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Founding of the HMS Department of Nutrition and formation of the Division of Nutrition


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Ronald A. Arky, M.D.Dr. Ronald A. Arky

Ronald A. Arky, M.D. is the Charles S. Davidson Distinguished Professor of Medicine and Master of the Francis Weld Peabody Society at the Harvard Medical School. Among his duties as Master of one of the academic societies, he serves as Steward to a number of courses and programs within the School. As Steward of the Nutrition portion of the Preventive Medicine and Nutrition course, he is responsible for all of the administrative aspects of the course. As Steward of Assessment in the Program for Medical Education, he oversees the second year OSCE and the fourth year Comprehensive Exam, tools utilized to evaluate students' clinical skills and knowledge of medicine, including nutrition. In addition to his academic responsibilities, Dr. Arky serves as Chief of the Diabetes Section at the Brigham and Women's Hospital, and in this clinical role has frequent interactions and cooperative endeavors with the Department of Nutrition at the Brigham and Women's Hospital.

Ronald A. Arky, M.D.
Charles S. Davidson Distinguished Professor of Medicine
Harvard Medical School
260 Longwood Ave., TMEC 255
Boston, MA 02115

Tel (617) 432-2180
Fax(617) 432-2500


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Elizabeth G. Armstrong, Ph.DElizabeth G. Armstrong, Ph.D

Director for Education Programs, Harvard Medical International

Director of the Harvard-Macy Institute, Harvard Medical International

Associate Professor in Pediatrics (Medical Education), Harvard Medical School

Dr. Armstrong has held positions at Harvard Medical School since 1984, including Director of Curriculum 1988 - 1992 and Director of Medical Education 1992 – 2001. She has played a leadership role in designing, implementing and expanding Harvard’s New Pathway curriculum.  In 1994 with funding from the Josiah Macy Jr. Foundation, she created and continues to direct the Harvard-Macy Institute. The Institute offers professional development programs for physician-educators and leaders of reform in medical education worldwide. These programs draw on faculty and teaching paradigms from multiple colleges at Harvard, particularly the Graduate Schools of Business, Education, Medicine, and Public Health.  The global impact of the Harvard-Macy Institute’s programs expanded in 2001 when Dr. Armstrong joined Harvard Medical International as Director for Education Programs.  Since then, she has customized the Harvard Macy programs through collaborative efforts with the Association for the Study of Medical Education in the United Kingdom, the Council of Deans in Australia, the Karolinska Institute in Sweden, and the University of Queensland in Australia.

She has served on and chaired many Harvard Medical School committees and was a member of Cornell University’s Board of Trustees and Cornell’s Medical School Board of Overseers assisting in the major curricular reforms undertaken at their Medical College and School of Veterinary Medicine. Dr. Armstrong is currently a member of the Editorial Board for Academic Medicine and is a Co-Director of the United States Europe Medical Education Exchange program.  She is also a member of the National Advisory Committee for the Robert Wood Johnson Clinical Scholars Program. As a member of China Medical Board’s Institute for International Education, she has been instrumental in developing global minimum essential requirements in medical education. Recognized worldwide as an expert in medical education, she has lectured and written on this subject and received an honorary doctor of medicine degree from the University of Lund Medical Faculty in recognition of her international contributions to medical education.

Dr. Armstrong received her Bachelor of Science degree from Cornell University; Master of Arts degree in Teaching from Harvard University; Ph.D. in Curriculum Design and Instruction from Boston College.

Country Programmatic Experience:  Argentina, Australia, Canada, Croatia, Denmark, Germany, India, Japan, Singapore, South Africa, Sweden, United Arab Emirates, and United Kingdom

Elizabeth G. Armstrong, Ph.D.
Associate Professor in Pediatrics
Harvard Medical School
Director of Education Programs
Harvard Medical International
1135 Tremont St., Suite 900
Boston, MA 02120

Tel (617) 535-6483
Fax(617) 535-6410


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Bruce Ryan Bistrian, M.D., Ph.D.Dr. Bruce Ryan Bistrian

Executive Committee Chairman

Dr. Bistrian is Chief, Clinical Nutrition, Beth Israel Deaconess Medical Center and Professor of Medicine at Harvard Medical School. He is board certified in Internal Medicine with subspecialty qualifications in Critical Care Medicine. He received his medical degree from Cornell University, his M.P.H. degree from Johns Hopkins University and his Ph.D. in Nutritional Biochemistry and Metabolism from the Massachusetts Institute of Technology.

