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Human milk, breastfeeding, and early neurodevelopmental outcomes for infants with critical CHD
- Kristin M. Elgersma, Melissa L. Engel, Sara E. Ramel, Jessica A. Davis, Anne C. McKechnie, Katie M. Pfister
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- Cardiology in the Young , First View
- Published online by Cambridge University Press:
- 13 May 2024, pp. 1-9
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Human milk improves neurodevelopment for preterm infants, but relationships between human milk and neurodevelopment for infants with critical CHD are unknown. We aimed to (1) explore associations between human milk/direct breastfeeding and neurodevelopment at 1-year and 2-year follow-up and (2) describe patterns of human milk (maternal, donor) and commercial formula during hospitalisation in the first year of life.
This retrospective cohort study included infants who underwent surgery for CHD < 6 months old. The primary outcome was neurodevelopment via Bayley Scales of Infant Development-IV. Analysis included adjusted linear regression for associations between exclusive human milk while inpatient during the first 6 months or any direct breastfeeding while inpatient during the first year of life and 1-year Bayley-IV scores. Models were adjusted for race, insurance type, genetic diagnosis, and length of stay.
Of 98 eligible infants, 40% followed up at 1 year; 27% at 2 years. There were differences in follow-up related to demographics (race, ethnicity) and social determinants of health (insurance type, distance from clinic). In adjusted models, infants who directly breastfed had 13.18 points higher cognition (95% CI: 0.84–25.53, p = 0.037); 14.04 points higher language (2.55–25.53, p = 0.018); and 15.80 points higher motor scores (3.27–28.34, p = 0.015) at 1-year follow-up. Infants fed exclusive human milk had 12.64 points higher cognition scores (−0.53–25.82, p = 0.059).
Future investigation into nutrition and neurodevelopment in the context of critical CHD is warranted. As neurodevelopmental follow-up becomes standard of care in this population, efforts are needed to mitigate disparities in access to this care.
Proxy failure and poor measurement practices in psychological science
- Wendy C. Higgins, Alexander J. Gillett, David M. Kaplan, Robert M. Ross
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- Behavioral and Brain Sciences / Volume 47 / 2024
- Published online by Cambridge University Press:
- 13 May 2024, e75
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We argue that proxy failure contributes to poor measurement practices in psychological science and that a tradeoff exists between the legibility and fidelity of proxies whereby increasing legibility can result in decreased fidelity.
Alcohol milestones and internalizing, externalizing, and executive function: longitudinal and polygenic score associations
- Sarah E. Paul, David A.A. Baranger, Emma C. Johnson, Joshua J. Jackson, Aaron J. Gorelik, Alex P. Miller, Alexander S. Hatoum, Wesley K. Thompson, Michael Strube, Danielle M. Dick, Chella Kamarajan, John R. Kramer, Martin H. Plawecki, Grace Chan, Andrey P. Anokhin, David B. Chorlian, Sivan Kinreich, Jacquelyn L. Meyers, Bernice Porjesz, Howard J. Edenberg, Arpana Agrawal, Kathleen K. Bucholz, Ryan Bogdan
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- Psychological Medicine , First View
- Published online by Cambridge University Press:
- 09 May 2024, pp. 1-14
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Background
Although the link between alcohol involvement and behavioral phenotypes (e.g. impulsivity, negative affect, executive function [EF]) is well-established, the directionality of these associations, specificity to stages of alcohol involvement, and extent of shared genetic liability remain unclear. We estimate longitudinal associations between transitions among alcohol milestones, behavioral phenotypes, and indices of genetic risk.
MethodsData came from the Collaborative Study on the Genetics of Alcoholism (n = 3681; ages 11–36). Alcohol transitions (first: drink, intoxication, alcohol use disorder [AUD] symptom, AUD diagnosis), internalizing, and externalizing phenotypes came from the Semi-Structured Assessment for the Genetics of Alcoholism. EF was measured with the Tower of London and Visual Span Tasks. Polygenic scores (PGS) were computed for alcohol-related and behavioral phenotypes. Cox models estimated associations among PGS, behavior, and alcohol milestones.
ResultsExternalizing phenotypes (e.g. conduct disorder symptoms) were associated with future initiation and drinking problems (hazard ratio (HR)⩾1.16). Internalizing (e.g. social anxiety) was associated with hazards for progression from first drink to severe AUD (HR⩾1.55). Initiation and AUD were associated with increased hazards for later depressive symptoms and suicidal ideation (HR⩾1.38), and initiation was associated with increased hazards for future conduct symptoms (HR = 1.60). EF was not associated with alcohol transitions. Drinks per week PGS was linked with increased hazards for alcohol transitions (HR⩾1.06). Problematic alcohol use PGS increased hazards for suicidal ideation (HR = 1.20).
ConclusionsBehavioral markers of addiction vulnerability precede and follow alcohol transitions, highlighting dynamic, bidirectional relationships between behavior and emerging addiction.
The contribution of cannabis use to the increased psychosis risk among minority ethnic groups in Europe
- J. P. Selten, M. Di Forti, D. Quattrone, P. B. Jones, H. E. Jongsma, C. Gayer-Anderson, A. Szöke, P. M. Llorca, C. Arango, M. Bernardo, J. Sanjuan, J. L. Santos, M. Arrojo, I. Tarricone, D. Berardi, A. Lasalvia, S. Tosato, C. la Cascia, E. Velthorst, E. M. A. van der Ven, L. de Haan, B. P. Rutten, J. van Os, J. B. Kirkbride, C. M. Morgan, R. M. Murray, F. Termorshuizen
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- Psychological Medicine , First View
- Published online by Cambridge University Press:
- 09 May 2024, pp. 1-10
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Background
We examined whether cannabis use contributes to the increased risk of psychotic disorder for non-western minorities in Europe.
MethodsWe used data from the EU-GEI study (collected at sites in Spain, Italy, France, the United Kingdom, and the Netherlands) on 825 first-episode patients and 1026 controls. We estimated the odds ratio (OR) of psychotic disorder for several groups of migrants compared with the local reference population, without and with adjustment for measures of cannabis use.
