist; Staff Member, Division of Endocrinology, Diabetes and Metabolism; Director, Lifestyle Coaching for Diabetes Weight Loss; Assistant Professor, Tufts University School of Medicine
Department(s): Medicine, Endocrinology, Diabetes and Metabolism
Appt. Phone: 617-636-5689
Fax #: 617-636-8107

Lifestyle management of diabetes, heart disease risk factors, obesity, internal medicine

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Research + Clinical Trials


Lifestyle Intervention in Preparation for Pregnancy (LIPP)

The aim of this study is to improve the metabolic health of overweight and obese women prior to a planned pregnancy. 
More information about research and clinical trials