His research interests are in protein calorie malnutrition, its pathophysiology and assessment, cytokine biology, and the nutritional support of critically ill patients. He is the former President of the American Society for Parenteral and Enteral Nutrition and is Director and past president of the Federation of American Society for Experimental Biology. He serves on the editorial boards of Critical Care Medicine, Journal of Parenteral and Enteral Nutrition, Harvard Health Letter, and the Women's Health Watch. He formerly served on the editorial boards of the American Journal of Clinical Nutrition, Nutrition Reviews, Journal of Nutrition, Journal of the American College of Nutrition, and Obesity and Behavior. Dr. Bistrian is the 2004 recipient of the Joseph Goldberger Award in Clinical Nutrition from the American Medical Association and was elected a Fellow of the American Society for Nutritional Sciences in 2005.

He is the author or co-author of more than 400 original publications in the scientific literature.

Bruce R. Bistrian, M.D., Ph.D.
Professor of Medicine
Harvard Medical School
Chief, Clinical Nutrition
Beth Israel Deaconess Medical Center
1 Deaconess Rd.
Boston, MA 02215

Tel (617) 632-8545
Fax(617) 632-0204


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George Blackburn, M.D., Ph.D.Dr. George Blackburn

Division Associate Director

Dr. Blackburn serves as Professor of Surgery and Nutrition, Associate Director of the Division of Nutrition, and is the first incumbent of the S. Daniel Abraham chair in Nutrition Medicine at Harvard Medical School. He is the, Chief of the Nutrition/Metabolism Laboratory, and Director of the Center for the Study of Nutrition Medicine, which are affiliated with the Beth Israel Deaconess Medical Center in Boston, Massachusetts.

He received his medical degree from the University of Kansas in 1965 and completed his internship and residency at Boston City Hospital, Harvard Medical School. In 1973, he obtained his doctorate in nutritional biochemistry from Massachusetts Institute of Technology.

Dr. Blackburn’s laboratory has a priority to investigate the most complex issues dealing with nutrition and health. He has trained over 100 fellows in applied and clinical nutrition and has published widely on various aspects of nutrition, medicine, and metabolism, with over 400 publications to date. He is on the editorial board of and reviewer for several journals including, the Journal of the American Medical Association, New England Journal of Medicine, Annals of Internal Medicine, American Journal of Clinical Nutrition,  and Obesity.. He has been most fortunate to be recognized for his contributions to the field of nutrition by being awarded in 1988 the Grace Goldsmith Award by the American College of Nutrition and was made an honorary member of the American Dietetic Association in 1992. In 1998 he was the recipient of the Joseph Goldberger award in Clinical Nutrition from the American Medical Association.

As an active participant in the field of nutritional medicine, Dr. Blackburn is a Past President of the Obesity Society (formerly NAASO) and the American Board of Nutrition. He also served on the Scientific Advisory Committee of the C. Everett Koop Foundation Shape Up America Campaign. He remains on the Board of Advisors for the American Society of Parenteral and Enteral Nutrition (ASPEN) of which he served as president; he was also President of the American Society for Clinical Nutrition and a member of numerous other medical societies. He was the Chairman of the Massachusetts Medical Society Committee on Nutrition, from 1992-1999. He is a also a fellow of the American College of Surgery. 

Dr. Blackburn’s research spans the full range of scientific endeavors on healthy living and the prevention and treatment of overweight and obesity and their related comorbidities. It includes the role of fatty acids and proteins on energy biochemistry, the nutrient effects of bioactive components on cellular and molecular function, and the metabolic correlates of weight loss following surgical treatment of obesity. Multidisciplinary collaborations and the dissemination of best practices in both surgical and nonsurgical interventions for the treatment of obesity and obesity-related diseases are ongoing priorities, as are several novel collaborations that bring together neurocognitive science and the science of eating behavior.

George L. Blackburn, M.D., Ph.D.
S. Daniel Abraham Chair in Nutrition Medicine
Harvard Medical School
Director, Center for the Study of Nutrition Medicine
Beth Israel Deaconess Medical Center
Finard 880 East Campus
330 Brookline Ave.
Boston, MA 02215

Phone: 617-667-2603
Fax: 617-667-2608


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Helen K. Delichatsios, M.D., S.M.

Assistant Professor, Nutrition Educator

Dr. Delichatsios is a Clinician-Educator at Massachusetts General Hospital. She has an active Primary Care practice and many students and residents whom she supervises. She has developed teaching tools for patients, students, and physicians on nutrition related topics. Her research interests and publications concern effective nutrition and obesity counseling methods in the Primary Care Office.