ResultsThe OR of psychotic disorder for non-western minorities, adjusted for age, sex, and recruitment area, was 1.80 (95% CI 1.39–2.33). Further adjustment of this OR for frequency of cannabis use had a minimal effect: OR = 1.81 (95% CI 1.38–2.37). The same applied to adjustment for frequency of use of high-potency cannabis. Likewise, adjustments of ORs for most sub-groups of non-western countries had a minimal effect. There were two exceptions. For the Black Caribbean group in London, after adjustment for frequency of use of high-potency cannabis the OR decreased from 2.45 (95% CI 1.25–4.79) to 1.61 (95% CI 0.74–3.51). Similarly, the OR for Surinamese and Dutch Antillean individuals in Amsterdam decreased after adjustment for daily use: from 2.57 (95% CI 1.07–6.15) to 1.67 (95% CI 0.62–4.53).
ConclusionsThe contribution of cannabis use to the excess risk of psychotic disorder for non-western minorities was small. However, some evidence of an effect was found for people of Black Caribbean heritage in London and for those of Surinamese and Dutch Antillean heritage in Amsterdam.
Perioperative cefazolin prescribing rates following suppression of alerts for non-IgE-mediated penicillin allergies
- Ashley Bogus, Kelley McGinnis, Joshua Vergin, Sara M. May, Richard J. Hankins, Erica Stohs, Trevor C. Van Schooneveld, Scott J. Bergman
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- Infection Control & Hospital Epidemiology , First View
- Published online by Cambridge University Press:
- 09 May 2024, pp. 1-5
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Background:
Cefazolin is the preferred antimicrobial for the prevention of surgical site infections (SSIs) in many procedures. The presence of penicillin allergies can influence prescribing of alternative agents like vancomycin. In April 2022, Nebraska Medicine implemented a suppression of alerts for non-IgE-mediated and nonsevere penicillin allergies in the electronic medical record (EMR) upon cephalosporin prescribing. The objective of this study was to evaluate changes in perioperative cefazolin for SSI prophylaxis.
Methods:This was a quasi-experimental study of patients undergoing procedures for which cefazolin was the preferred agent per institutional guidance. Education on the change was distributed via e-mail to surgical staff and pharmacists. Pre- and post-intervention data were collected from April 2021 through March 2022 and April 11, 2022, through October 2022, respectively. Chart review was performed on patients with reported penicillin allergies for the top surgical procedures with <50% cefazolin utilization pre-intervention. The primary outcome was the administration of perioperative cefazolin in patients with penicillin allergies, including unknown reactions.
Results:A total of 6,676 patients underwent surgical procedures (pre-intervention n = 4,147, post-intervention n = 2,529). Documented penicillin allergies were similar between the pre- and post-intervention group (12.3% vs. 12.6%). In individuals with documented penicillin allergies, cefazolin prescribing increased from 49.6% to 74.3% (p < 0.01). Chart review for safety outcomes identified no difference in new severe reactions, rescue medication, SSIs, acute kidney injury, postoperative Clostridioides difficile infection, or methicillin-resistant Staphylococcus aureus infections.
Conclusion:Following the suppression of EMR alerts for non-IgE-mediated and nonsevere penicillin allergies, cefazolin prescribing rates for SSI prophylaxis significantly improved.
Associations between food groups and biomarkers of inflammation: Are some foods groups more protective than others?
- C. English, M. Jones, A. Lohning, H. Mayr, H. MacLaughlin, D. Reidlinger
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- Proceedings of the Nutrition Society / Volume 83 / Issue OCE1 / April 2024
- Published online by Cambridge University Press:
- 07 May 2024, E189
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The consumption of healthy foods such as whole grains, vegetables, fruits, nuts, legumes, dairy, and fish is associated with decreased risk of cardiovascular disease (CVD). CVD is an inflammatory disease caused by atherosclerosis. Inflammation is measured clinically using hsCRP, however hsCRP is not specific to CVD. Novel pro-inflammatory markers, such as platelet-activating factor (PAF) and lipoprotein-associated phospholipase A2 (Lp-PLA2), have garnered attention due to their specific roles in endothelial dysfunction and CVD risk. During the COVID 19 outbreak research highlighted a potential interaction between PAF and Lp-PLA2 and the SARS COVID 19 virus(1-3) and related adenovirus-vector and mRNA vaccines.4 This cross-sectional study investigated the association between PAF, Lp-PLA2, hsCRP, and intake of healthy food groups including fruit, cruciferous and other vegetables, grains, meat and poultry, fish and seafood, nuts and legumes, and dairy in 100 adults (49 ± 13 years, 31% male) with variable CVD risk. Data were collected across four groups during May and July 2021 (Groups 1 and 2 - CVD risk factors) and January and April 2022 (Groups 3 and 4 - no CVD risk factors). Fasting PAF, Lp-PLA2 and hsCRP and usual dietary intake (food frequency questionnaire) were measured. Food intake was converted into serves and classified into food groups. Correlations and multiple regressions were performed. Contrary to expectations, mean PAF was lower for groups 1 and 2 (n = 46, mean PAF 3.31 ± 1.66 ng/mL) compared to groups 3 and 4 (n = 54, mean PAF 19.82 ± 12.95 ng/mL) p < 0.001 with a large effect size (eta squared 0.665). Cruciferous vegetables were associated with lower levels of PAF (β = -.27, CI [−0.41, −0.14], p < .001) with a one serve increase in cruciferous vegetables per day associated with an 24% reduction in PAF. Nuts and legumes were associated with lower levels of hsCRP (β = -.51, CI [−0.81, −0.22], p<.001) with an increase of one serve per day associated with a 40% reduction in hsCRP. There were small inverse associations between cheese and both PAF (β = -.15, CI [−0.27, −0.03], p = .017) and Lp-PLA2 (β = -.26, CI [−0.47, −0.04], p = .024), however these were not significant at the Bonferroni-adjusted P<.005 level. In conclusion, cruciferous vegetables and nut and legume consumption were associated with lower levels of inflammation. The lack of associations between PAF and Lp-PLA2 and other healthy foods may be due to confounding by COVID-19 infection and vaccination programs which prevents any firm conclusion on the relationship between PAF, Lp-PLA2 and food groups. Future research should aim to examine the relationship with these novel markers and healthy food groups in a non-pandemic setting.
