TĀ MĀTOU E TŪHURA ANA
What we are investigating
Take | Issue
Unhealthy diet is the leading preventable risk for poor health globally. In Aotearoa New Zealand, unhealthy diets, such as those low in wholegrains, vegetables and whole fruits, are now the leading cause of health loss, followed by high body mass index (BMI).
Whāinga | Aim
This programme of research and knowledge exchange aims to improve our understanding of how nutrition and nutrition-related policies can contribute to the prevention and management of non-communicable diseases (NCDs) such as diabetes, cardiovascular disease, obesity and some cancers.
Huarahi I Whāia | Approach
Drawing on considerable expertise within the Healthier Lives National Science Challenge, this programme will use meta-analyses to synthesise evidence and randomised controlled trials to generate new evidence on nutrition-health interactions. The findings will influence national and international nutrition guidelines.
WHAKAWHITI MŌHIOTANGA
Knowledge Exchange
Puka Rangahau | Academic Publications
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- Effects of dietary fat on gut microbiota and faecal metabolites, and their relationship with cardiometabolic risk factors: a 6-month randomised controlled-feeding trial Gut (2019); 68:1417-1429.
- Carbohydrate quality and human health: a series of systematic reviews and meta-analyses The Lancet (2019); 393(10170):434–445.
- Dietary fibre and whole grains in diabetes management: Systematic review and meta-analyses PLOS Medicine (2020); 17(3):e1003053.
- Repositioning of the global epicentre of non-optimal cholesterol Nature (2020); 582:73–77.
- Whole-Grain Processing and Glycemic Control in Type 2 Diabetes: A Randomized Crossover Trial Diabetes Care (2020); dc200263.
- Gelatinisation and milling whole-wheat increases postprandial blood glucose: randomised crossover study of adults with type 2 diabetes Diabetologia (2021); 64(6), 1385–1388.
- Effect of Wholegrain Flour Particle Size in Bread on Glycaemic and Insulinaemic Response Among People with Risk Factors for Type 2 Diabetes: A Randomised Crossover Trial Nutrients (2021); 13(8):2579.
- Dietary fibre in hypertension and cardiovascular disease management: systematic review and meta-analyses BMC Med 20, 139 (2022).
- Update on Nutrition in Diabetes Management. The Medical clinics of North America vol. 106,5 (2022): 865-879.
- Evidence-based European recommendations for the dietary management of diabetes. Diabetologia 66, 965–985 (2023).
- Saturated fat and trans-fat intakes and their replacement with other macronutrients: a systematic review and meta-analysis of prospective observational studies World Health Organization (2023); ISBN 978-92-4-006166-8.
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Ētahi Atu Puka | Other Publications
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- Dietary guidelines on trial: the charges are not evidence based The Lancet (2016); 388(10047):851–853.
- Effects of fruits and vegetables intakes on direct and indirect health outcomes – Background paper for the FAO/WHO International Workshop on fruits and vegetables 2020 FAO and PAHO (2021).
- Government inaction and the preventable diabetes pandemic. Nat Med 29, 791–792 (2023).
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Professor Mann has chaired Technical Advisory Groups for:
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- Clinical Guidelines for Weight Management of New Zealand Adults Ministry of Health (2017)
- Clinical Guidelines for Weight Management of New Zealand New Zealand Children and Young People Ministry of Health (2016)
- Eating and Activity Guidelines for New Zealand Adults Ministry of Health (2015)
- National Nutrition Survey NIHI, University of Auckland (current)
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Pāpāho | Media
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- Fibre has huge benefits, and we’re not getting enough of it ABC.net.au (6m55s, transcript available), March 2019
- Fibre has even bigger benefits for us than we thought, and we’re not getting enough of it ABC.net.au, March 2019
- New diet research reveals dangers of processed food Radio NZ, May 2020 (9m 55s)
- Higher fibre saves lives, but food processing may remove benefits University of Otago, May 2020
- Sugar is evil: science trumped but advice spot on Otago Daily Times, September 2021
- Type 2 diabetes: Health researcher calls for ministeral taskforce Radio NZ, April 2023
- Expert reaction: Most new Type 2 diabetes cases attributable to 'suboptimal diet' NZDoctor, April 2023
- What we eat, and the excess body weight we carry, has now overtaken smoking as the most important preventable cause of disease. The World Health Organisation has just updated its dietary advice on fat and carboydrate intake Waatea News, July 2023
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