Personalised nutrition (PN) has emerged as an approach to optimise individual health outcomes through more targeted and tailored dietary recommendations based on unique genetic, phenotypic, medical, lifestyle and contextual factors. The application of artificial intelligence (AI) presents an opportunity to achieve personalised nutrition advice at a scale that has population impact. This review introduces a nutrition audience to different AI applications and offers insights into the concepts of AI that might be relevant to the field of nutrition research. The current and future uses of AI in PN are discussed, as well as the potential benefits and challenges to their application. AI-driven solutions have the potential to improve health and reduce the risk of disease because they can consider more information about an individual in making recommendations. However, challenges such as data interoperability, ethical considerations, and model interpretability remain an issue limiting widespread use at this point. This review will provide a foundational understanding of the application of AI within PN and help to identify opportunities to leverage the potential of AI in transforming dietary guidance and enhancing health outcomes through innovative solutions.

The NOVA food classification system and its categorisation of ultra-processed foods (UPFs) have significantly influenced dietary guidelines worldwide, yet the assumption that all UPFs are uniformly harmful warrants critical examination. Here, a review of evidence revealed substantial heterogeneity in health outcomes across UPF subtypes, with products like sugar-sweetened beverages consistently associated with adverse outcomes while fortified cereals and certain dairy products demonstrate neutral or protective effects. The binary nature of NOVA’s classification fails to account for nutritional composition, fortification benefits, and cultural food traditions, creating inconsistencies in categorisation across different contexts. Methodological limitations in UPF research include inadequate dietary assessment tools, selective reporting of negative findings, and experimental design flaws that conflate processing with other dietary factors. Implementation challenges extend to socioeconomic accessibility, as UPFs often provide cost-effective nutrients for disadvantaged populations and environmental sustainability, where wholesale reduction could increase resource demands. Future directions should develop more nuanced classification systems that integrate processing methods with nutritional quality to better inform public health strategies rather than categorically rejecting all UPFs.

The Nordic Nutrition Recommendations 2023 (NNR2023) serve as the scientific foundation for national dietary guidelines and nutrient recommendations across the Nordic and Baltic countries. We reviewed how NNR2023 was adapted into national food-based dietary guidelines (FBDG) in the Nordic countries and Estonia, focusing specifically on sustainability considerations and policy implications. National FBDG integrated both health and environmental aspects in all countries, except Norway, which addressed environmental aspects only in a separate report. Health impacts served as the primary principle in all countries. Additionally, national policy perspectives, such as domestic food security, were addressed in some countries, while the integration of social and economic sustainability remained very limited. In adopting NNR2023, all countries modelled how implementation would affect nutrient adequacy or health within their food environments, making minor adjustments based on these findings. Guidelines for animal source food groups showed the most variation between countries; Estonia and Denmark established the strictest recommended limits for red meat and total meat, respectively, while Norway was most liberal regarding milk products. Stakeholders participated in the consultation process. The agricultural sector and meat industry primarily maintained pro-meat discourse, which was particularly intense in Norway and Sweden. Transition towards healthy and sustainable diets demands multiple policy instruments – FBDG being just one – alongside a supportive environment and participation from all food system actors.

The transition from breastmilk to solid foods (weaning) is a critical stage in infant development and plays a decisive role in the maturation of the complex microbial community inhabiting the human colon. Diet is a major factor shaping the colonic microbiota, which ferments nutrients reaching the colon unabsorbed by the host to produce a variety of microbial metabolites influencing host physiology(1). Therefore, making adequate dietary choices during weaning can positively modulate the colonic microbiota, ultimately contributing to health in infancy and later life(2). However, our understanding of how complementary foods impact the colonic microbiota of weaning infants is limited. To address this knowledge gap, we employed a metagenome-scale modelling approach to simulate the impact of complementary foods, either combined with breastmilk or with breastmilk and other foods, on the production of organic acids by colonic microbes of weaning infants(3). Complementary foods and combinations of foods with the greatest impact on the in silico microbial production of organic acids were identified. These foods and food combinations were further tested in vitro, individually or in combination with infant formula. Fifty-three food samples were digested using a protocol adapted from INFOGEST to mimic infant digestion and then fermented with faecal inoculum from 6 New Zealand infants (5-11 months old). After 24h of fermentation, the production of organic acids was measured by gas chromatography. Differences in organic acid production between samples were determined using the Tukey Honestly Significant Difference test to account for multiple comparisons. The microbial composition was characterised by amplicon sequencing of the V3-V4 regions of the 16S bacterial gene. Taxonomy was assigned using the DADA2 pipeline and the SILVA database (version 138.1). Bioinformatic and statistical analyses were conducted using the R packages phyloseq and ANCOM-BC2, with the Holm-Bonferroni adjustment to account for false discovery rates in differential abundance testing. Blackcurrant and raspberries increased the production of acetate and propionate (Tukey’s test, p<0.05) and the relative abundance of the genus Parabacteroides (Dunnett’s test, adjusted p<0.05) compared to other foods. Raspberries also increased the abundance of the genus Eubacterium (Dunnett’s test, adjusted p<0.05). When combined with infant formula, black beans stood out for increasing the production of butyrate (Tukey’s test, p<0.05) and the relative abundance of the genus Clostridium (Dunnett’s test, adjusted p<0.05). In conclusion, this study provides new evidence on how complementary foods, both individually or in combination with other dietary compounds, influence the colonic microbiota of weaning infants in vitro. Insights generated by this research can help design future clinical trials, ultimately enhancing our understanding of the relationship between human nutrition and colonic microbiota composition and function in post-weaning life.

