What we are investigating
Tā mātou e tūhura ana
Issue | Take
Unhealthy diet is the leading preventable risk for poor health globally. In 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).
Aim | Whāinga
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.
Approach | Huarahi i whāia
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.
Academic Publications | Puka Rangahau
- Gelatinisation and milling whole-wheat increases postprandial blood glucose: randomised crossover study of adults with type 2 diabetes Diabetologia (2021); 64(6), 1385–1388.
- Whole-Grain Processing and Glycemic Control in Type 2 Diabetes: A Randomized Crossover Trial Diabetes Care (2020); dc200263.
- Repositioning of the global epicentre of non-optimal cholesterol Nature (2020); 582:73–77.
- Dietary fibre and whole grains in diabetes management: Systematic review and meta-analyses PLOS Medicine (2020); 17(3):e1003053.
- Carbohydrate quality and human health: a series of systematic reviews and meta-analyses The Lancet (2019); 393(10170):434–445.
- 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.
Other Publications | Ētahi atu puka
- Dietary guidelines on trial: the charges are not evidence based The Lancet (2016); 388(10047):851–853.
Professor Mann has chaired Technical Advisory Groups for:
- 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)
Media | Pāpāho
- 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
- 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