Dietetics and Clinical Nutrition Commons^™

Body Mass Index, Prebiotic Supplementation During Pregnancy And Gestational Diabetes Mellitus Risk: An Effect Modification Analysis From A Randomised Controlled Trial, Rachelle A. Pretorius, Thomas R. Sullivan, Summer V.M. Walker, Johan Garssen, Jeffrey A. Keelan, Desiree Silva, Susan L. Prescott, Debra J. Palmer

Research outputs 2022 to 2026

Background: Prebiotic dietary supplementation has been shown to improve glucose homeostasis in type 2 diabetes patients. The aim of this analysis was to determine whether pre-pregnancy body mass index (BMI) modifies the effect of prebiotic supplementation from mid-pregnancy on reducing the risk of gestational diabetes mellitus (GDM). Methods: In a double-blinded, randomised controlled trial, pregnant women < 21 gestational weeks were randomly assigned (1:1) to consume daily prebiotics (14.2 g galacto-oligosaccharides and fructo-oligosaccharides) or placebo (8.7 g maltodextrin) powder. An effect modification analysis was performed to assess the heterogeneity of the effect of prebiotic supplementation in relation to pre-pregnancy BMI on GDM diagnosis. Results: Between June 2016 and November 2021, 329 women were assigned to the prebiotic group (50.4%), and 323 (49.5%) were assigned to the placebo group. Overall, 288 of 652 women (44.2%) were classified as overweight/obese prior to pregnancy (BMI ≥ 25 kg/m²). The distribution was balanced, with 146/329 (44.4%) randomised to the prebiotics group and 142/323 (44.0%) in the placebo group. Pre-pregnancy BMI modified the effect of prebiotic supplementation, with the intervention reducing GDM rates in women with a BMI ≥ 25 kg/m^{2 …}

Dietary Fibre Blend Improves Gut Health In Patients With Irritable Bowel Syndrome Following A Low Fodmap Diet: A Randomised, Double-Blind Control Trial, Ran Yan, Amanda Devine, Johnny Lo, Evania Marlow, Ian C. Dunican, Kanita Kunaratnam, Lesley Andrew, Claus T. Christophersen

Research outputs 2022 to 2026

Purpose: A diet low in FODMAP may negatively affect the gut microbiota of some Irritable Bowel Syndrome (IBS) patients, despite alleviating symptoms. This pilot study comprehensively explores the effects of a 3-week ur gut® supplementation on gut microbiota, gut health, dietary intake, sleep, mental health and quality of life (QOL) in individuals with IBS following a low FODMAP diet.

Methods: Adult participants (n = 26, 3 males) completed a randomised, double-blind controlled study. Participants were provided with either ur gut® (n = 13) or placebo (n = 13) for 3 weeks after a 1-week baseline. At baseline and end of …

Associations Between Dietary Vitamin K1 And K2 Intake And Incident Dementia: Findings From The Danish Diet, Cancer, And Health Cohort, Negar Ghasemifard, Marc Sim, Pratik Pokharel, Chengfeng Li, Allan Linneberg, Anne Ahrendt Bjerregaard, Anja Olsen, Christina C. Dahm, Simone Radavelli-Bagatini, Simon M. Laws, Joshua R. Lewis, Jonathan M. Hodgson, Nicola P. Bondonno

Research outputs 2022 to 2026

Purpose:Vitamin K is hypothesised to support vascular integrity and neuronal function through vitamin K-dependent proteins, yet epidemiological evidence for its role in dementia, particularly distinguishing vitamin K1 and K2, is limited. This aetiological study examined associations between dietary vitamin K1 and K2 with incident dementia in a large Danish cohort.