Cardiovascular disease (CVD) is the most potent killer in Aotearoa New Zealand (NZ) with South Asians being one of the three high-risk groups. This study aimed to investigate health beliefs, knowledge, and behaviours related to diet among NZ South Asians at risk of CVD, using a mixed-methods approach. Demographics and dietary data were collected via an online Qualtrics survey and qualitative data on health beliefs and knowledge about heart-healthy foods were collected using semi-structured phone interviews. Twenty-one South Asian participants with diagnosed type 2 diabetes and/or hypertension and/or hypercholesterolemia were recruited via stakeholder engagement and advertisements through South Asian cultural and religious organisations.The majority of participants (62%) were aged 35-50 years, 10 were female, 11 were male and 67% were long-term residents of NZ. Most participants were unsure of the recommendations for fruit and vegetable consumption and only 48% and 29% met these guidelines, respectively. This is worrying as NZ Health survey data show a steady decrease in fruit and vegetable consumption among South Asians over 20 years with only 27% meeting the guidelines in 2021. (1) Sixty-two percent of participants consumed milk and yoghurt ≥ 4 times a week; 63% consumed full-fat milk and 45% consumed full-fat yoghurt regularly. These findings are consistent with that found for healthy South Asians in NZ,(2) where dairy, the primary source of saturated fats in South Asian cuisine, increased post-migration. Some participants believed that full-fat dairy increases the risk of heart disease, yet they still preferred to use full-fat milk and ghee as they believed it is healthier than low-fat varieties. Most participants believed that salty foods and pickles increase the risk of heart disease with 33% consuming salted pickles “sometimes” and only 28% choosing “low or reduced salt” food varieties “regularly/always”. More than half (57%) chose reduced-fat varieties of foods deliberately to reduce their risk of CVD. Red meat and deep-fried fatty foods were the most common foods that most participants thought they should avoid; however, some were not sure. Foods that participants considered heart-healthy were green vegetables, lentils and ghee in moderation. Most meat-consuming participants were unaware of healthy cuts of meat with only 38% reporting always choosing low-fat cuts of meat. Most participants believed that they could take some measures to reduce their risk of heart disease. Nevertheless, their health beliefs were not consistent with knowledge of or behaviours concerning heart-healthy measures. Substantial knowledge gaps evident in the reported dietary behaviours need to be addressed to reduce the risk of CVD among at-risk South Asians.

