Action on Sugar

About us menu

Staff Profiles

The Action on Sugar team is headed up by a Professor of Cardiovascular Medicine and made up of Nutritionists in Public Health registered with the Association for Nutrition.

Graham MacGregor CBE - Chairman and Professor of Cardiovascular Medicine
Phone: (+44) 020 7882 6220 Mobile: 07946 405617 Email:
Graham MacGregor is a Professor of Cardiovascular Medicine at the Wolfson Institute of Preventive Medicine (Barts and The London) and Honorary Consultant Physician at Queen Mary, University of London. He trained as a nephrologist and became interested in mechanisms underlying the rise in blood pressure in kidney disease and in people with high blood pressure, and his research then focused on the importance of the renin system the influence of salt and potassium intake on health and a variety of studies looking at some of the new mechanisms for drugs that were being developed in the 1980s. He has published more than 500 refereed scientific articles on various aspects of blood pressure, cardiovascular medicine and nutrition and public health. He still retains a clinical role.

He then turned his focus more on public health and set up two action groups on salt, Consensus Action on Salt and Health (CASH) in 1996 and World Action on Salt and Health (WASH) in 2005.These expert groups have been very successful in getting plans for salt intake established in many countries in the world and salt intake is now falling, particularly in the UK as a result of this. He then went on to set up Action on Sugar (2014).

Katharine Jenner RNutr (Public Health) - Campaign Director
Phone: (+44) 020 7446 6018 Email:
Katharine studied Biological Sciences at the University of Exeter, initially following a career path in communications. Having obtained a MSc in Public Health Nutrition at the University of Southampton, Katharine has been working on, and is now responsible for the running of, the UK and international salt reduction campaigns at Action on Salt since 2007 and for sugar reduction since launching Action on Sugar in 2014. Katharine is also a visiting lecturer on nutrition at several UK Universities, Trustee of Sustain and Chair its ‘SugarSmart’ campaign, and Chief Executive of the only charity dedicated to lowering blood pressure in the UK, Blood Pressure UK.

Dr Kawther Hashem RNutr (Public Health) - Campaign Lead 
Phone: (+44) 020 7882 6219 Email:
Kawther studied for a BSc in Nutrition at King's College London. Since graduating, Kawther has worked for Unilever as a Development Nutritionist, before going on to work for Sustain: the alliance for better food and farming, on the successful Children's Food Campaign. Kawther left Sustain, due to lack of funding, to work for Consumers International as nutrition and food safety programme assistant before joining CASH and WASH in 2012. Kawther recently completed a Masters in Food Policy at City University London and is responsible for coordinating the Action on Sugar project.

Holly Gabriel ANutr - Nutrition Campaigner
Since graduating with a First in Public Health Nutrition from Cardiff Metropolitan University, Holly has worked for Mytime Active as a Child Weight Management Nutritionist and Programme Co-ordinator, delivering healthy lifestyle services for young people across London. More recently Holly has worked as a Nutritionist for Waitrose working within the Technical and Corporate Responsibility team before joining Action on Sugar in May 2018.

Return to top