54,968="54,968" dementia-free="dementia-free" participants="participants" (47.5%="(47.5%" male,="male," aged="aged" 50–65="50–65" years)="years)" from="from" the="the" danish="Danish" diet,="Diet," cancer,="Cancer," and="and" health="Health" cohort="cohort" (1993–1997)="(1993–1997)" with="with" dietary="dietary" vitamin="vitamin" k1="K1" (µg/day),="(µg/day)," and="and" k2="K2" (µg="(µg" phylloquinone="phylloquinone" equivalent/day)="equivalent/day)" intakes="intakes" estimated="estimated" from="from" a="a" 192-item="192-item" food="food" frequency="frequency" questionnaire.="questionnaire." incident="Incident" and="and" early-onset="early-onset" dementia="dementia" were="were" identified="identified" through="through" national="national" registries.="registries." cox="Cox" proportional="proportional" hazard="hazard" models="models" with="with" restricted="restricted" …

Exploring The Associations Between Dietary Nitrate And Nitrite Intake And Markers Of Self-Reported Periodontal Disease In The Uk Biobank Cohort, Shatha S. Alhulaefi, Anthony Watson, Kirsten Brandt, Sheena E. Ramsay, Nicholas S. Jakubovics, Alex Griffiths, Jamie Matu, Mario Siervo, Benjamin H, Parmenter, Liezhou Zhong, Jonathan Hodgson, Catherine P. Bondonno, Nicola P. Bondonno, Oliver M. Shannon

Research outputs 2022 to 2026

Purpose: Periodontal disease, an inflammatory condition affecting the tissue surrounding the teeth, has been associated with various systemic health issues. Dietary nitrate and nitrite are found in a range of plant and animal foods and, depending upon source, have been linked with both positive and negative health effects, including improved oral health with plant sources. This study aimed to investigate the associations between source-dependent (plant- and animal-sourced) nitrate and nitrite intake and odds of periodontal disease. Methods: We explored cross-sectional and longitudinal associations between tertiles of source-dependent nitrate and nitrite intake and the odds of periodontal disease using multivariable logistic …

Plant-Based Diets, Ultra-Processed Foods, And Risks Of Mortality And Major Chronic Diseases: A Prospective Cohort Study, Alysha S. Thompson, Amy Jennings, Nicola P. Bondonno, Aedín Cassidy, Tilman Kühn

Research outputs 2022 to 2026

Background: Higher-quality plant-based diets (PBDs) are associated with lower risks of mortality and chronic disease, but whether ultra-processed food (UPF) content affects these associations remains unclear. We examined whether UPF content influences the relationship between plant-based dietary patterns and risks of mortality and major chronic diseases, accounting for nutrient quality. Methods: This prospective cohort study included 124,836 UK Biobank participants aged 40–70 years (recruited 2006–2010). Dietary intake was assessed using the Oxford WebQ 24-h recall. Four modified Plant-Based Diet Indices (PDIs) were derived to distinguish healthy (hPDI) and unhealthy (uPDI) patterns with high- and low-UPF content, using the Nova classification …

Dietary Patterns And Cognitive Decline In Older Adults: Findings From The Western Australia Memory Study, Carolina Blagojevic Castro, Samantha L. Gardener, Farzana Jahan, Juliana Chen, Belinda M. Brown, Ruey L. Loo, Kevin Taddei, Stephanie R. Rainey-Smith, Michael Weinborn, Ana Caroline R.Dos Reis, Manohar L. Garg, Ralph N. Martins, Hamid R. Sohrabi

Research outputs 2022 to 2026

Background: Preventive strategies, including adherence to specific dietary patterns, have received increasing attention as approaches to reduce cognitive decline and dementia risk. However, findings remain inconsistent, partly due to differences in dietary assessment methods, cognitive outcomes, and THE consideration of genetic susceptibility factors such as apolipoprotein E (APOE) genotype.

Methods: This study examined associations between dietary patterns and longitudinal cognitive change in 185 older adults without dementia from the Western Australia Memory Study. Participants completed a food frequency questionnaire at baseline and underwent comprehensive neuropsychological assessments at baseline and up to five follow-up visits at 18-month intervals. Composite scores were …

Dietary Vitamin K Intakes And Atherosclerotic Cardiovascular Disease Incidence: Findings From The Uk Biobank, Montana Dupuy, Chengfeng Li, Pratik Pokharel, Liezhou Zhong, Benjamin H. Parmenter, Simone Radavelli-Bagatini, Jack Dalla Via, Allan Linneberg, Jette Jakobsen, Tilman Kühn, Aedín Cassidy, Jonathan M. Hodgson, Joshua R. Lewis, Marc Sim, Nicola P. Bondonno

Research outputs 2022 to 2026

Background and aims: Vitamin K is essential for processes that inhibit vascular and valvular calcification, attributes of atherosclerotic cardiovascular diseases (ASCVDs) and aortic stenosis (AS). Relationships between dietary vitamin K1 and K2 intakes, ASCVD and AS were explored.