Dr. Delichatsios is a Nutrition Educator at Harvard Medical School (HMS). She led the transition to the new Clinical Nutrition course that started in 2007 with the Medical Education Reform at HMS. On the Nutrition Curriculum Committee, she strives to increase nutrition and obesity education in all four years of medical school and beyond. She teaches faculty development sessions on Nutrition Education, including physician self-health.

A graduate of Cornell University Medical College in 1994, Dr. Delichatsios completed her residency at Cornell New York Hospital in Manhattan. In 2000, she obtained a Masters of Science degree in Epidemiology from Harvard School of Public Health. She serves on the editorial board of the Harvard Women's Health Watch monthly newsletter. She is also involved in her town's Wellness Committee to improve the public school lunch program.

Helen K. Delichatsios, MD, SM
Assistant Professor, Nutrition Educator
Harvard Medical School
Primary Care Physician
Massachusetts General Hospital
Boston, MA

MGH Beacon Hill Associates
165 Cambridge Street, 5th floor
Boston, MA 02114

Phone: 617-726-4900
Fax: 617-228-6306


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Christopher Duggan, M.D.Dr. George Blackburn

Dr. Duggan is Associate Professor of Pediatrics at Harvard Medical School. His major research interests include: 1) the nutritional management of acute and persistent diarrhea; 2) micronutrient trials in developing countries; and 3) general aspects of energy and protein metabolism in catabolic diseases. His group performed studies evaluating the formulation and effectiveness of oral rehydration solutions for the treatment of acute diarrhea. He performed a number of clinical trials of ORS in several developing countries, one of which resulted in the first significant change in the composition of ORS since its inception 30 years ago. In collaboration with colleagues at HSPH and Muhimbili College of Health Sciences in Dar es Salaam, Tanzania, his group is evaluating the efficacy of micronutrient supplementation in infants and young children born to women with or at risk of HIV infection.

Christopher Duggan
Children's Hospital Clinical Nutrition Service
300 Longwood Avenue
Boston, MA 02115

Phone: 617-355-7612
Fax: 617-730-0496


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Johanna T. Dwyer, D.Sc., R.D.Dr. George Blackburn

Dr. Johanna Dwyer is the Director of the Frances Stern Nutrition Center at New England Medical Center, Professor of Medicine (Nutrition) and Community Health at the Tufts University Medical School, and Professor of Nutrition at Tufts University School of Nutrition. She is also Senior Scientist at the Jean Mayer/USDA Human Nutrition Research Center on Aging at Tufts University. Since mid 2003 until the present Dr. Dwyer is on loan from Tufts University to the Office of Dietary Supplements, National Institutes of Health, where she is responsible for several large projects, including development of an analytically substantiated dietary supplement database and other dietary supplement databases, development of research on the assessment of dietary supplement intake and motivations for their use, and other topics.

Dr. Dwyer was the Assistant Administrator for Human Nutrition, Agricultural Research Service, US Department of Agriculture from 2001-2002. Earlier in her career, Dwyer served in the Executive Office of the President as staff for the White House Conference on Food Nutrition and Health of 1969, and again in 1976 for the President’s Reorganization Project examining the role of nutrition programs in the federal government.  As the Robert Wood Johnson Health Policy Fellow (1980-1981), she served on the personal staffs of Senator Richard Lugar (R-Indiana) and the Hon. Barbara Mikulski (D-Maryland).

Dwyer received her D.Sc. and M.Sc. from the Harvard School of Public Health, an M.S. from the University of Wisconsin, and completed her undergraduate degree with distinction from Cornell University. She is the author or coauthor of more than 170 research articles and 300 review articles published in scientific journals on topics including preventing diet-related disease in children and adolescents; maximizing quality of life and health in the elderly; vegetarian and other alternative lifestyles, and databases for bioactive substances other than nutrients.

She served on the 2000 Dietary Guidelines Committee and was a member of the Food and Nutrition Board of the National Academy of Sciences from 1992-2001 She was elected a member of the Institute of Medicine National Academy of Sciences in 1998, and served as Councilor of the Institute of Medicine from 2001-2003. She is currently secretary of the American Dietetic Association Foundation, and editor of Nutrition Today. She is the past President and Fellow of the American Institute of Nutrition, past Secretary of the American Society for Clinical Nutrition, and past President and Fellow of the Society for Nutrition Education. She received the Conrad V Elvejhem Award for public service in 2005 from the American Society for Nutrition Sciences, the Alumni Award of Merit from the Harvard School of Public Health in 2004, the Medallion Award of the American Dietetic Association in 2003, and the WO Atwater award in 1996.

