Jim Mann (scientist)

Sir Joel Ivor Mann KNZM (born 30 September 1944), generally known as Jim Mann, is a New Zealand nutritionist and endocrinologist. He is professor in human nutrition and medicine at the University of Otago and consultant physician (endocrinology) at Dunedin Hospital. He has researched the role of lipids and carbohydrates in coronary heart disease, diabetes, and obesity, as well as the relationship between obesity and cancer.[1] He was knighted in the 2022 New Year Honours.

Sir Jim Mann

Mann in 2022
Born
Joel Ivor Mann

(1944-09-30) 30 September 1944
George, Western Cape, South Africa
Alma materUniversity of Cape Town
Spouse
Helene Vicary Jones
(m. 1978)
Children2
Scientific career
FieldsEndocrinology, human nutrition
ThesisSome factors influencing serum triglyceride in man (1971)
WebsiteUniversity of Otago profile

Early life, family, and education

Mann was born in George, Western Cape, South Africa, on 30 September 1944, the son of Pearl Mann (née Joseph) and Harry Bernard Mann.[2] He studied at the University of Cape Town, graduating MB ChB in 1967, and PhD in 1971.[2] The title of his doctoral thesis was Some factors influencing serum triglyceride in man.[3] He then completed Master of Arts and Doctor of Medicine degrees at the University of Oxford in 1975.[2]

On 28 January 1978, Mann married Helene Vicary Jones, and the couple went on to have two children.[2]

Career

Between 1975 and 1987, Mann was a university lecturer in social medicine at the University of Oxford, and concurrently a consultant physician at the John Radcliffe Hospital.[2] He became a fellow of Wolfson College, Oxford in 1977.[2]

In 1988, Mann moved to New Zealand where he was appointed professor of human nutrition and medicine at the University of Otago,[2][4][5][6] and consultant physician (endocrinology) at Dunedin Hospital.[7] He is also a director of the Edgar Diabetes and Obesity Research (EDOR,[8] a World Health Organization Collaborating Centre for Human Nutrition at the University of Otago) and a principal investigator for the Riddet Institute at Massey University.[9] In 2015 he was appointed director of Healther Lives – He Oranga Hauora, a National Science Challenge based at the University of Otago.[10]

Research

Mann and his team at the University of Otago carried out a major review for the World Health Organization (WHO) of the scientific evidence on sugar and weight gain, published in 2013 in the British Medical Journal.[11] The review, which showed that sugar "unquestionably contributes to obesity",[11] "informed WHO guidance on curbing sugar in the diet, leading to sugar taxes around the world."[12]

Mann and his coworkers at Otago carried out a "landmark" review, commissioned by the WHO and published in The Lancet in 2019. The analysis of population epidemiological studies and feeding studies said that dietary fibre in "good" carbohydrates will cut people's chances of early death from a wide range of diseases including cardiovascular disease (heart disease), coronary heart disease, stroke, type 2 diabetes, colorectal cancer, breast cancer, reduction in body weight and cholesterol—increasing satiety and helping weight control and favourably influencing lipid and glucose levels.[12] The report made examples of "good" carbohydrates being whole grain bread and oats, wholegrain cereals, pasta and bread, nuts and pulses[12] and declared sugar a "bad" carbohydrate.[12]

Honours and awards

In the 2022 New Year Honours, Mann was promoted to knight companion.[19]

Selected publications

  • Essentials of Human Nutrition. New York: Oxford University Press. Co-edited with Stewart Truswell. 1998; 2002, ISBN 0-19-850861-1; 2007, ISBN 978-0199290970; 2011, ISBN 978-0199566341; 2017 ISBN 9780198752981.

References

  1. "Professor Jim Mann". www.otago.ac.nz. Retrieved 14 January 2019.
  2. Who's Who in New Zealand (2nd ed.). Sydney: Asia Pacific InfoServ. 2019. p. 207. ISBN 978-1-925598-92-6.
  3. Mann, Joel Ivor (1971). Some factors influencing serum triglyceride in man (PhD). University of Cape Town. Retrieved 1 September 2019.
  4. Fleming, Amy (12 July 2017). "High-fat oil and low-paid farmers: the cost of our coconut craze". The Guardian. ISSN 0261-3077. Retrieved 11 January 2019 via www.theguardian.com.
  5. "Schools need national health food policy, researchers say". NZ Herald. 3 September 2018. ISSN 1170-0777. Retrieved 11 January 2019 via www.nzherald.co.nz.
  6. "Green leafy veg 'may cut diabetes risk'". www.bbc.co.uk. Retrieved 11 January 2019.
  7. "Department of Medicine staff profiles". www.otago.ac.nz. Retrieved 14 January 2019.
  8. "Edgar Diabetes and Obesity Research About us". www.otago.ac.nz. Retrieved 14 January 2019.
  9. "Professor Jim Mann". www.riddet.ac.nz. Retrieved 14 January 2019.
  10. Elder, Vaughan (5 December 2015). "Magnitude of health challenge highlighted". Otago Daily Times Online News. Retrieved 3 September 2023.
  11. Boseley, Sarah (7 September 2013). "Sugar intake must come down, says WHO – but UK likely to resist". The Guardian. ISSN 0261-3077. Retrieved 11 January 2019 via www.theguardian.com.
  12. Boseley, Sarah (10 January 2019). "Blow to low carb diet as landmark study finds high fibre cuts heart disease risk". The Guardian. ISSN 0261-3077. Retrieved 11 January 2019 via www.theguardian.com.
  13. "Professor Jim Mann". World Health Organization. Archived from the original on 22 April 2014. Retrieved 14 January 2019.
  14. "Queen honours artists, mathematicians, sports people and literary lights". The New Zealand Herald. 3 June 2002. ISSN 1170-0777. Retrieved 14 January 2019.
  15. "NWU, Potchefstroom Campus, News: Record books rewritten with number of doctorates awarded". North-West University. Retrieved 14 January 2019.
  16. "Royal Society Te Apārangi - Recipients". royalsociety.org.nz. Retrieved 14 January 2019.
  17. "School of Medicine inaugural Research Awards". Scoop. 29 April 2005. Retrieved 14 January 2019.
  18. Gibb, John (4 July 2012). "Global award for Otago researcher". Otago Daily Times Online News. Retrieved 11 January 2019.
  19. "Six new dames, knights". Otago Daily Times. 31 December 2021. Retrieved 30 December 2021.
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