Methods: In 112,111 participants from the UK Biobank without ASCVD or AS (median age 59.7 years, 57.3% female), dietary vitamin K1 (μg/day) and K2 (μgPKeq/day) intakes were calculated from Oxford WebQ 24-h dietary questionnaires, using vitamin K food composition databases. Associations with incident ASCVD, ASCVD subtypes and AS, obtained from self-reports, primary care data, hospital records and death registries, were examined using …

The Moderating Effect Of Dietary Fiber And Protein On The Relationship Between Symptoms Of Depression And Anxiety And Cognitive Decline, Samantha L. Gardener, Hilal Salim Said Al Shamsi, Stephanie R. Rainey-Smith, Hamid R. Sohrabi, Kevin Taddei, Colin L. Masters, Ralph N. Martins, W. M.A.D. Binosha Fernando

Research outputs 2022 to 2026

Introduction: Depression and anxiety often co-occur with Alzheimer's disease, exacerbating the associated cognitive impairment. This study examined moderating effects of dietary protein and fiber intake on relationships between depressive and anxiety symptoms, and cognitive decline.

Methods: Cognitively unimpaired (n = 553; 39.4% male, 70.6 ± 9.6 years) provided baseline fiber and protein intake, and had repeated cognitive testing and symptoms of depression/anxiety measured (baseline and up to eight follow-ups over 144 months). Moderation and simple slope analyses were employed in the cohort as a whole and following stratification by sex.

Results: Fiber intake moderated the relationship between change in depressive …

Advancing Dimensional Models Of Psychopathology In Cancer: Insights From Applying The Hierarchical Taxonomy Of Psychopathology (Hitop), Darren Haywood, Jai Carmichael, Miriam K. Forbes, Roman Kotov, Robert F. Krueger, Aidan G.C. Wright, Susan L. Rossell, David Castle, Wendy Lam, Maryam Lustberg, Colin E. Vize, Anna Ugalde, Phyllis Butow, Nicolas H. Hart

Research outputs 2022 to 2026

Objective: Cancer survivors, defined as those living with or beyond a cancer diagnosis, experience more than double the prevalence of psychopathology when compared to the general population. Categorical diagnostic systems, such as the Diagnostic and Statistical Manual of Mental Disorders (DSM), remain dominant in psycho-oncology despite concerns about reliability, validity, and clinical utility for this population. Dimensional frameworks, such as the Hierarchical Taxonomy of Psychopathology (HiTOP), offer a more precise alternative; however, they have not yet been widely applied in cancer survivors. Accordingly, the objective of this research was to examine the applicability of HiTOP to cancer survivors. Methods: Data …

The Effect Of Boosting Dietary Lactobacillus And Phytochemical Rich Foods On Biomarkers Of Longevity—A Phase Ii Randomised Placebo Controlled Trial, Robert J. Thomas, Madeleine Williams, Jeffrey W.F. Aldous, Stacey A. Kenfield, Robert U. Newton

Research outputs 2022 to 2026

As men age, systemic inflammation increases, whereas grip strength (GS) and testosterone levels tend to fall. This rate of decline is known to be influenced by gut microbial health, lifestyle and diet but the role for interventions to slow this decline are less well established. This double-blind randomised controlled trial evaluated the impact, and explored the synergistic potential, of boosting phytochemical rich foods and Lactobacillus probiotics on these physical and biological markers. Two hundred and eight men with untreated early prostate cancer managed with observation only (average age 74 years) received a phytochemical rich supplement (PRS) containing concentrated broccoli, green …

Protective Potential Of Minimally Processed, Plant-Derived Foods Against Steatotic Liver Disease In Early Adulthood, Yasmina Tashkent, Jocelyn M. Choo, Steven L. Taylor, Therese A. O'Sullivan, Dujinthan Jayabalan, Sophie J. Miller, Richard Woodman, Luis Calzadilla-Bertot, Oyekoya T. Ayonrinde, Lawrence J. Beilin, Trevor A. Mori, John K. Olynyk, Alan J. Wigg, Kate R. Muller, Leon A. Adams, Geraint B. Rogers

