Prof. N.S. Kalupahana
Professor in Human Nutrition
TP. Number +94-81-2396299, +94-77-2104189  
Fax + 94 81 2389106  
Google Scholar  
Educational /Professional Qualifications
M.B.B.S (Sri Lanka), M.Phil. (Sri Lanka), Ph.D. (USA)


  • Professor in Human Nutrition, Department of Physiology, Faculty of Medicine, University of Peradeniya, 20400, Sri Lanka
  • Adjunct Professor, Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
  • Consultant Nutritionist, Faculty of Medicine, University of Peradeniya - providing visiting clinical nutrition services to the Teaching Hospitals of Peradeniya and Kandy


  • Visiting Associate Professor, Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA

2008 - 2013:

  • Senior Lecturer, Department of Physiology, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka

2011 - 2012:

  • Research Fellow, Department of Immunology, St. Jude Children’s Hospital, Memphis, TN, USA

2003 - 2008:

  • Lecturer, Department of Physiology, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka

2006 - 2011:

  • Graduate Assistant, University of Tennessee, Knoxville, TN, USA

2002 - 2003:

  • Intern Medical Officer, Peradeniya Teaching Hospital, Peradeniya, Sri Lanka
Research Interest
Obesity, lifestyle modification for weight management, Nutrition, Molecular Endocrinology, adipose tissue biology, metabolic syndrome, type-2 diabetes, Renin-Angiotensin System, omega-3 fatty acids, adipokines, T lymphocytes, Immunology, Exercise Physiology
Teaching Experience

Teaching medical undergraduates since 2001

Prizes, Awards and Scholarships


  • Henry Rajaratnam orator (invited), Sri Lanka College of Endocrinologists


  • Bibile Memorial Orator (awarded), Kandy Society of Medicine, Sri Lanka
  • National Research Council Merit Award for Research Publication


  • International Association for the Study of Obesity (IASO), International Journal  of              
  • IASO Travel Fellowship
  • Presidential Award for Scientific Publication, Sri Lanka


  • K.N. Seneviratne Memorial Research Award, Physiological Society of Sri Lanka


  • American Society for Nutrition (ASN) nutrient-gene interactions research interest  section Poster Competition – 1st place    
  • ASN energy and macronutrient metabolism research interest section Student and Postdoc Abstract Award
  • University of Tennessee, College of Education, Health and Sciences Graduate Student Research Award


  • ASN / Nutritional Sciences Council (NSC) Graduate Research Award
  • Invited attendee, Postdoctoral Recruiting at the McGarry Symposium, UT Southwestern Medical Center
  • The University of Tennessee Chancellor’s Honors for professional promise
  • Gamma Sigma Delta Ph.D. graduate student Award of Merit
  • American Society for Nutrition - nutrient gene interactions research interest section poster competition – Honorable Mention
  • Award for Outstanding Poster Presentation (2nd place) at Boshell Diabetes Day, Auburn University
  • Graduate student award (2nd place) at Comparative & Experimental Medicine and Public Health Research Symposium University of Tennessee
  • Ruby McKeel Rives Scholarship


  • American Heart Association Pre-doctoral Fellowship
  • University of Tennessee Graduate Student Senate Travel Award
  • National Institutes of Health Travel Award to participate in the NIH/ODS research practicum


  • Catherine Burton Chi Omega Scholarship


  • Kandy Society of Medicine Gold medal for the best research presentation at the annual academic sessions
International Federation of Clinical Neurophysiology Fellowship
Memberships in Professional bodies and other Associations
  • Member, American Physiological Society
  • Member, American Society for Nutrition
  • Member, World Obesity Federation
  • Member, European Society of Clinical Nutrition and Metabolism (ESPEN)
  • Life Member and Past Secretary, Kandy Society of Medicine (KSM)
  • Vice President, Sri Lanka Nutrition Association
  • Member, Sri Lanka College of Endocrinologists
  • Nutrition Society of Sri Lanka
  • Life Member, Physiological Society of Sri Lanka (PSSL)
Professional Service


  • 2017 to date: Member of Specialty board on Clinical Nutrition, PGIM, University of Colombo
  • 2015 to date: Member of board of study in Basic and Medical Sciences, PGIM, University of Colombo
  • 2015 to date: Member of Specialty board in Physiology, PGIM, University of Colombo
  • 2015 to date: Member of Curriculum development committee for MD clinical nutrition, PGIM, University of Colombo