Assessment of food availability in New Zealand primary schools
- D. Pillay, M. Piddington, A. Ali, C. Wham
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- Proceedings of the Nutrition Society / Volume 83 / Issue OCE1 / April 2024
- Published online by Cambridge University Press:
- 07 May 2024, E10
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Childhood obesity and overweight rates in New Zealand are considerably higher than that globally with one in three children aged between 2-14 years being overweight or obese(1). Children’s dietary knowledge and food preferences are influenced by various factors including the food environment. Schools are an excellent setting to influence children’s dietary behaviours since they have the potential to reach almost all children during the first two decades of their lives. However, previous analyses indicate many school canteens and food providers do not supply foods that promote healthy eating and nutrition behaviours (2,3). The Ministry of Health (MoH) recently implemented a ‘Food and Drink Guidance for Schools’ which utilises a traffic-light framework dividing foods into three categories: ‘green’, ‘amber’, and ‘red’(4). The aim of this study was to assess primary school canteen food menus against the newly implemented MoH Guidance. A convenience sample of 133 primary school canteen menus were collected in 2020 as part of the baseline evaluation of the Healthy Active Learning initiative across New Zealand. Four researchers (three nutritionists and one dietitian) developed a menu analysis toolkit to undertake the analysis of all menus collected. The toolkit provided a breakdown of commonly packaged foods and meals/menu items available to purchase within schools based on Health Star Ratings, ingredients, and/or standard recipes. Assumptions were created for menu items requiring additional detail to be categorised according to the guidance through consensus by all four researchers. Primary school menus were coded by two researchers, and intercoder reliability was ensured by independent coding and cross-checking of 10% of menus. Descriptive and inferential analyses were conducted using IBM SPSS and P<0.05 denoted significance. Analyses of canteen menus revealed that most menu items belonged to the less healthy amber (41.0%) and red (40%) food categories. Low decile schools had a lower percentage of green food items (8.6%) and a higher percentage of red food items (48.3%) compared to high decile schools (p = 0.028). Similarly, schools in low deprivation areas had a significantly higher percentage of green food items (14.2%) compared to high deprivation areas (8.6%) (p = 0.031). Sandwiches, filled rolls, and wraps were the most commonly available items (86%) followed by baked foods and foods with pastry (71%). Sugar-sweetened beverages were just as prevalent as water on school food menus (54% each). Over half of in-house catered canteen menu items were classified as 'red’ foods (55.3%). This study highlights that most school canteens were not meeting the guidelines for healthy food and drink provision outlined by the MoH. Improving school food availability for children in socioeconomically deprived areas needs to be prioritised to reduce inequities. Findings suggest the need for more robust national policies and mandated school guidance to improve the food environments in New Zealand schools.
Role of Extracellular Vesicles (EVs) in Mediating Antioxidant Response to a Glucoraphanin Rich Meal
- N. Mitra, F. Ramzan, H.H. Phua, C. Blenkiron, A. Artuyants, C. Pook, F. Lithander, M. Foster, R. Mithen
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- Proceedings of the Nutrition Society / Volume 83 / Issue OCE1 / April 2024
- Published online by Cambridge University Press:
- 07 May 2024, E170
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Aging is associated with increasing oxidative stress and declining antioxidant defences, making the body susceptible to various chronic conditions. Cruciferous vegetables contain glucoraphanin, which is metabolised into sulforaphane (SFN) in the gut(1). SFN activates a mechanism enhancing antioxidant defences that may contribute to a reduction in risk of age-related chronic diseases. Our hypothesis proposes that consuming cruciferous vegetables releases hepatic extracellular vesicles (EVs), which carry with a cargo of antioxidant proteins, into the systemic circulation(2) that are transported to ‘at risk’ tissues. We seek to characterise the antioxidant protein content of EVs from blood samples of healthy human volunteers from a prospective dietary intervention study trial called (GLOBE). The GLOBE study employs a randomised, single-blind, two-arm crossover design and involves 12 healthy male or female adults aged >55 years, at the time of enrolment, have a BMI in the range of 18.5-30 kg/m2, and have self-reported healthy (are not suffering from current illness like cancer, and gastrointestinal diseases including coeliac, Crohn’s, colitis, and irritable bowel syndrome) and not using any medications like antacids, laxatives and antibiotics which can interfere with normal digestive or metabolic processes. The dietary intervention consists of two commercially available treatments, one of which is a glucoraphanin-rich vegetable soup, while the other vegetable soup lacks glucoraphanin. Our initial focus lies in optimizing and standardizing a method for routinely characterizing EVs derived from healthy volunteers participating in dietary intervention studies. We specifically aim to extract EVs from a minimal plasma volume (2ml) using size exclusion chromatography (SEC). Subsequently, we intend to employ this method to analyse EVs obtained from 161 plasma samples collected from 12 participants during the GLOBE study for different time points like 0, 120, 240, 360, 480 min, 24 and 48 hr. Our goal is to gain insight into the role of EVs as part of the mechanisms by which consuming a moderate quantity of cruciferous vegetables may confer health benefits. Our research carries the potential to establish a standardised approach to the characterisation of EVs from healthy individuals which has several applications in nutrition research.
The balance of evidence on 100% juice & health: A systematic umbrella review of meta-analyses
- E.L. Beckett, F. Fayet-Moore, T. Cassettari, C. Starck, J. Wright, M. Blumfield
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- Proceedings of the Nutrition Society / Volume 83 / Issue OCE1 / April 2024
- Published online by Cambridge University Press:
- 07 May 2024, E52
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Fruit and vegetable intakes are major modifiable determinants of risk for non-communicable disease(1), yet intake levels remain low(2) and multiple barriers (cost, access, perishability, preparation skills) exist(3,4). 100% fruit and vegetable juices contain key micronutrients and bioactive compounds (5–7) and may help circumvent these barriers to consumption(6,7). However, their role in dietary guidelines and models of healthy eating remains controversial due to their free sugars and reduced dietary fibre content, relative to whole fruits and vegetables(6,7). Therefore, we conducted a systematic umbrella review of systematic literature reviews (SLRs) with meta-analyses assessing the relationships between 100% juice consumption and human health outcomes. Four databases (Medline, Cochrane Library, EMBASE, and CINAHL) were systematically searched for SLRs with meta-analyses of human prospective cohort, case-control, and intervention studies examining the relationship between 100% juice and any health outcome through to 20th October 2022. Screening (Covidence), quality (GRADE)(8), risk of bias (ROBIS)(9) and content overlap (corrected covered area(10)) tools were applied, and extracted data were narratively synthesised. The protocol was pre-registered (PROSPERO) and conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) checklists. 15 SLRs on 100% fruit juice including 51 primary meta-analyses, 6 dose-response analyses, and 87 sub-analyses were eligible for inclusion. No eligible studies on vegetable juice were found. Included studies represented data from almost 2 million subjects with a range of doses (50-1200mL/day) and timeframes (hours to years). Significant improvements in health outcomes were found in 19.6% of included meta-analyses (blood pressure, flow-mediated dilation, IL-6, c-reactive protein, and stroke mortality), and increased disease risks were found in 5.9% of included meta-analyses (CVD mortality, prostate cancer, and type II diabetes). The remainder (74.5%) found no significant difference (blood lipids, weight, liver function, metabolic markers, colorectal and breast cancers, and multiple inflammatory markers). The ROBIS quality assessment rated nine SLRs as low risk of bias, three as unclear and three as high. Using GRADE, confidence in the body of evidence ranged from very low (27 primary and 79 secondary meta-analyses) to low (19 primary and 13 secondary meta-analyses), and medium (4 primary and one secondary meta-analyses.) Findings show 100% juice consumption has limited risks of harm and some potential benefits, over a broad range of doses, including some that are relatively high, and time periods. The positive associations between 100% juice consumption and specific health outcomes relevant to population health may be explained by multiple mechanisms, including the vitamin, mineral, and bioactive contents. The balance of evidence suggests that 100% may have a neutral or beneficial place in general, population-level dietary guidelines.