Research outputs 2022 to 2026

Background & aims: The incidence of steatotic liver disease (SLD) among younger adults is increasing globally. While poor diet is a recognised risk factor, the impact of specific dietary components is unclear. We investigated associations between dietary patterns and SLD markers in younger adults. Methods: Analysis involved 887 members of the Raine Study Generation 2 cohort, assessed at age 27. SLD was defined using a validated MRI volumetric liver fat fraction equation. Dietary intake, assessed by food frequency questionnaires, was summarised using a modified Overall Diet Score (ODS) that classified foods as “healthy” or “unhealthy.” Associations between diet and SLD …

Dietary Vitamin K Intakes, Chronic Obstructive Pulmonary Disease, Adult Asthma, And Lung Function: A Prospective Cohort Study In The Uk Biobank, Chengfeng Li, Pratik Pokharel, Marc Sim, Kevin Murray, Catherine P. Bondonno, Benjamin H. Parmenter, Liezhou Zhong, Montana Dupuy, Howraman Meteran, Jette Jakobsen, Allan Linneberg, Tilman Kühn, Aedín Cassidy, Nicola P. Bondonno

Research outputs 2022 to 2026

Background: Vitamin K–dependent proteins are important for maintaining lung structure and function, yet few studies have examined dietary vitamin K intake in relation to chronic respiratory disease. Objectives: This study aimed to investigate the associations between dietary intakes of vitamin K1 and vitamin K2 and the incidence of chronic obstructive pulmonary disease (COPD), asthma, and lung function. Methods: We analyzed data from 179,062 UK Biobank participants without COPD or asthma. Associations between dietary vitamin K1 and K2 intakes, estimated using the Oxford WebQ 24-h recall, and incident COPD and asthma, identified through hospital, death, and primary care records, were examined …

Recruitment And Retention Of Rural-Dwelling Young Adults Into A Digital Healthy Eating Intervention: Lessons Learned From A Randomized Controlled Trial Of The Veg4me Study, Katherine M. Livingstone, Stephanie R. Partridge, Jonathan C. Rawstorn, Kathleen M. Dullaghan, Yuxin Zhang, Stephanie L. Godrich, Sarah A. Mcnaughton, Gilly A. Hendrie, Lauren C. Blekkenhorst, Ralph Maddison, John C. Mathers, Laura Alston

Research outputs 2022 to 2026

Background/objectives: The study aimed to identify the key methodological challenges and solutions related to recruitment and retention of rural-dwelling young adults into a randomized controlled trial that tests the feasibility of a digital healthy eating intervention (Veg4Me). Methods: Digital registration for a 12-week study was set up as a one-step process without researcher involvement. Participant registrations and recruitment rates were monitored daily using predetermined online preventative measures to identify fraudulent responses and to amend the digital registration process where necessary. Retention rates were monitored daily to identify any necessary amendments to the follow-up protocol. Results: During data collection, n = …

Adherence To The Eat-Lancet Diet And The Risk Of Heart Failure In Individuals With Cardiovascular-Kidney-Metabolic Syndrome Stages 0–3: A Prospective Cohort Study, Peng Fu, Hong Zheng, Kuangyi Wu, Yulong Lan, Dan Wu, Weiqiang Wu, Huancong Zheng, Zefeng Cai, Yuxian Wang, Qiuyue Lin, Bo Zhang, Youren Chen

Research outputs 2022 to 2026

Background and objective – In 2019, the EAT-Lancet Commission on Healthy Diets from Sustainable Food Systems proposed the EAT-Lancet planetary health diet as a universal reference dietary pattern aimed at promoting human health while minimizing environmental degradation. However, epidemiological evidence regarding the association between adherence to the EAT-Lancet diet and the risk of heart failure (HF), particularly among individuals with cardiovascular-kidney-metabolic syndrome (CKMs) stages 0–3, remains limited. Therefore, this study aimed to examine the associations between adherence to the EAT-Lancet dietary pattern, its individual dietary components, and the risk of HF among individuals at CKMs stages 0–3. Materials and methods …