Johanna T. Dwyer, D.Sc., R.D.
Senior Scientist, Nutritional Epidemiology Program
Box 783 New England Medical Center
750 Washington Street
Boston, MA 02111-1524

Phone: (617) 636-5273
FAX: (617) 636-8325


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David Eisenberg, M.D.Dr. George Blackburn

Ex-Officio Member

David M. Eisenberg is the Director of the Osher Institute at Harvard Medical School and the Division for Research and Education in Complementary and Integrative Medical Therapies and the Director of the BWH Osher Integrative Care Center and Program in Integrative Medicine. He is also the Bernard Osher Associate Professor of Medicine at Harvard Medical School.

Dr. Eisenberg is a graduate of Harvard College and Harvard Medical School. He completed his fellowship training in general internal medicine and primary care and is Board Certified in Internal Medicine.

In 1979, under the auspices of the National Academy of Sciences Dr. Eisenberg served as the first US medical exchange student to the People’s Republic of China. In 1993, he was the medical advisor to the PBS Series, “Healing and the Mind” with Bill Moyers.

More recently, Dr. Eisenberg served as an advisor to the National Institutes of Health, the Food and Drug Administration and the Federation of State Medical Boards with regard to complementary, alternative and integrative medicine research, education and policy. From 2003-2005 Dr. Eisenberg served on a National Academy of Sciences Committee responsible for the Institute of Medicine Report entitled, “The Use of Complementary and Alternative Medicine by the American Public.” Dr. Eisenberg has authored numerous scientific articles involving complementary and integrative medical therapies and currently oversees Harvard Medical School’s research, educational and clinical programs in this area.

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Jeffrey S. Flier, M.D.Dr. Jeffrey S. Flier

Advisory Committee Chairman

Jeffrey S. Flier was named the 21st Dean of the Faculty of Medicine at Harvard University on July 11, 2007. Flier, an endocrinologist and an authority on the molecular causes of obesity and diabetes, is also the Carolyn Shields Walker Professor of Medicine at Harvard Medical School. Previously he had served as Harvard Medical School Faculty Dean for Academic Programs and Chief Academic Officer for Beth Israel Deaconess Medical Center (BIDMC), a Harvard teaching affiliate.

Flier is one of the country’s leading investigators in the areas of obesity and diabetes. His research has produced major insights into the molecular mechanism of insulin action, the molecular mechanisms of insulin resistance in human disease, and the molecular pathophysiology of obesity. He was one of the first to demonstrate that diet-induced obesity in rodents is associated with increased leptin expression, and that short-term starvation is associated with decreased leptin expression and blood levels. His proposal that leptin serves as a switch from the fed to the starved state has fundamentally shaped the discourse of the field.

Flier was born in New York City. He received a BS from City College of New York in 1968, and an MD from Mount Sinai School of Medicine in 1972, graduating with the Elster Award for Highest Academic Standing. Following residency training in internal medicine at Mount Sinai Hospital from 1972 to 1974, Flier moved to the National Institutes of Health as a Clinical Associate. In 1978, he joined the Faculty of Medicine at Harvard Medical School, serving as Chief of the Diabetes Unit at Beth Israel Hospital until 1990, when he was named chief of the hospital's Endocrine Division.
In 2002, Flier was named Chief Academic Officer of BIDMC, a newly created senior position responsible for research and academic programs. He worked with Beth Israel Deaconess academic department chairs to ensure the quality and breadth of academic programs at the Medical Center, through which most Harvard Medical School students pass. He also served as the formal liaison to Harvard Medical School, sitting on the Council of Academic Deans.

Flier has authored over 200 scholarly papers and reviews and has held many editorial positions, including Associate Editor of the Journal of Clinical Investigation, and has served on the Editorial

Boards of Molecular Endocrinology, the Journal of Clinical Endocrinology and Metabolism, and the American Journal of Medicine. He is currently on the Board of Consulting Editors of Science Magazine.

An elected member of the Institute of Medicine and a fellow of the American Academy of Arts and Sciences, Flier’s honors also include the Eli Lilly Award of the American Diabetes Association, the Berson Lecture of the American Physiological Society, and an Honorary Doctorate from the University of Athens. He has been the recipient of a five-year $500,000 Unrestricted Metabolic Research Grant by Bristol-Myers Squibb and the 2003 Edwin B. Astwood Lecture Award from the Endocrine Society. In 2005, he received the Banting Medal from the American Diabetes Association, its highest scientific honor.

Flier, the father of two, lives in Newton, MA with his wife Eleftheria Maratos-Flier, MD, who is also on the faculty of Harvard Medical School and with whom he has collaborated on research in the area of neuroendocrine control of body weight.

