– Clinical Nutrition
– Obesity
– Metabolic syndrome
– Bariatric medicine

– Certificate of Research Fellowship in Clinical Nutrition and Obesity at Boston Medical Center, Boston University, USA
– Certificate of Clinical Fellowship in Clinical Nutrition and Bariatric Medicine, University of Alberta, Canada
– Diplomate, American Board of Physician Nutrition Specialists, USA
– Thai board certification in Clinical Nutrition
– Thai board certification in Internal Medicine

– Doctor of Medicine, Thammasat University
– Internal Medicine specialist, Siriraj Hospital, Mahidol University
– Physician Nutrition Specialist, University of Alberta, Canada