A Clinical Study Examining The Effects Of Dietary Nitrate On Urinary N-Nitrosamines, Catherine P. Bondonno, Michaela L. Sundqvist, Sujata Shinde, Kevin Croft, Jonathan M. Hodgson, Mattias Carlström, Eddie Weitzberg, Jon O. Lundberg

Research outputs 2022 to 2026

BackgroundInorganic nitrate from dietary sources has raised health concerns due to its possible conversion into carcinogenic N-nitrosamines, leading to strict regulations on nitrate concentrations in food and drinking water.ObjectivesIn this study, which was a part of a larger randomized controlled trial, we evaluated urinary excretion of N-nitrosamines in response to daily dietary nitrate intake over a 5-wk period using 2 different forms of nitrate administration.MethodsA total of 231 participants with mild hypertension were randomly assigned into 3 groups. Group 1 (n = 78) consumed vegetables low in nitrate along with a placebo capsule (300 mg potassium chloride). Group 2 (n …

Associations Between Source-Specific Nitrate And Nitrite Intakes And Metabolic Dysfunction-Associated Steatotic Liver Disease In Two Prospective Cohorts, Nicola P. Bondonno, Pratik Pokharel, Benjamin H. Parmenter, Liezhou Zhong, Dorit W. Erichsen, Jörg Schullehner, Kirsten Frederiksen, Cecilie Kyrø, Peter Fjeldstad Hendriksen, Jonathan M. Hodgson, Torben Sigsgaard, Christina C. Dahm, Anne Tjønneland, Alysha S. Thompson, Tilman Kühn, Aedín Cassidy, Anja Olsen, Catherine P. Bondonno

Research outputs 2022 to 2026

SummaryBackground and AimsDietary nitrate and nitrite may have source-dependent effects on liver health: plant-sourced nitrate may confer hepatoprotective benefits via its conversion to nitric oxide, whereas nitrate and nitrite from animal foods, processed meats, or contaminated drinking water may promote liver injury via their conversion to N-nitrosamines. We aimed to examine associations between source-specific nitrate and nitrite intakes and incident metabolic dysfunction-associated steatotic liver disease (MASLD) in two large cohorts. Secondary aims were to assess associations with liver MRI biomarkers and to evaluate whether nitric oxide-pathway gene variants modify associations with plant-sourced nitrate/nitrite.MethodsWe analysed 53,854 participants from the Danish Diet, …

Ellagic Acid Reduces Inulin's Adverse Effects: A Combined Approach To Enhance Therapeutic Potential In Nonalcoholic Steatohepatitis, Tharani Senavirathna, Shafaei, Ricky Lareu, Lois Balmer

Research outputs 2022 to 2026

This mouse study investigates the efficacy of ellagic acid (EA), a potent antioxidant in fruits and nuts, and inulin, a prebiotic known for gut microbiota benefits, in nonalcoholic steatohepatitis (NASH). A Western-style diet (WD) was used to induce NASH in C57BL/6J male mice for 16 weeks. Mice then received EA (100 mg/kg/day, oral gavage, 5 days/week) and/or 5% inulin (w/w in diet) for 12 weeks while continuing WD. Inulin increased energy intake and trended toward higher body weight and fasting glucose. EA reduced liver weights and restored the liver-to-body weight ratio. EA and inulin combined significantly reduced steatosis and hepatocyte …

Preliminary Evidence Of Blood Dna Methylation Changes In Pregnant Women Adhering To A Mediterranean Diet, Grace Tavelli, Nikki Schultz, Joanna Brisbane, Nina Kresoje, Samantha Lodge, Jeremy K. Nicholson, Nicola J. Armstrong, Desiree Silva, Nina D’Vaz, David Martino