  • MD (surgery) Part I examination – Examiner for Physiology
  • MD (Clinical Nutrition) Part I examination


  • 2015   Reviewer, National Research Council, Sri Lanka
  • 2012   Reviewer, Medical Research Council (MRC) – UK


  • Nutrition consultant, Plan International Country Strategic Plan for Sri Lanka 2017-2022


  • 2015 to 2016: Sri Lanka Journal of Medicine


  • 2016 to date: Journal of Nutritional Biochemistry (an Elsevier journal: impact factor: 4.7)


  • International Journal of Obesity
  • American Journal of Physiology: Endocrinology and Metabolism
  • Molecular and Cellular Endocrinology
  • Journal of Nutritional Biochemistry
  • Obesity
  • Physiological Genomics
  • Gene
  • Nutrition and Metabolism
  • The Journal of Maternal-Fetal & Neonatal Medicine
  • Journal of the Renin-Angiotensin-Aldosterone System
  • Diabetes Research and Clinical Practice
  • Hormone and Metabolic Research
  • Molecular Nutrition and Food Research
Funding grants awarded
  • 2015–2017: Obesity Research Custer, Texas Tech University. “Maternal    Supplementation of Omega 3 Fatty Acids Alleviate Obesity-Associated Inflammation & Diabetes in the Offspring.” Total award: $ 8000. Role: collaborator
  • 2014–2015: International Research Center, University of Peradeniya. “Identification of mechanisms responsible for insulin resistance in Sri Lankan adults”. Total award: Rs. 500,000. Role: PI
  • 2009–2011:   American Heart Association, Greater Southeast Affiliate, predoctoral fellowship 09PRE2260238“Metabolic effects of caloric restriction in mice over expressing angiotensinogen in adipose tissue”. Total award: $41,000. Role: PI
  • 2004–2006:    Kandy Society of Medicine, Sri Lanka, “Neurophysiological evaluation of  cervical spondylotic myelopathy and radiculopathy”. Total award: Rs. 100,000. Role: PI
Invited presentations


  • “Adipose tissue inflammation as a link between obesity and metabolic syndrome”, St. Jude Children’s Research Hospital, Memphis, TN, USA, 2011
  • “Adipose Tissue as an Endocrine Organ”, symposium lecture, 3rd Biennial Conference of South Asian Association of Physiologists, Colombo, Sri Lanka, 2012
  • “At the Cross Roads of Obesity and Immunology”, FASEB Summer Conference on Nutrient Sensing and Metabolic Signaling, Big Sky, MT, USA, 2014
  • “Obesity in Asia”, Texas Tech University Obesity Cluster Seminar, Texas, USA, 2014
  • “Obesity – an emerging problem in South Asia” Keynote speech at the 2nd international conference on science and technology for society organized by Vishwashanthi multipurpose society, India, May 2015
  • “Enteral Nutrition in the Intensive Care Unit” 2ndSAARC Critical Care Congress hosted by Sri Lankan Society of Critical Care and Emergency Medicine, 31stJuly, 2016