The effectiveness of a Lactobacillus probiotic on measures of psychosocial health in adults diagnosed with subthreshold depression: a double-blind, randomised, placebo-controlled trial
- G. Moschonis, K. Sarapis, S. Resciniti, R. Hall, K. Yim, M. Tonkovic, C. Fitzgerald, F. Anixiadis, Q. Nhu Dinh, M. Hale, B. Wright, M. Pane, C.J. Tuck, J.R. Biesiekierski
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- Proceedings of the Nutrition Society / Volume 83 / Issue OCE1 / April 2024
- Published online by Cambridge University Press:
- 07 May 2024, E58
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Depression is the leading cause of disability worldwide(1). The microbiota-gut-brain axis may play a role in the aetiology of depression, and probiotics show promise for improving mood and depressive state(2). Further evidence is required to support mechanisms and in high-risk populations, such as those with sub-threshold depression (which may be 2-3 times more prevalent than diagnosed depression)(3). The aims were to assess the efficacy of a probiotic compared with placebo in reducing the severity of depressive symptoms in participants with subthreshold depression, and to investigate potential mechanistic markers of inflammatory, antioxidant status and stress response. A double-blind, randomised, placebo-controlled trial was conducted in participants meeting diagnosis of subthreshold depression (DSM-5); aged 18-65 years; ≥18.5 kg/m2 body mass index; not taking antidepressants, centrally acting medications, probiotics nor antibiotics for at least 6 weeks. The probiotic (4 × 109 AFU/CFU, 2.5 g freeze-dried powder containing Lactobacillus fermentum LF16 (DSM26956), L. rhamnosus LR06 (DSM21981), L. plantarum LP01 (LMG P-21021), Bifidobacterium longum BL04 (DSM 23233)) or placebo was taken daily for 3-months. Data was collected at 3 study visits (pre-, mid- (6 weeks), post-intervention). Self-reported questionnaires measured psychological symptoms (Beck Depression Inventory, BDI; Hospital Anxiety Depression Scale, HADS) and quality of life. Blood and salivary samples were collected for biomarkers including cortisol awakening response (CAR). General linear models examined within-group and between-group differences across all time points. Thirty-nine participants completed the study (n = 19 probiotic; n = 20 placebo) using intention-to-treat analysis. The probiotic group decreased in BDI score by −6.5 (95% CI −12.3; −0.7) and −7.6 (95% CI −13.4; −1.8) at 6 and 12 weeks, respectively. The HADS-A score decreased in the probiotic group by −2.8 (95% CI −5.2; −0.4) and −2.7 (95% CI −5.1; −0.3) at 6 and 12, respectively. The HADS-D score decreased in the probiotic group by −3.0 (95% CI −5.4; −0.7) and −2.5 (−4.9; −0.2) at 6 and 12 weeks of intervention, respectively. No between group differences were found. There were no changes in perceived stress or quality of life scores. The probiotic group had reduced hs-CRP levels (7286.2 ± 1205.8 ng/dL vs. 5976.4 ± 1408.3; P = 0.003) and increased total glutathione (14.2 ± 8.9 ng/dL vs. 9.3 ± 4.7; P = 0.049) compared to placebo, post intervention. Lower levels of CAR were found in the probiotic compared to placebo (−0.04 ± 0.17 μg/dL vs. 0.16 ± 0.25; P = 0.009). A significant reduction in depressive symptoms and anxiety was observed within the probiotic group only. These results were supported by improvements observed in biomarkers, suggesting probiotics may improve psychological wellbeing in adults experiencing sub-threshold depression, by potential pathways involved in central nervous system homeostasis and inflammation. Future analyses are required to understand changes within the intestinal microbiota and to clarify how their metabolites facilitate emotional processing.
Cognitively testing Aotearoa’s food security questionnaire in the modern context
- B. Follong, C. Haliburton, S. Mackay, J. Grey, M. Maiquez, C. Ni Mhurchu
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- Journal:
- Proceedings of the Nutrition Society / Volume 83 / Issue OCE1 / April 2024
- Published online by Cambridge University Press:
- 07 May 2024, E156
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The eight well-known food security indicators were developed in 1997 using a stepwise process that involved five focus group interviews (one Māori, one Pakeha, two Pacific, and one mixed ethnicity) of 8-16 people, all of whom were either on a low income or were government beneficiaries(1). As part of the development of the tools and methods for a future New Zealand National Nutrition Survey, these eight indicators were considered for inclusion. The Māori and Technical Advisory Groups convened for the development of the National Nutrition Survey foresaw issues with the interpretation of some of the questions given the changes in the food environment and sources of food assistance in the last 25 years and recommended that cognitive testing should be conducted to see if changes were required. Participants were recruited through two community organisations, a local marae, and community Facebook pages. Participants were given the option of participating in a one-on-one interview or as part of a focus group. During each session, participants were asked five (three original and two new) questions relating to food security (running out of basics, use of food assistance, household food preparation and storage resources). After each question, the participants were asked a series of additional probing questions to ascertain whether they had interpreted the question as intended. All interviews were audio recorded and transcribed, and a qualitative analysis was performed on the transcripts to determine areas of concern with each question. A total of 46 participants completed the cognitive testing of the food security questions, including 26 aged 18-64 years, and 20 aged 65+ years. Participants also spanned a range of ethnicities including 8 Māori, 15 Pasifika, 15 Asian, and 8 New Zealand European or Other. Just over half of the participants (n=24) reported themselves to be financially secure, 16 participants reported that their financial security was borderline, 1 participant reported that they were not at all financially secure, and 5 participants declined to answer. Variable interpretations of terms by participants were found in all questions that were tested. Therefore, answers to the food security questions may have not reflected the actual experience of participants. This study also identified other dimensions of food security not assessed by the current eight indicators (e.g., lack of time, poor accessibility). These findings indicate that the food security questions need to be improved to ensure they are interpreted as intended and that new questions are needed that considers all dimensions of food insecurity (i.e., access, availability, utilisation, and stability). These new and amended questions should be cognitively tested in groups that are more likely to be experiencing food insecurity.