Research outputs 2022 to 2026

Background/Objectives: Consumption of a Mediterranean diet (MD) has been associated with reduced incidence of non-communicable diseases and reduced overall mortality, with epigenomic effects representing plausible mediators. The aim of this pilot study was to explore potential epigenetic associations between DNA methylation markers in blood and adherence to an MD in pregnancy. Methods: Fifty-two pregnant women with high or low adherence to an MD throughout pregnancy, who participated in the BioMood ORIGINS study, were selected using an extremes-of-exposure design. DNA methylation (DNAm) profiles from whole blood were generated using the TWIST human methylome panel. We conducted both genome-wide and candidate gene-based …

Oral Ferrous Sulphate Supplementation Has Greater Efficacy, But Lower Tolerance Than Iron (Iii)-Hydroxide Polymaltose Complexes In Exercising Women With Low Iron Stores, Alannah Ka Mckay, Sophie Broome, Nicolin Tee, Kin Lui Yim, Marc Sim, Peter Peeling, Louise M. Burke

Research outputs 2022 to 2026

Background & Aims: Iron deficiency (ID) is a global health condition that predominately affects women. Although oral iron supplementation is an effective treatment strategy for this issue, gastrointestinal complaints are common, and if persistent, may lead to poor compliance. The efficacy of different iron formulations which claim to improve tolerance is unclear. This study assessed the efficacy and tolerability of ferrous sulphate (FS) and iron (III)-hydroxide polymaltose complex (IPC) supplementation in three different cohorts of women.. Methods: This study implemented a 12-week, single-blind, randomized controlled trial. Eligible participants had a serum ferritin concentration of <50 μg/L and met specific inclusion criteria to be enrolled to either the athlete, pre-menopausal or post-menopausal groups. Participants were randomized to receive FS (equivalent to 105 mg elemental iron) plus sodium ascorbate or IPC (equivalent to 100 mg elemental iron) daily. Venous blood samples were collected at baseline, 4-, 8- and 12-weeks of supplementation. A daily questionnaire was completed throughout the study period, documenting supplement tolerance (number and severity of symptoms), exercise load, menstrual characteristics, and supplement compliance. Results: Fifty-seven participants completed the intervention with a compliance rate of 94.9 % [range: 74.8-100 %]. A significant interaction between supplement and time was evident for ferritin (p < 0.001), where FS increased after 12 weeks (+109 %; p < 0.001) but no change was evident in IPC (+7 %; p = 0.727). No differences were detected between cohorts (p > 0.05). The IPC group had a …

Taurine Supplementation And Human Heat Tolerance: Mechanisms, Evidence, And Integration With Heat Acclimation, Cooling, And Hydration, Siavash Naddafha, Jeffrey R. Stout, Cassandra Evans

Research outputs 2022 to 2026

Heat exposure during strenuous exercise increases core temperature and cardiovascular strain, impairing performance and elevating the risk of heat illness. Standard countermeasures include heat acclimation, cooling, and hydration/electrolyte planning. Taurine is a sulfur-containing amino acid present in excitable tissues and widely used as an oral supplement; emerging human trials suggest it can augment thermoregulation, primarily by enhancing eccrine sweating and evaporative heat loss. This narrative review synthesizes mechanistic and applied evidence on taurine during exercise in hot environments and evaluates potential interactions with acclimation, cooling strategies (pre- and per-cooling), and hydration practices. Across a small number of randomized, mostly double-blind …

Creatine Monohydrate For Lean Mass, Strength, And Bone Density In Postmenopausal Women: A Systematic Review And Meta-Analysis, Siavash Naddafha, Jose Antonio, Richard B. Kreider, Jeffrey R. Stout

Research outputs 2022 to 2026

Background: Menopause is accompanied by accelerated losses in muscle mass and strength and declining bone density. Whether creatine monohydrate benefits postmenopausal women are uncertain. Methods: We systematically reviewed randomized, placebo-controlled trials examining creatine supplementation, with or without resistance training (RT), in postmenopausal women. MEDLINE, Embase, Scopus, Web of Science, SPORTDiscus, and Cochrane CENTRAL were searched from 2000 to August 2025, supplemented by trial registries and reference-list screening. Eligible studies included postmenopausal women aged ≥40–45 years, intervention durations ≥6 weeks for primary analyses, and outcomes including DXA-derived lean mass, one-repetition maximum (1RM) strength, bone mineral density, physical function, and safety. Dual …