Jeffrey Flier, M.D.
Dean of the Faculty of Harvard Medical School
George C. Reisman Professor of Medicine
Harvard Medical School
Academic Faculty Dean for Academic Program Endocrinologist, Dietary and Obesity Program, Beth Israel Deaconess Medical Center
330 Brookline Ave.
Mailstop EFN202
Boston, MA 02215

Tel. #(617) 667-9050
Fax #(617) 667-9054


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Professor Ray A. Goldberg, Ph.D.Professor Ray A. Goldberg, Ph.D.

George Moffett Professor of Agriculture and Business, Emeritus

A native of North Dakota, Dr. Goldberg received his A.B. from Harvard University in 1948, his MBA from the Harvard Graduate School of Business Administration in 1950 and his Ph.D. in Agricultural Economics from the University of Minnesota in 1952. 

Together with John H. Davis he developed the Agribusiness Program at Harvard Business School in 1955. From 1970 to 1997 he was the Moffett Professor of Agriculture and Business and head of the Agribusiness Program. Since July 1, 1997, as emeritus professor, he has chaired the Agribusiness Senior Management Seminars at Harvard Business School and currently teaches a course on Food Policy and Agribusiness with former Secretary of Agriculture, Dan Glickman, at the John F. Kennedy School of Government at Harvard. He is also an Honorary Professor and a member of the Royal Agricultural College at Cirencester, England. He is coordinator of the Joint Business, Scientific, Public Policy, Consumer Policy Technology Committee of the U.S. Food System which meets annually at Harvard University.He received the Distinguished Service Award from Harvard Business School in June 2001. 

Dr. Goldberg is the author, co-author and or editor of 23 books and over 110 articles on positioning firms and institutions in the global value added food system. He also has authored and supervised the development of over 1000 case studies on various private, public, and farm cooperative firms and institutions in the global food system. His most recent publications involve developing strategies for private, public, and cooperative managers as they position their firms, institutions, and government agencies in a rapidly changing global food system. He is also conducting research on the major biological, logistical, packaging and informational revolutions that affect global agribusiness managers as they attempt to cope with the volatile restructuring of major commodity systems. 

Dr. Goldberg has served on over 40 Boards of Directors of major agribusiness firms, farm cooperatives, and technology firms. He has advised financial institutions on their agribusiness investments such as Rabobank, John Hancock and Agriculture Technology Partners. He is one of the founders and first President of the International Agribusiness Management Association and an advisor and consultant to numerous government agencies and private firms. He currently serves as a Director of Smithfield Foods, Inc., Daymon Associates,GoldKist Inc. and a member of the Technology and Research Committee of Beth Israel Hospital. He also serves as a member of the Science Advisory Board of the IFT/FDA Research Contract, and is Chairman of the Advisory Panel for a World Bank Guide to developing Agricultural Markets and Agro-Enterprises. He is Chairman of the Subcommittee on Economic and Social Development in a Global Context of the Board on Agriculture and Natural Resources of the National Research Council. He is Chairman of the Task Force to Utilize Tobacco Funds for Economic Development for the State of Kentucky.

Dr. Goldberg was a member of the Presidential Mission to Poland in December of 1989. He was a member and speaker at the U.S. Department of Agriculture 2020 Vision: Beyond Reorganization Senior Policy Retreat in May of 1994. He is Chairman of the Russian Food Management Program Research Project and Seminar sponsored by the international Agribusiness Management Association. He most recent articles are entitled the 'Business of Agriceuticals' published in Nature Biotechnology, Volume 17 Supplement 1999; 'Transforming Life, Transforming Business: The Life-Science Revolution,' co-authored with Juan Enriquez and published in the Harvard Business Review, March-April 2000; and 'Food Wars: A Potential Peace' published in the Journal of Law, Medicine, and Ethics Supplement to Volume 28 No. 4 Selected Proceedings of 'Genes and Society: Impact of New Technologies on Law, Medicine, and Policy, May 10-12, 2000' pages 39-45 Winter 2000:and Biotechnology and the Agricultural Industry of the Future published in the Conference Proceedings of the Eight Annual Conference of the Emirates Center for Strategic Studies and Research(ECSSR) Abu Dhabi, U.A.E. August 2003

He was made a Fellow of the International Agribusiness Management Association in 2004. In July of 2005 he will become a Fellow of the American Agricultural Economic Association. He is married to Thelma Englander and has three children and six grandchildren.