Women with Gestational Diabetes Mellitus do not have compromised polyunsaturated fatty acid status
- B.J. Meyer, M. Dekker-Nitert, C. Cortie, D.J. Freeman, H.L. Barrett
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- Proceedings of the Nutrition Society / Volume 83 / Issue OCE1 / April 2024
- Published online by Cambridge University Press:
- 07 May 2024, E141
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Pregnant women who develop pre-eclampsia (PE) and/or intra-uterine growth restriction (IUGR) have reduced polyunsaturated fatty acid (PUFA) status compared to healthy pregnancy(1). It is unknown if pregnant women diagnosed with Gestational Diabetes Mellitus (GDM), and their offspring, also have compromised PUFA status. To determine if women with GDM, and their offspring, have altered PUFA status compared to healthy pregnancy. Pregnant women were recruited from Glasgow Scotland, and Brisbane, Australia from antenatal clinics for this cross sectional study. Third trimester maternal blood samples were collected after an overnight fast and cord blood samples were collected at delivery. Plasma fatty acids were analysed using gas chromatography from women with GDM (n = 37) and healthy pregnancies (n = 27) and their respective offspring (n = 31, from women with GDM, and n = 27 from healthy women). T-tests were used to determine significant differences between maternal with GDM and healthy pregnancy, as well as for their offspring and significance was set at p<0.05. Previously, erythrocyte fatty acids were analysed from women with PE (n = 21), IUGR (n = 13) and healthy pregnancies (n = 86)(1). All results were expressed as mol percent of total fatty acids. There were no differences in maternal plasma arachidonic acid (4.51 ± 1.23 vs. 4.72 ± 0.64, p = 0.39) and plasma EPA & DHA (2.33 ± 0.74 vs 2.69 ± 1.04, p = 0.14) in women with GDM and healthy pregnancies, respectively. There were no differences in fetal plasma arachidonic acid (11.58 ± 2.26 vs. 12.63 ± 1.69, p = 0.08) and plasma EPA & DHA (4.44 ± 1.17 vs. 4.44 ± 1.00, p = 0.89) in offspring from women with GDM and healthy pregnancies, respectively. Women with PE and IUGR had approximately 25% lower erythrocyte EPA & DHA and 35% lower erythrocyte arachidonic acid compared to healthy pregnant(1). Offspring from women with PE and IUGR had approximately 25% lower erythrocyte EPA & DHA and 22% lower erythrocyte arachidonic acid compared to healthy pregnancy(1).Women with PE and IUGR had lower PUFA status likely due to reduced PUFA synthesis(1) and offspring from women with PE and IUGR had reduced PUFA status likely due to ectopic fat in placenta tissue(2). Women with GDM do not have compromised PUFA status suggesting there is no reduced synthesis and transport of PUFA. Offspring from women with GDM do not have reduced PUFA status suggesting there is no problem with PUFA transport across the placenta, unlike offspring from women with PE and/or IUGR. Women with GDM, and their offspring, do not have compromised plasma PUFA status compared to healthy pregnancy.
Change in symptoms of depression and eating disorders in adolescents with obesity participating in a clinical trial
- H. Jebeile, C. Kwok, E.T. House, M. Inkster, K. Day, S. Lang, A. Grunseit, M.L. Gow, N.B. Liseter
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- Proceedings of the Nutrition Society / Volume 83 / Issue OCE1 / April 2024
- Published online by Cambridge University Press:
- 07 May 2024, E75
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Depression and eating disorder (ED) risk are heightened during adolescence(1) and both were exacerbated during COVID-19 lockdowns. This analysis reports changes in self-reported symptoms of depression and eating disorders throughout the Fast Track to Health trial. Fast Track to Health was a 52-week multi-site randomised-controlled trial, conducted 2018-2023, comparing intermittent (IER) and continuous energy restriction (CER) in adolescents with obesity and ≥1 associated comorbidity(2). The Centre for Epidemiologic Studies Depression Scale-revised 10-item version for adolescents (CESDR) was used to assess symptoms of depression (no symptoms, sub-threshold, or possible, probable, major depressive episode). Eating Disorder Examination Questionnaire (EDE-Q) was used to assess ED risk; defined as global score ≥2.7, ≥2 episodes of binge eating with/without loss of control, or ≥1 episode of purging within the last 28-days. The Binge Eating Scale (BES) assessed severity of binge eating (no binge eating, mild/moderate, severe). Adolescents were monitored for disordered eating during dietetic consults. Linear mixed models, retaining all data consistent with intention-to-treat analysis, were used to estimate the change in outcomes from baseline to week-52. Descriptive statistics were used to describe the number of participants meeting screening criteria at baseline and week-52. One hundred and forty one adolescents were enrolled and 97 completed the trial, with median (IQR) EDE-Q score 2.28 (1.43 to 3.14), CESDR 9.00 (4.0 to 14.5) and BES 11.0 (5.0 to 17.0) at baseline. EDE-Q (change in estimated marginal means [SE], IER −0.63 [0.18], CER −0.56 [0.17]) and CESDR (IER −2.70 [1.15], CER −3.87 [1.07]) scores reduced between baseline and week-52 in both groups (p<0.05) with no difference between groups. There was a between group difference (p = 0.019) in change in BES. The IER group had a reduction between baseline and week-52 (−3.72 [1.27]) and the CER group had no change. At baseline, 31 (22%) adolescents were classified as having a possible/probable/major depressive episode, 110 (78%) met ≥1 ED criteria and 28 (21%) as mild/moderate or severe binge eating, reducing to 8 (9%), 56 (61%) and 15 (16%) respectively at week-52. A small sub-group of adolescents required additional support for disordered eating. Overall, treatment-seeking adolescents with obesity have symptoms of depression and ED. Although symptoms reduce for most, some required additional support. Screening and monitoring for depression and ED are important to ensure early intervention.