Tea And Coffee Intakes, Copd, Adult Asthma, And Lung Function In The Uk Biobank, Nicola P. Bondonno, Pratik Pokharel, Benjamin H. Parmenter, Alysha S. Thompson, Amy Jennings, Kevin Murray, Howraman Meteran, Jonathan Hodgson, Tilman Kühn, Aedín Cassidy

Research outputs 2022 to 2026

Introduction: Previous studies suggest non-linear associations between tea and coffee intake and respiratory health, with lower risks at low-to-moderate intakes but higher, unexplored risks at high intakes. This study aims to investigate associations between tea and coffee intake and the risk of chronic obstructive pulmonary disease (COPD) and adult-onset asthma. Methods: Among 366 869 participants of the UK Biobank, intakes of tea and coffee were derived from both a food frequency questionnaire and from repeated 24 hour diet assessments. Cross-sectional associations with measures of lung function [forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), and FEV1/FVC] and …

The Proposed Impact And Anticipated Barriers Of Establishing Food Action Groups In Rural, Regional, And Remote Western Australia, Stephanie L. Godrich, Jess Doe, Sarah Goodwin, Melissa Stoneham, Amanda Devine

Research outputs 2022 to 2026

Objective: To identify Food Action Groups’ activities that positively impact local food systems, and anticipated barriers to establishing Food Action Groups in rural, regional, and remote Western Australia. Design: This qualitative study employed a phenomenological approach. Nineteen focus groups were conducted. Setting: Rural, regional, and remote Western Australia locations, including 11 towns across 8 regions. Participants: A total of 92 participants (61 interest holders and 31 community members). Analysis: A thematic analysis was undertaken. Results: Priority activities included government advocacy to support local commercial food production, processing, and sales; retain food within its region of origin; and home and community …

Transforming The Public Plate: A Menu Of Options For Public Food Procurement That Nourishes People, Place And Planet, Leah Galvin, Emma-Kate Rose, Stephanie Godrich, Dheepa Jeyapalan, Joanna Horton

Research outputs 2022 to 2026

Public food procurement stands as one of the most powerful, yet chronically underutilised, policy levers available to Australian governments. Every day, publicly funded institutions – hospitals, residential aged care facilities, long day care, prisons, schools, defence facilities and community food programs – purchase and serve food to millions of Australians. These are not simply transactions. Collectively, these purchasing decisions shape production systems, supply chains, diets, livelihoods and environmental outcomes. They determine who thrives within our food system and who is left behind. Transforming the Public Plate is an Australian first. It provides the most comprehensive national picture to date of …

Association Between Protein Intake From Animal And Plant Sources And The Presence Of Frailty In Community-Dwelling Australian Women, Trent Bozanich, Jack Dalla Via, Simone Radavelli-Bagatini, Cassandra Smith, Elsa Dent, Anthony Villani, Robin M. Daly, Michael Tieland, Jonathan M. Hodgson, Kun Zhu, Richard L. Prince, Marc Sim

Research outputs 2022 to 2026

We investigated the cross-sectional association between total, animal and plant protein intake with the presence of a multidimensional measure of frailty in older women. Participants included 1380 community-dwelling Australian women, mean (SD) age 75.1 (2.7) years. A validated food frequency questionnaire was used to determine total, plant, and animal protein intake. Frailty was assessed using a frailty index across numerous health domains (scored 0–1, ≥0.25 indicating frailty). Cross-sectional associations were analysed using multivariable-adjusted logistic regression models. In total, 275 (19.9%) women were identified as frail. A non-linear inverse association was observed between higher intakes of total protein and the odds …

Association Of Source-Specific Nitrate Intake With Inflammation And Cardiometabolic Health: A Cross-Sectional Study, Carolyn J. English, Catherine P. Bondonno, Liezhou Zhong, Anna Lohning, Nicola P. Bondonno, Dianne P. Reidlinger

