NATURAL IMMUNITY FOUNDATION - Key Persons


Chris Williams

Chris Williams is an independent health researcher and ‘problem solver'. His interest in health began over 20 years ago following an ‘inoperable cancer' diagnosis, a dilemma he successfully managed to deal with. In professional life he was founder and CEO for some 25 years of a UK electronic systems and software company from which he retired in 2008. He is based in Guildford, Surrey

Dr David S Grimes

Job Titles:
  • Retired Consultant
Dr Grimes is a retired consultant physician and consultant gastroenterologist with the E. Lancs Hospitals Trust. He is one of the UK's leading clinical Vitamin D experts and the author of several Vitamin D related books including ‘VITAMIN D DEFICIENCY AND COVID-19 - Its central role in the world pandemic' authored jointly with Prof Anderson. Dr Grimes is based near Blackburn where he practiced medicine for some 30 years to a large patient register that included a substantial Asian ethnic component.