Inflammatory Bowel Disease exercise and diet (IBDeat) habits study: exploring lifestyle habits and cardiometabolic disease risk factors
- J.M. Yap, C. Wall, R. Turner, K. Meredith-Jones, H. Osborne, M. Schultz
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- Journal:
- Proceedings of the Nutrition Society / Volume 83 / Issue OCE1 / April 2024
- Published online by Cambridge University Press:
- 07 May 2024, E69
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Patients with inflammatory bowel disease (IBD) have higher risk of developing cardiometabolic diseases due to chronic gut and systemic inflammation which promotes atherogenesis. Adopting healthy lifestyle habits can prevent development of cardiometabolic diseases, but can be challenging for people with IBD. The IBD exercise and diet (IBDeat) habits study describes the lifestyle habits and cardiometabolic disease risk factors of adults with IBD in Aotearoa, New Zealand (NZ).
This is a cross-sectional study including adult NZ IBD patients recruited online via Crohn’s and Colitis NZ and Dunedin hospital from 2021 to 2022. An online questionnaire collected demographics, smoking status, comorbidities, medications, disease severity scores, quality of life, physical activity, and dietary intake. The Dunedin cohort had physical measurements taken including anthropometrics, handgrip strength, blood pressure, body composition (bioelectrical impedance), blood nutritional markers, and faecal calprotectin. Data were compared to established reference values and linear regression analysis investigated associations between lifestyle habits and cardiometabolic risk factors. The study received University of Otago ethical approval (reference: H21/135). A total of 213 adults with IBD (54% Crohn’s disease; 46% ulcerative colitis) completed the online questionnaire and a subset of 102 from Dunedin provided physical measurements. Participants characteristics were: median age 37 (IQR 25, 51) years, 71% female, 82% NZ European, 4% smokers, and 1.4% had active IBD. Thirty-five percent of participants had at least one comorbidity and 34% of participants had poor quality of life. Known dietary risk factors associated with cardiometabolic diseases were common: low intakes of vegetables (77%), fruit (51%), fibre (35%) and high intakes of total fat (84%) and saturated fat (98%). Physical activity recommendations were met by 61% of participants and 63% reported barriers to being more active from fatigue (63%) and joint pain (54%). Other cardiometabolic risk factors were common in the Dunedin cohort: high LDL (79%) and total cholesterol (76%), central adiposity (64%), high body fat percentage (44%), high blood pressure (26%), and low handgrip strength (25%). Regression analysis showed that vegetable (per serve) and carbohydrate (per 5% of total daily energy intake (TE)) were associated with 0.22 mmol/L (95%CI 0.43, 0.013) and 0.20 mmol/L (95%CI 0.34, 0.057) lower LDL cholesterol. Discretionary food items were associated with higher LDL cholesterol, 0.11 mmol/L per daily serve (95%CI 0.028, 0.19). A 5% difference in TE intake from carbohydrate was associated with 1.11% (95%CI 2.22%, 0.0038%) lower body fat percentage while protein was associated with 3.1% (95%CI 0.81%, 5.39%) higher body fat percentage. Physical activity had weak associations with cardiometabolic disease risk factors. Adults with IBD have multiple modifiable risk factors for cardiometabolic diseases. Vegetable and carbohydrate intake were associated with lower LDL cholesterol concentration while discretionary food items showed otherwise. Protein intake was associated with higher body fat percentage.
Anthocyanins attenuate vascular and inflammatory responses to a high fat high energy meal challenge in overweight older adults: A cross-over, randomised, double-blind clinical trial
- V. do Rosario, K.E. Charlton, C. Chang, M. Francois, S. Roodenrys, K. Kent, K. Weston-Green
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- Journal:
- Proceedings of the Nutrition Society / Volume 83 / Issue OCE1 / April 2024
- Published online by Cambridge University Press:
- 07 May 2024, E46
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Postprandial metabolic imbalances are important indicators of later developing cardiovascular disease (CVD)(1). This study investigated the effects of food anthocyanins on vascular and microvascular function, and CVD associated biomarkers following a high fat high energy (HFHE) meal challenge in overweight older adults. Sixteen subjects (13 female, 3 male, mean age 65.9 SD 6.0 and body mass index 30.6 kg/m 2 SD 3.9) participated in a crossover, randomised, controlled, double-blind clinical trial (Australian New Zealand Clinical Trials Registry # ACTRN12620000437965). Participants consumed a HFHE breakfast meal (65g total fat; 33g saturated fat) together with a 250 mL dose of either intervention (Queen Garnet Plum providing 201 mg anthocyanins) or control (apricot) juice. A wash-out period of 14 days occurred between meal challenges, with a 4-day run-in period for juice consumption before each challenge. Blood samples and blood pressure measures were collected at baseline, 2 h and 4 h following the HFHE meal. Vascular function, assessed using flow mediated dilatation (FMD), and microvascular cutaneous vascular reactivity, measured using Laser Speckle Contrast Imaging (LSCI), were evaluated at baseline and 2 h after the HFHE meal. Participants had a higher 2 h postprandial FMD (+1.14%) and a higher microvascular post-occlusive reactive hyperaemia (+0.10 perfusion units per mmHg) when allocated to the anthocyanin compared to the control arm (P = 0.019 and P = 0.049, respectively). C-reactive protein was lower 4 h postprandially in the anthocyanins (1.80 mg/L, IQR 0.90) vs control arm (2.30 mg/L, IQR 1.95) (P = 0.026), accompanied by a trend for lower concentrations of interleukin-6 (P = 0.075). No significant postprandial differences were observed between treatments for blood pressure, triacylglycerol, total cholesterol, serum derivatives of reactive oxidative metabolites, tumor necrosis factor α, interleukin-1 β, or maximum microvascular perfusion following iontophoresis of acetylcholine. Fruit-based anthocyanins attenuated the potential postprandial detrimental effects of a HFHE challenge on parameters of vascular and microvascular function, and inflammatory biomarkers in overweight older adults. Anthocyanins may reduce cardiovascular risk associated with endothelial dysfunction and inflammatory responses to a typical high fat ‘Western’ meal.