Research outputs 2022 to 2026

This study aimed to explore whether health effects of dietary nitrate depend on its source, by investigating associations between plant and animal-sourced dietary nitrate groups with markers of inflammation and CVD risk factors. Among 100 non-smoking adults (mean age 49 ± 13 years, 31% male), dietary nitrate intake was assessed using food frequency questionnaire (n=100) and 3-day food diary (n=89), combined with nitrate food composition databases. Nitrate intake was classified into plant, naturally occurring animal and additive-permitted meat-sourced groups. Associations between source-dependent nitrate intakes and lipoprotein-associated phospholipase A2 (Lp-PLA2), C-reactive protein (CRP), fasting plasma lipids, anthropometry, and blood pressure were …

Higher Legume And Cruciferous Vegetable Intakes Are Associated With Lower Cardiometabolic Risk In Young Adults: A Cross-Sectional Study, Neal Mcnamara, C. Blekkenhorst, Trevor Mori, Lawrence J. Beilin, Therese A. O'Sullivan

Research outputs 2022 to 2026

Background and aims: Evidence suggests not all vegetables are the same for cardiometabolic health. Intake of specific vegetable groups exhibit significantly stronger associations with improved cardiometabolic health outcomes in adult populations. Few studies have investigated these relationships in young adults. This study aimed to investigate the relative contributions of specific vegetable groups to cardiometabolic risk in a cohort of young adults. Methods and results: A cross-sectional analysis was conducted in participants from the Western Australia-based Raine Study (n = 638) at the 22-year follow-up. Using a food frequency questionnaire, vegetables were grouped into allium, cruciferous, green leafy, legumes, and yellow-orange-red. …

S-Methyl Cysteine Sulfoxide: Its Effects On Cardiometabolic Outcomes In High-Fat Fed C57bl/6 Mice And Relevance To Human Health, Caroline R. Hill, Balmer, Hayley Abbiss, Jonathan M. Hodgson, Joshua R. Lewis, Armaghan Shafaei, Lauren C. Blekkenhorst

Research outputs 2022 to 2026

S-Methyl cysteine sulfoxide (SMCSO) is an organosulfur compound with demonstrated hypocholesterolemic, anti-diabetic, and antioxidant benefits in rodents. However, the doses used have limited translatability for humans. We explored whether SMCSO could blunt development of diet-induced metabolic syndrome features in mice using doses that are potentially more translatable and achievable in humans. Male mice (C57BL/6; n = 54) were randomly assigned into one of five groups: [1] normal-diet; [2] high-fat-diet; or high-fat-diet with [3] 60 mg kg⁻¹, [4] 170 mg kg⁻¹, or [5] 350 mg per kg per body weight (BW) of SMCSO, respectively. Doses were administered …

Exploring The Dairy Milk Matrix Beyond Isolated Nutrients—A Narrative Review, Therese A. O’Sullivan, Analise Nicholl

Research outputs 2022 to 2026

The concept of the food matrix considers individual components along with how they are structured, interact, and are modified during processing. There is increasing interest around the health effects of individual nutrients versus whole foods, creating a need to better understand how the matrix may influence health outcomes. This narrative review explores the dairy milk matrix and compares health effects with those of isolated components, with additional comparisons to plant-based milk alternatives. Comparative evidence suggests that while calcium from food and supplements generally has similar effects (depending on the form of the supplemental calcium), consumption of food-based sources such as …

Maternal Prebiotic Supplementation Modifies Associations Between Intrapartum Antibiotics And Infant Allergy, Summer V.M. Walker, Thomas R. Sullivan, Rachelle A, Pretorius, Nina D'Vaz, Johnny Lo, Johan Garssen, Jeffrey A. Keelan, Desiree Silva, Susan L. Prescott, Claus T. Christophersen, Debra J. Palmer

Research outputs 2022 to 2026

Background: Prebiotics promote growth of beneficial gut bacteria, whereas antibiotics can disrupt the microbial balance, reduce diversity, and potentially cause gut dysbiosis. This investigation aimed to determine whether antibiotic use before, during, or after birth altered the risk of infant allergic disease outcomes within a maternal prebiotic dietary supplementation trial. Methods: Maternal participants were allocated to consume daily prebiotics (galacto-oligosaccharides and fructo-oligosaccharides) or placebo (maltodextrin) powder from 18 to 20 weeks' gestation until 6 months postnatal. All infants had a family history of allergic disease. Maternal and infant antibiotic use was prospectively collected monthly throughout the trial intervention period, and …