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Richard J. Grand, M.D.Dr. Richard Grand

Dr. Grand is a Professor of Pediatrics at Harvard Medical School, Director of the Inflammatory Bowel Disease Center and Principal Investigator of the CRC at Children’s Hospital. This is an important component of the HCNRC to allow clinical nutrition studies to be done at Children’s as part of an NIH mandate to study children.

Richard J. Grand, M.D.
Professor of Pediatrics
Harvard Medical School
Program Director, General Clinical
Research Center
Children's Hospital
300 Longwood Ave.
Boston, MA 02115


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Steven Grinspoon, M.D.Dr. Steven Grinspoon

Dr. Steven Grinspoon is a Professor of Medicine, Director of the MGH Program in Nutritional Metabolism and a recognized authority on metabolic and neuroendocrine dysregulation of visceral adiposity. More broadly, Dr. Grinspoon is recognized for his contributions to the understanding of abnormal fat distribution, and the resultant metabolic and inflammatory changes in lipodystrophy.

Dr. Grinspoon's work investigates the nutritional regulation of pituitary function and encompasses a broad focus including the mechanism by which fat regulates neuroendocrine function, the mechanisms of insulin resistance in fat redistribution and acquired lipodystrophy and the role of altered nutrient trafficking in visceral obesity.

Dr. Grinspoon has served to Chair the Department of Health and Human Services Working Group on HIV and Wasting as well as on the World Health Organization, Technical Advisory Group on Nutrition and HIV/AIDS. He Co-Chaired the Research Affairs Committee for the Endocrine Society and Directed the Endocrine Society’s Clinical Investigators Workshop. He chaired the AHA State of the Science Conference on Cardiovascular Disease in HIV. His current research has linked increased arterial inflammation to CVD risk and monocyte activation in HIV. With respect to studies of adiposity, he has investigated the effects of blocking TNF in generalized obesity and use of hypothalamic peptides, including GHRH, to selectively reduce visceral fat. His efforts led to the FDA approval in November 2010 of GHRH as the first therapy to reduce visceral fat in HIV lipodystrophy.

Dr. Grinspoon has been highly successful as a clinical investigator and mentor to numerous researchers and is the Director of the MGH Program in Nutritional Metabolism. He is the PI on a Harvard wide NIH Training Grant in Nutrition and Metabolism.

Steven Grinspoon, MD
Professor of Medicine
Harvard Medical School
Director, MGH Program in Nutritional Metabolism and
Clinical Director, Neuroendocrine Clinical Center
Massachusetts General Hospital
55 Fruit Street, LON 207
Boston, MA 02114

Phone: 617-724-9109
Fax: 617-724-8998


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David Herzog, M.D.Dr. Richard Grand

Dr. Herzog is a Professor of Pediatrics at Harvard Medical School and Director of the Harris Center for Education and Advocacy in Eating Disorders at the Massachusetts General Hospital. Dr. Herzog is Professor of Psychiatry (Pediatrics) at Harvard Medical School and is Board Certified in General Psychiatry, Child and Adolescent Psychiatry, and Pediatrics. Dr. Herzog’s research focus is on eating disorders, including medical complications, course and outcome, co-morbidity and treatment. He is Principal Investigator for the longest running naturalistic longitudinal study for eating disorders, now entering its 18th year.

Dr. Herzog has received numerous honors and awards for his work, including the Outstanding Psychiatrist Award for Research from the Massachusetts Psychiatric Society, the Simon Wile Award from the American Academy of Child and Adolescent Psychiatry for outstanding leadership and contributions in the field of child and adolescent psychiatry, the American Medical Association Joseph B. Goldberger Award in Clinical Nutrition and the American Psychiatric Association Blanche F. Ittleson Award. He was the recipient of the Meehan/Hartley Leadership Award for Public Service and/or Advocacy presented by the Academy of Eating Disorders, in recognition of his efforts to champion eating disorders as a national health policy issue and the Award for Visionary Leadership presented by the Eating Disorders Coalition for Research, Policy, & Action. Dr. Herzog is credited with over 200 publications.

He heads the Eating Disorders Division at HMS. He is internationally recognized as an authority on eating disorders and works closely with the Division of Nutrition on establishing guidelines on nutritional management.

David Herzog, M.D.
Director, Harris Center for Education and Advocacy in Eating Disorders
Massachusetts General Hospital
2 Longfellow Place
Suite 200
Boston, MA. 02114

Phone: 617-726-8470


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Thomas Jaksic M.D., Ph.D.

Dr. Jacsic is Associate Professor at Children's Hospital, Boston. He is the new Principle Investigator of the HCNRC Mass Spectrometry Core Facility.

