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Alastair Duncan
Alastair Duncan

Dr Alastair Duncan BSc MSc PgDipD PhD RD

Lecturer in Nutritional Sciences

Research interests

  • Nutrition


I am a UK registered dietitian combining clinical, teaching and research roles at King's College London and at Guy’s & St Thomas’ Hospital.

I graduated with a BSc (Hons) in Biological Sciences from the University of Birmingham in the 1980s and worked in research and public service science roles before embarking on a second career as a chef. In the 1990s at King's I completed an MSc in Nutrition prior to being awarded a postgraduate diploma in Dietetics. I have been a registered dietitian working in the NHS for over 20 years. I have been involved with clinical research for much of this time, and in 2013 was awarded a Clinical Doctoral Research Fellowship from the NIHR. I investigated why type 2 diabetes has become so prevalent in people living with HIV, and proved that a diet and physical activity intervention can reduce diabetes risk in this patient group. I completed my PhD in Nutrition and Infectious Diseases at King's in 2016. Continuing in HIV-related research, I am exploring people’s experiences of ageing with HIV, as well as the clinical response to their emerging needs. Finally, I am clinical lead for a large pilot project across South East London testing lifestyle interventions aiming to improve the health of those living with morbid obesity.

Research subject areas

  • Obesity
  • Diabetes
  • HIV / infectious diseases
  • Ageing
  • Behaviour Change
  • Care pathways and quality of care


  • Module lead for Professional Practice for Dietitians
  • Lead for IPE for Dietetics