  • “Pathophysiology and Management of Obesity – an update”, Kandy Society of Medicine (KSM) continuing medical education (CME) lecture, Teaching Hospital Kandy, 15.08.2012
  • “Managing bibliographies for postgraduate research”, workshop for MD Medical Education candidates, postgraduate institute of medicine, 20.08.2012
  • “Obesity and its Management”, CME lecture for Medical Doctors, General Hospital, Kurunegala, 06.09.2012
  • “Proper Nutrition for a Healthy Life”, CME lecture for Nurses and Non-communicable disease educators, General Hospital, Kurunegala, 06.09.2012
  • “Nutrition in Chronic Hemodialysis”, guest lecture, Nephrology and Transplant Unit, Teaching Hospital, Kandy, 24.10.2012
  • Lecture discussion on “Nutrition” for staff members, Sri Lanka Society for Microbiology, Kandy Chapter, 01.11.2012
  • “Effective Use of Resources in Postgraduate Research”, workshop for postgraduate research degree candidates, Faculty of Medicine, Peradeniya, 16.11.2012
  • “Nutrition in Cancer Patients”, guest lecture, General Hospital, Anuradhapura, 29.11.2012
  • “Nutrition and Weight Management”, monthly CME lecture organized by the Government Medical Officers Association, Teaching Hospital, Peradeniya, 03.12.2012
  • “Pathophysiology and Management of Obesity”, guest lecture at the monthly meeting of the Endocrine Society of Sri Lanka, 17.12.2012
  • “Obesity and its co-morbid conditions – mechanistic insights”, Annual Scientific Sessions of the Nutrition Society of Sri Lanka, 2.03.2013
  • Symposium lecture on “Obesity and Nutrition”, Annual Academic Sessions of the Kandy Society of Medicine, 9.02.2013
  • “Nutritional management of obesity”, post-congress workshop for nursing officers, Kandy Society of Medicine, 10.02.2013
  • “Issues in Writing-up Research”, Staff development programme for teachers in faculties of Health Sciences organized by the Medical Education Unit, Faculty of Medicine, Peradeniya, 18.02.2013
  • “Non-communicable diseases and their prevention”, workshop for hospital staff, Teaching Hospital Peradeniya, 27.02.2013
  • “Management of Obesity in the Primary Care Setting”, CME lecture organized by the Hill Country Doctors, Kandy, 9.03.2013
  • “Nutrition in Chronic Kidney Disease and Diabetes”, CME lecture at General Hospital, Polonnaruwa, 22.03.2013
  • “Critical Care Nutrition”, CME workshop at Teaching Hospital, Ragama, May, 2014
  • “Medical Nutrition Therapy for the Management of Non-communicable Diseases”, CME lecture at the Postgraduate School of Medical Sciences, University of Peradeniya, May, 2014
  •  “Obesity the global epidemic”, invited symposium lecture, foundation sessions of the Ceylon College of Physicians, Kandy, July,2014
  • “Medical Nutrition Therapy for Doctors” CME seminar at District General Hospital, Teldeniya, March, 2015
  • “Management of Obesity” guest lecture, College of Dentistry annual sessions, Colombo, March, 2015
  • “Nutrition in Chronic Kidney Diseases” CME programme for health care staff, District hospital, Girandurukotte, March, 2015
  • “Prevention of non-communicable diseases” CME workshop for doctors, nurses and midwives, Regional Training Centre, Kadugannawa, May, 2015
  • “Understanding obesity – mechanisms and management” CME lecture, Teaching Hospital, Kandy, May, 2015
  • “ Lifestyle modification for a healthy life” invited guest lecture, Rotary Club of Kandy, July, 2015 
  • “Lifestyle modification” post congress workshop on obesity, Sri Lanka Medical Association, Colombo, July 2015 
  • “Healthy Eating for a Healthy Life” invited lecture, Cinnamon Lakeside, Colombo, July 2015
  • “Medical Nutrition Therapy in Cancer”, CME workshop at the Oncology Surgery unit, Teaching Hospital, Kurunegala, August, 2015
  • “Critical Care Nutrition”, Guest lecture, Annual Scientific Sessions of the Sri Lanka Society for Critical Care and Emergency Medicine, Colombo, October, 2015
  • “Scientific perspective on salt and health”, conference on reducing salt in the diet for better health, Nutrition Society of Sri Lanka, 25th April, 2016
  • “Nutrition in Elderly”, Symposium lecture, Annual Academic Sessions of the Ceylon College of Physicians (CCP), 24th September, 2016
  • “Nutrition in Hospitalized Patients”, plenary lecture, Annual Academic sessions – Kurunegala clinical society, 3rd November, 2016
  • “Medical Nutrition Therapy”, plenary lecture, Annual Academic Sessions of Matale Clinical Society, 3rd November, 2016
“Nutrition Therapy in patients with refeeding syndrome”, symposium lecture, 1st Clinical Nutrition Annual Academic Sessions, Sri Lanka Medical Nutrition Association, 12th November, 2016
Professional workshops attended (International)
  • First Master Class on, 'Impact of Nutrition for Rehabilitation of Older Patients”, Venice, Italy, December, 2015
  • SCOPE school (conducted by World Obesity Federation), London, June, 2015
  • Nestle Nutrition Institute Clinical Nutrition course, Gurgaon, New Delhi, India, October 13-18, 2013
  •  “Introductory Course in Immunology”, American Association of Immunologists, Philadelphia, PA, USA July 9-14, 2011
  •  “An organ systems approach to metabolic syndrome”, Mouse Metabolic Phenotyping Center, Vanderbilt University Medical Center, Nashville, TN, USA July 20-31, 2009
  •  “Dietary Supplements Research Practicum”, National Institute of Health, Office of Dietary Supplements, Bethesda, MD, USA June 1-5, 2009


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