Dr. Jaksic's research focuses on two related areas--nutrition and gastrointestinal surgery. In 2002, with colleague Heung Bae Kim, he pioneered serial transverse enteroplasty (STEP) for short bowel syndrome. The procedure, which involves making and suturing several v-shaped cuts on alternate sides of the bowel to extend it by a few feet, has been performed successfully at several U.S. medical centers. It is now being evaluated in clinical trials. Dr. Jaksic received his MD degree frm Queen's University in Canada. He completed an internship and residency at the University of Toronto and fellowships at Massachusetts Institute of Technology and New England Deaconess Hospital.

Thomas Jaksic, MD, PhD
General Surgery
300 Longwood Avenue, Fegan-3
Boston MA 02115

Phone: 617-355-9600
Fax: 617-730-0477


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Clifford Lo, M.D., Ph.D.Dr. Clifford Lo

Division Coordinator

Coordinator of the Division of Nutrition
Assistant Professor of Pediatrics at Harvard Medical School
Assistant Professor at the Harvard School of Public Health

Clifford Lo, MD, PhD is the Director of the Harvard Human Nutrition Program, and Medical Education Coordinator of the Harvard Medical School Division of Nutrition.

He is the Director of the Home Parenteral Nutrition Program at Children's Hospital, Boston, and Assistant Professor of Pediatrics and Nutrition at Harvard Medical School and Harvard School of Public Health. He also a member of the Nutrition Clinical Service in the Division of Pediatric Gastroenterology and Nutrition at Children’s Hospital.

His training was at UCLA, Stanford, MIT, Massachusetts General Hospital, and he was a Fulbright Scholar and Royal  Society Fellow at Cambridge University, England. He has been Director of the Nutrition Support Service at Children's Hospital, Boston, one of the largest Pediatric Clinical Nutrition services in the world. His interests include vitamin D and calcium metabolism, and parenteral nutrition. He teaches several courses in nutrition at Harvard Medical School, Harvard School of Public Health, and has recently been a Visiting Professor in Britain, China, Laos, Poland, Nepal and Japan.

Dr. Lo’s research activities include clinical studies on:

1) Total Parenteral Nutrition in Pediatrics: outcome, utilization, cost-effectiveness, quality improvement, complications, central venous line sepsis, cholestasis and bone disease associated with parenteral nutrition.

2) Vitamin D and Calcium Metabolism: Vitamin D absorption, skin conversion, calcium nutrition and bone mineralization in children and adolescents, parathyroid hormone secretion, bone densitometry.

3) Micronutrients in Clinical Medicine, including Selenium, Zinc, Magnesium, Phosphorus, Vitamin K, and Vitamin A, especially in pediatric patients with congenital heart disease, short bowel syndrome, intestinal dysmotility syndromes, and malignancies requiring bone marrow transplantation.

4) Nutritional Assessment, especially Laboratory methods.

Dr. Lo teaches the following courses:

  • 1) HSPH Nutrition 201b: Principles of Nutrition, Fall TTh 1:30-3:30, Kresge 201
  • 2) HSPH Nutrition 202cd Science of Nutrition: Vitamins and Minerals, Spring TTh 1:30-3:30 Kresge 203
  • 3) HSPH Nutrition 209ab Seminar in Food Science and Technology, alternate years, Fall F 3:30-5:30
  • 4) HMS Preventive Medicine and Nutrition, 2nd year
  • 5) HST Biochemistry, 1st year
  • 6) HMS Patient Doctor II Pediatrics
  • 7) HST Introduction to Clinical Medicine/ Pediatrics
  • 8) HMS Women's and Children Core Clinical Clerkship
  • 9) HMS Advanced Clinical Clerkship, Pediatric Nutrition, Eliot small dining room

Clifford Lo, M.D., Ph.D.
Assistant Professor of Pediatrics
Harvard Medical School
Clinical Nutrition Service
Division of Gastroenterology & Nutrition
Children's Hospital
300 Longwood Ave.
Boston, MA 02115

Phone: 617-355-7612


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Irwin Rosenberg, M.D.

University Professor and the Jean Mayer Professor of Nutrition at the Friedman School, Irwin Rosenberg is the 2006 recipient of the Conrad Elvehjem Award for Public Service in Nutrition, which recognizes distinguished service to the public through nutrition science. He received the award from the American Society of Clinical Nutrition in April at the 2006 Experimental Biology Meeting in San Francisco. Throughout his career, Rosenberg has participated in many national and international nutrition policy efforts and has held positions on committees for the Food and Drug Administration and the Institute of Medicine. Since joining Tufts, Rosenberg has served as dean of the Friedman School for nine years and director of the HNRCA for 15 years. Currently, Rosenberg directs the Nutrition and Neurocognition Laboratory at the HNRCA.