Type 2 diabetes mellitus (T2DM) is a major disease worldwide, causing significant mortality and morbidity. Currently, in Aotearoa, New Zealand, there is a high prevalence of T2DM, with a disproportionate impact on Māori and Pacific populations(1). Moreover, it has been predicted that the prevalence will continually increase. Research has shown that insulin resistance (IR) has been reported to play a critical role in the development of T2DM and other related cardiometabolic diseases(2). Therefore, managing IR is crucial to reducing the development of T2DM. Notably, bioactive compounds in various diets are known to modify the risk of T2DM by regulating IR. Among such dietary compounds include kawakawa (Piper excelsum), an indigenous species used by Māori in traditional medicine (Rongoā). Kawakawa is shown to contain several bioactive compounds that are shown to have insulin-sensitising effects. Research by our group has recently shown kawakawa to have potential anti-diabetic and anti-inflammatory effects in healthy human volunteers(3,4). However, how Kawakawa exerts these effects on insulin signalling and glucose uptake remains unknown. We hypothesise that kawakawa will enhance the glucose uptake in the treated cells and will differentially regulate key genes involved in insulin signalling pathways, including GLUT2, IRS-1, PPAR-γ, and PI3K/Akt, across various tissues. To test our hypothesis, we aim to investigate the mechanistic action of kawakawa extract on insulin signalling pathways in different cell models from metabolically active organs. We will use the same kawakawa powder sample shown to improve postprandial insulin in a healthy population. Cell models representing different insulin-responsive organs: liver (HepG2), skeletal muscle (L6-GLUT4myc), pancreas (MIN6), and adipose (3T3-L1) will be used. The cells will be treated with different doses of kawakawa extract, and glucose uptake will be measured. Key signalling pathways, including GLUT2, IRS-1, PPAR-γ, and PI3K/Akt, will be monitored using western blot and quantitative polymerase chain reaction (qPCR) analysis. The findings of this study have the potential to identify key targets of kawakawa action on insulin signalling in metabolically active organs. These outcomes will inform future research with kawakawa in clinical settings in people with cardiometabolic diseases such as T2DM and can form the basis for developing a dietary intervention for individuals at risk of these diseases. Additionally, Rongoā is an acceptable intervention by Māori, integrating this knowledge with evidence-based scientific interventions would aid in creating a holistic health paradigm that resonates within Māori communities.

In the New Zealand diet, most sodium intake originates from salt added during food processing by manufacturers and in restaurant preparations(1,2). Dietary intervention may be an effective approach to reducing individuals’ sodium intake. This study investigated whether the provision of foods high in fibre or healthy fats, inadvertently effect sodium and potassium intakes. A total of 297 individuals (mean age 64 ± 10 years, n=96 females) who had a coronary event in the previous six months participated in this study. Participants were randomly allocated into one of three groups for 12 weeks: weekly delivery of foods high in healthy fats, weekly delivery of foods high in dietary fibre; and a control group that didn’t receive any groceries. All participants received basic healthy eating advice. Sodium and potassium intakes were assessed at baseline, the end of the 12-week intervention, and after a further 12 week follow up using four-day food records. Participants chose to complete these records either on paper or using the Research Food Diary application on their phone (Xyris Software Ltd., Brisbane, Australia). Food records were analysed using FoodWorks dietary analysis software (Version 10, Xyris Software Ltd., Brisbane, Australia). The mean sodium and potassium intakes recorded over the four days were used to represent participants’ intakes at each time point. Compared to the control group, sodium intake at the end of the 12-week intervention were modestly lower in both food-delivery intervention groups (-109 mg (95% CI: - 344, 125) in the healthy fats group and -175 mg (95% CI: -412, 63) in the high fibre group. Potassium intakes at 12 weeks were 284 mg higher in the high fibre group (95% CI: 4, 564), while the difference was more modest in the healthy fats group (72 mg (95% CI: -207, 350)). At the end of the 12 week follow- up, the mean sodium intake in the high fibre group was 254 mg (95% CI: -514, 7) lower than the control, whereas there was only a very small difference in the healthy fats group at -37 mg (95% CI: -300, 266). Differences in potassium intake at 24 weeks were modest for both groups (66 mg; 95% CI: -241, 374) in the healthy fats group and -53 mg (95% CI: -356, 251) in the high fibre group). The provision of healthy foods, particularly foods high in fibre, may be an effective strategy to reduce sodium and increase potassium intakes in high-risk populations.