Parents’ perceptions of the Tasmanian School Lunch Project - interim findings
- K.J. Smith, V. Cleland, J. Dunbabin, B. Fraser, M. Reardon, C. Galloway, K. DePaoli, L. Sutton, F. Proudfoot, K. Jose
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- Journal:
- Proceedings of the Nutrition Society / Volume 83 / Issue OCE1 / April 2024
- Published online by Cambridge University Press:
- 07 May 2024, E27
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Most Australian school students take a packed lunch to school(1). However, parents have reported many barriers to packing a healthy lunch(2). Subsequently, foods eaten during school hours are not consistent with the Australian Dietary Guidelines, with discretionary foods providing about 44% of energy consumed during this time(3). In addition, some children go to school without any food for lunch or money to buy lunch. The Tasmanian School Lunch Project provides free nutritious cooked lunches for Kinder to Year 10 students attending 30 government schools (15 commenced 2022, 15 commenced 2023) in areas of high socioeconomic disadvantage. The lunches were provided 1-3 days/week. The menu and recipes were designed by dietitians. This analysis aimed to describe parents’ perceptions of the School Lunch Project during the first year. Six of the 15 schools that commenced in term 2 2022 were invited, and agreed, to participate in the evaluation. During term 3 or 4 2022, parents completed online or written surveys (n = 159) and/or participated in discussion groups (n = 26) to share their thoughts on the menu, their concerns, likes, and willingness to pay. Survey data were analysed descriptively and open-ended survey responses and discussion group data thematically. During 2022, 78,832 nutritious cooked lunches were provided to 1,678 students. Most parents felt there was enough variety on the menu (66%) and the right amount of food was served (69%). Most students (79%) ate the lunches every day they were provided yet 52% of parents continued to provide a packed lunch. Parents enjoyed that their child was having a healthy lunch (66%) and trying new foods (74%). Some parents in the discussion groups indicated positive flow on effects at home with students trying new foods and sitting down together as a family to eat the evening meal. Half the parents (50%) had no concerns about the school providing lunches. The most commonly reported concerns were their child might not like the food (36%) or their child does not try new foods (8.6%). These concerns were also raised in the discussion groups. Most parents (93%) were prepared to pay for the lunches in future (median $3, range $1-$12) and 85% thought there should be a family discount. Parents acknowledged some payment was necessary for the sustainability of the program but some expressed concern for those who may struggle to pay. More direct communication with families about the meals offered, the availability of bread (from term 4 2022) for students who choose not to eat the cooked lunch or want more to eat, and allowing families time to adjust to the new lunch system, may address some of the concerns raised. Further data on parents’ perceptions of the school lunches will be collected during term 3 2023.
Household food insecurity and associations with energy, nutrient intake, and sociodemographic characteristics in young New Zealand children
- R. Jupiterwala, C. Conlon, K. Beck, R. Taylor, A-L. Heath, J. Haszard, I. Katiforis, R. Paul, K. Brown, M. Casale, E. Jones, A. Wei, L. Fangupo, B. Bruckner, V. Pulu, M. Healy, P. von Hurst
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- Journal:
- Proceedings of the Nutrition Society / Volume 83 / Issue OCE1 / April 2024
- Published online by Cambridge University Press:
- 07 May 2024, E85
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Although food insecurity affects a significant proportion of young children in New Zealand (NZ)(1), evidence of its association with dietary intake and sociodemographic characteristics in this population is lacking. This study aims to assess the household food security status of young NZ children and its association with energy and nutrient intake and sociodemographic factors. This study included 289 caregiver and child (1-3 years old) dyads from the same household in either Auckland, Wellington, or Dunedin, NZ. Household food security status was determined using a validated and NZ-specific eight-item questionnaire(2). Usual dietary intake was determined from two 24-hour food recalls, using the multiple source method(3). The prevalence of inadequate nutrient intake was assessed using the Estimated Average Requirement (EAR) cut-point method and full probability approach. Sociodemographic factors (i.e., socioeconomic status, ethnicity, caregiver education, employment status, household size and structure) were collected from questionnaires. Linear regression models were used to estimate associations with statistical significance set at p <0.05. Over 30% of participants had experienced food insecurity in the past 12 months. Of all eight indicator statements, “the variety of foods we are able to eat is limited by a lack of money,” had the highest proportion of participants responding “often” or “sometimes” (35.8%). Moderately food insecure children exhibited higher fat and saturated fat intakes, consuming 3.0 (0.2, 5.8) g/day more fat, and 2.0 (0.6, 3.5) g/day more saturated fat compared to food secure children (p<0.05). Severely food insecure children had lower g/kg/day protein intake compared to food secure children (p<0.05). In comparison to food secure children, moderately and severely food insecure children had lower fibre intake, consuming 1.6 (2.8, 0.3) g/day and 2.6 (4.0, 1.2) g/day less fibre, respectively. Severely food insecure children had the highest prevalence of inadequate calcium (7.0%) and vitamin C (9.3%) intakes, compared with food secure children [prevalence of inadequate intakes: calcium (2.3%) and vitamin C (2.8%)]. Household food insecurity was more common in those of Māori or Pacific ethnicity; living in areas of high deprivation; having a caregiver who was younger, not in paid employment, or had low educational attainment; living with ≥2 other children in the household; and living in a sole-parent household. Food insecure young NZ children consume a diet that exhibits lower nutritional quality in certain measures compared to their food-secure counterparts. Food insecurity was associated with various sociodemographic factors that are closely linked with poverty or low income. As such, there is an urgent need for poverty mitigation initiatives to safeguard vulnerable young children from the adverse consequences of food insecurity.
Adapting Intake24 for Aotearoa - New Zealand
- B. Follong, S. Mackay, C. Haliburton, J. Grey, M. Maiquez, C. Ni Mhurchu
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- Proceedings of the Nutrition Society / Volume 83 / Issue OCE1 / April 2024
- Published online by Cambridge University Press:
- 07 May 2024, E23
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National nutrition surveys play a pivotal role in shaping public health policies and programmes by providing valuable insights into dietary intake and the nutritional wellbeing of a population. A team from the University of Auckland and Massey University worked alongside the Ministry of Health and the Ministry for Primary Industries to develop the methods and tools for a future New Zealand Nutrition Survey. Throughout these developmental stages, we partnered and engaged with Māori as tangata whenua, and other key ethnic groups in Aotearoa - New Zealand, ensuring that their unique dietary practices and preferences were accurately captured. This presentation centres on the adaptation of Intake24, an innovative web-based 24-hour dietary recall tool, to optimize dietary data collection within the New Zealand context. The adaptation process involved several key steps including rationalisation of a New Zealand-specific food list, incorporating cultural dishes, adding new portion size estimation aids, and further customisation of the user interface(1). We provide new insights into the user experience and the tool’s functionality, sharing findings from field testing and valuable user feedback. This approach ensures collection of dietary data that is truly representative of the New Zealand population and acknowledges the rich diversity and dietary nuances within the country. As such, this adapted New Zealand version of Intake24 could serve as an essential tool for use in a future National Nutrition Survey or other research initiatives to collect accurate, culturally sensitive, and actionable nutrition data providing evidence to inform future public health programmes and policies.