Dr. Rosenberg’s research interests include nutrition and aging; folate nutriture; relationship between homocysteine, B vitamin nutriture, vascular disease and cognitive decline.

Irwin H. Rosenberg, M.D.
Senior Scientist and Director, Nutrition and Neurocognition Laboratory
Jean Mayer USDA HNRCA at Tufts University
711 Washington Street
Boston, MA 02111-1524

Phone: (617) 636-3701
FAX: (617) 636-3794


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W. Allan Walker, M.D.Dr. W. Allan Walker

Division Director

Dr. Walker is the Director of the Division of Nutrition (DON) at Harvard Medical School (HMS). He coordinates all activities of the DON and works closely with the Executive and Advisory Committees to implement new activities. Within the DON, he chairs the Subcommittee of Medical Student Education Nutrition and coordinates postgraduate educational activities in conjunction with the Department of Nutrition at the Harvard School of Public Health (HSPH) and the Clinical Nutrition Research Center at Harvard (HCNRC).

Dr. Walker, has a longstanding interest and commitment to nutrition research, particularly on the role of nutritional factors in maintaining the integrity of the intestinal mucosal barrier to host defense during the perinatal period. He was the first recipient of the Conrad Taff Professorship in Nutrition at Harvard Medical School in 1990. The research efforts of his laboratory have contributed substantially to a better understanding of the role of breast milk and its inherent growth factors on the development of the gastrointestinal tract and the role of short and long term malnutrition on the integrity of the mucosal barrier to host defense against bacterial colonization and against the uptake of macromolecules (antigens and toxins) which may result in neonatal and childhood intestinal disease states (necrotizing enterocolitis and gastrointestinal allergy).

Dr. Walker served for six years on the Committee of Nutrition of the American Academy of Pediatrics (1977-1983) and received the Nutrition Research Award (Borden Award) of the American Academy of Pediatrics in 1984 and the Hugh Butt Award for Excellence in Clinical Nutrition Research from the American Gastroenterologic Association in 1998. He has also served on Nutrition study sections at the NICHD and NIDDK institutes and the Advisory Council of NIDDK at NIH and recently served as a member of the task force to establish a five-year nutrition research plan at NICHD.

Dr. Walker is the author of 12 textbooks and over 500 research and review articles.

W. Allan Walker, M.D.
Conrad Taff Professor Nutrition
Director, Division of Nutrition
Harvard Medical School
Landmark Building, Room 2L00
Boston, MA 02215

Tel. (617) 998-8803
Fax. (617) 998-8804


P.I., Harvard Clinical Nutrition Research Center (HCNRC)
Director, Mucosal Immunology Laboratory
Massachusetts General Hospital-East
114 16th St.
Charlestown, MA 02129

Tel. (617) 726-4166
Fax. (617) 724-1731


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Walter C. Willett, M.D.Dr. W. Allan Walker

Dr. Walter Willett is Professor of Epidemiology and Nutrition and Chairman of the Department of Nutrition at Harvard School of Public Health and Professor of Medicine at Harvard Medical School. He grew up in Madison, Wisconsin, attended Michigan State University, and graduated from the University of Michigan Medical School before obtaining a Doctorate in Public Health from Harvard School of Public Health. Dr. Willett is a co-investigator of the Nurses' Health Study I, a cohort of over 121,000 female registered nurses 30-55 years of age who completed a mailed questionnaire that included items about known or suspected risk for cancer and cardiovascular disease. He is Principal Investigator of the Nurses' Health Study II, a prospective cohort investigation established in 1989 with over 116,000 female registered nurses. This study is designed to examine the association between lifestyle and nutritional factors and the occurrence of breast cancer and other major illnesses.

In addition to his work with the Nurses' Health Studies I and II, Dr. Willett initiated in 1986 a parallel prospective study of diet in relation to cancer and cardiovascular disease among 52,000 men, the Health Professionals Follow-up Study. He has published over 700 articles, primarily on lifestyle risk factors for heart disease and cancer, and has written the textbook, Nutritional Epidemiology, 2nd edition, published by Oxford University Press. His recent book for the general public, Eat, Drink and Be Healthy: The Harvard Medical School Guide to Healthy Eating has appeared on most major best seller lists.

Walter Willett, M.D.
Frederick Stare Professor of Nutrition
Harvard Medical School
Chairman, Department of Nutrition
Harvard School of Public Health
677 Huntington Ave.
Boston, MA 02115

Tel (617) 432-4680
Fax(617) 432-0464


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Updated 12/4/2016