World Action on Salt & Health

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Staff profiles


Graham MacGregor CBE - Chairman and Professor of Cardiovascular Medicine

Phone: +44 (0)20 7882 6217 - Mobile: +44 (0)7740553298 - email:

Graham MacGregor is Professor of Cardiovascular Medicine at the Wolfson Institute of Preventive Medicine (Barts & The London) and Honorary Consultant Physician at St George's Hospital, London. Professor MacGregor set up Action on Salt in 1996 and WASH in 2005 and is chairman for both. He is also chairman of the Blood Pressure Association, sits on the board for the World Hypertension League and recently served as President of The British Hypertension Society.

Professor MacGregor's research work has focused on the mechanisms underlying the rise in blood pressure in hypertension, the importance of the renin-angiotensin system, and the influence of salt and potassium intake on health. Professor MacGregor has authored many scientific articles on various aspects of blood pressure and cardiovascular medicine.


Katharine Jenner (RNutr) - Campaign Director 

Phone: 0207 882 6018 Email:

Katharine studied for a BSc in 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 salt reduction campaigns at Action on Salt and WASH since 2007. 

Katharine is also a visiting lecturer on nutrition at several UK Universities and delivers healthy eating sessions for people living with HIV. Katharine is also Chair of the Campaign for Better Hospital Food, and Chief Executive of our sister charity, Blood Pressure UK.


Mhairi Brown (ANutr) - Nutritionist
: 0207 882 5941 Email:

Mhairi studied for a BSc in Chemistry with Environmental and Sustainable Chemistry at the University of Edinburgh before completing a Masters in International Public Health Nutrition at the University of Westminster. Since graduating, Mhairi has worked in the Registration team at the Association for Nutrition.

Mhairi now coordinates World Action on Salt and Health activities, as well as contributing to salt reduction work within the Action on Salt team. 

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