Changes in liver health biomarkers following consumption of energy restricted diets containing almonds compared with carbohydrate-rich snack foods for 9 months
- A.M. Coates, O. Afzali, J. Childs, S. Carter, K. Lamb, M. Matheson, C. Yandell, J.D. Buckley, S-Y. Tan, G.B. Rogers, A.M. Hill
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- Journal:
- Proceedings of the Nutrition Society / Volume 83 / Issue OCE1 / April 2024
- Published online by Cambridge University Press:
- 07 May 2024, E45
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Energy restricted diets improve liver function(1) and habitual nut consumption has been associated with a lower prevalence of fatty liver(2). This study examined the effect of incorporating almonds in an energy restricted diet on liver health biomarkers. One Hundred and forty adults (42M:98F, 47.5 ± 10.8 years, BMI 30.7 ± 2.3 kg/m2) enrolled in a 9-month (9M) dietary intervention comprising 3 months (3M) weight loss (30% energy restriction) followed by 6 months (6M) of weight maintenance. Participants were randomly assigned to consume almonds (n = 68, AED) or isocaloric carbohydrate-rich snacks (n = 72, CRD) which provided 15% of total daily energy. At baseline (BL), 3M and 9M, fatty liver index (FLI) scores (0-100)(3) were calculated using body mass index (BMI), waist circumference (WC), fasting serum gamma-glutamyl transferase (GGT) and triglyceride (TAG) levels, and other liver health biomarkers were assessed by ultrasound (volume, visual appearance and elastography (a marker of stiffness due to fibrosis)). Intention to treat analyses were conducted using mixed effects modelling (fixed effects group and time, with participants as the random effect). Significant reductions from BL occurred over time (all p<0.001 for 3M and 9M) with no difference between groups (AED vs CRD, P>0.05) in BMI (3M: −2.44 ± 0.20 vs −2.32 ± 0.20, 9M: −2.83 ± 0.19 vs −2.81 ± 0.19 kg/m2), WC (3M: −8.04 ± 0.79 vs −7.00 ± 0.81, 9M: −8.72 ± 0.83 vs −9.14 ± 0.81 cm), TAG (3M: −0.24± 0.08 vs −0.22 ± 0.09, 9M: −0.37 ± 0.09 vs −0.21 ± 0.09 mmol/L), FLI score (3M: −23.8 ± 2.0 vs −17.6 ± 2.1, 9M: −23.8 ± 2.0 vs −17.6 ± 2.1), and liver volume (3M: −134.56 ± 38.30 vs −100.96 ± 37.25, 9M: −113.68 ± 37.42 vs −110.64 ± 35.47cm3). Significantly greater reductions occurred for AED compared to CRD at 3M and 9M in GGT (p = 0.003) (3M: −9.68 ± 1.93 vs −0.01 ± 2.00, 9M: −7.75 ± 2.06 vs −2.78 ± 2.15 IU/L) and liver visual assessment scores (p = 0.03) (3M: −0.58 ± 0.24 vs −0.45 ± 0.23, 9M: −1.33 ± 0.23 vs −0.50 ± 0.22). There were no significant changes in liver elastography over time or between groups. Energy restriction improved body composition and reduced the extent of fatty liver and liver size but did not change liver stiffness. The inclusion of almonds in an energy restricted diet demonstrated additional benefits to some liver health biomarkers providing support for almonds being incorporated into lifestyle interventions to improve liver function.
Food providers and public health professional’s experiences with the adoption and implementation of the National Healthy Food and Drink Policy in New Zealand healthcare facilities
- M. Rosin, S. Mackay, C. Ni Mhurchu
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- Proceedings of the Nutrition Society / Volume 83 / Issue OCE1 / April 2024
- Published online by Cambridge University Press:
- 07 May 2024, E61
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Publicly-funded healthcare facilities in Australia(1) and New Zealand(2) have adopted healthy food and drink policies to enable staff and visitors to choose and consume healthier options. However, adopting such policies does not translate to their full implementation and compliance by food providers, who face barriers to providing healthier food and drinks(3). As part of the wider HealthY Policy Evaluation (HYPE) study, we interviewed hospital food providers and public health dietitians/professionals to understand their experiences implementing the voluntary National Healthy Food and Drink Policy introduced in New Zealand in 2016. Semi-structured interviews focused on the awareness, understanding of, and attitudes towards the Policy; level of support received; perceived customer response; tools and resources needed to support implementation; and unintended or unforeseen consequences. All semi-structured interviews were transcribed verbatim, inductively coded with the assistance of QSR’s NVivo software, and analysed using the reflexive thematic analysis method by Braun and Clarke(4). Twelve participants from across New Zealand were interviewed. Time in their roles ranged from one to 14.5 years, and many were not in the position when the Policy was first adopted. There was a discrepancy in the awareness of the voluntary Policy. However, there was agreement that hospitals should be healthy eating role models for the wider community. Reflexive thematic analysis identified three themes relating to the implementation of the Policy in New Zealand: 1) complexities of operating food outlets under the Policy in hospitals; 2) adoption, implementation and monitoring of the Policy as a series of incoherent ad-hoc actions; and 3) the Policy as (currently) not achieving the desired impact. Participants recognised that the current food supply, presence of food outlets nearby hospitals serving unhealthy foods and culture of unhealthy eating, combined with the difficulty of changing people’s eating habits, leaves doubts if the Policy and healthier options served in the healthcare facilities have any tangible positive impact on staff or visitors. Key suggestions to promote successful Policy implementation included adoption of a mandatory National Policy, funding of central government support for implementation (including supportive implementation tools), regular and systematic monitoring of food availability in each region, and frequent and ongoing communication with staff and visitors using positive messaging around healthy eating and non-health related benefits (e.g. sustainability) to increase their buy-in. Findings from stakeholder interviews and the remaining parts of the HYPE evaluation study are informing the update of the National Policy and associated supportive tools, and highlight the potential positive impact a comprehensive policy evaluation could have on improving policy implementation.