Gymnema lactiferum (G. lactiferum) is a medicinal plant that has played a significant role in traditional medical systems(1). This plant has been used in Ayurveda, Siddha, and Unani medicinal practices to address various health conditions, including diabetes, rheumatoid arthritis, as a diuretic agent, and for digestive disorders. However, there are few scientific studies on its nutritional value and bioactive compounds. Additionally, no prior study has endeavoured to introduce this plant’s extracts into food and beverages. Accordingly, the objectives of this study were to extract bioactive compounds from G. lactiferum using different extraction methods and to analyse its nutritional value and bioactivity. G. lactiferum leaf powder was extracted using different techniques and quantified for mineral and proximate composition, as well as phenolic, flavonoid, and antioxidant properties. Accelerated solvent extraction (ASE), water bath extraction (WB), and ultrasonication (US) techniques were used with 100% water extract (WE) and 50% aqueous ethanol extract (EE) as extracting solvents. Total phenolic content (TPC), total flavonoid content (TFC), and total antioxidant capacity (TAC) using 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activity(2) were measured. Statistical analysis was carried out using one-way analysis of variance (ANOVA), followed by Tukey’s test for post hoc comparison analyses. The composition included carbohydrates (19.3%), crude protein (17.5%), dietary fibre (35.1%), and fat content (4.8%). The mineral profile included potassium (4200 mg/100g), calcium (950 mg/100g), phosphorus (240 mg/100g), magnesium (240 mg/100g), iron, zinc, copper, and chromium. The extracts yielding the highest TPC (11.12 ± 0.32 mg gallic acid equivalents/g), TFC (4.73 ± 0.22 mg quercetin equivalents/g), and TAC (791.00 ± 18.9 mg ascorbic acid equivalents/mg) values were for WB-WE, ASE-EE, and WB-EE, respectively. The results indicate that water extracts in all three methods exhibited pronounced efficacy in the extraction of phenolic compounds. All 50% ethanol extracts demonstrated heightened efficiency in the extraction of flavonoids from G. lactiferum leaf powder. Furthermore, ethanol extracts exhibited higher antioxidant activity compared to the water extracts across all extraction methods. The results of this study show that G. lactiferum is a significant source of various nutritional compounds, such as crude protein, dietary fibre, and potassium-like minerals, as well as bioactive compounds. The phenolic, flavonoid, and antioxidant characteristics varied greatly depending on the extraction method and solvent used. These results provide a better understanding of the possible uses of G. lactiferum in the development of functional food.

Sustainability in Aotearoa New Zealand’s food system is essential for environmental health (taiao ora) and human well-being (tangata ora). However, achieving resilience in our food system faces significant cross-sector challenges, requiring a national food strategy that addresses environmental, economic, and social pressures(1). This work aims to develop the first national computational model of Aotearoa New Zealand’s food system, integrating key factors into a decision support tool. The model aims to support food system resilience by offering an accessible platform that could help inform decisions to strengthen preparedness for shocks, while also providing insights to enhance everyday food security. The Kai Anamata mō Aotearoa (KAMA) model leverages new data and indigenous crop trials to combine work across agriculture, environment, and human wellbeing, forming a comprehensive tool to examine food system resilience. This model will capture the resources required, outputs produced, and wellbeing outcomes of our food system. The KAMA model was built using a flow-state modelling approach, which allows for flexible configuration of land uses and ensures that the model can adapt to future technologies and climate change scenarios. The preliminary development the KAMA model was used to demonstrate the current production system and applied to a regional case study from Te Tauihu, integrating region-specific food production data, including apples, kiwifruit, mussels, wine, and hops production. Outputs included labour, carbon dioxide emissions and mass of production. Beyond food production, this model will enable users to explore the impacts of land use for commodity production, the effects of trade, nutrient supply, and the broader implications for well-being. model will be made publicly accessible online to allow any interested individual to explore the future of the national food system.

Cardiovascular diseases (CVD) are the leading cause of mortality worldwide, with impaired lipids levels being a significant risk factor (1). This meta-analysis provides comprehensive insights on the impact of bovine dairy-derived milk fat globule membrane (MFGM) supplementation on blood lipid profiles in adults. A systematic search was conducted across various databases (including PubMed, Scopus, Web of Science, the Cochrane Library, Google Scholar, ACS Publications, Academic Search Index, BMJ Journals, BNP Media, and others) up until March 2024, resulting in the inclusion of six trials with a total of 464 participants. The findings indicate that MFGM phospholipid supplementation may significantly reduce total cholesterol (TC) and low-density lipoprotein (LDL) cholesterol levels. A combined analysis of the effects on TC, LDL and triglycerides (TG) revealed a significant overall reduction in these markers (SMDs = −0.174; 95% CI: −0.328~−0.021; p = 0.026; I2 = 0%). However, no significant increase or reduction was observed for high-density lipoprotein (HDL) (SMDs = 0.019; 95% CI: −0.289~0.326; p = 0.906; I2 = 95.5%) and TG levels (SMDs = −0.083; 95% CI: −0.198~0.033; p = 0.160; I2 = 0%). Overall, these results suggest that MFGM supplementation could be a promising dietary intervention for improving lipid profiles in adults. Nonetheless, further research is warranted to confirm these results and to better understand the potential variability in the impact of MFGM on blood lipid levels.

Optimal early childhood nutrition is central to healthy growth, wellbeing and development. The World Health Organisation (WHO) Regional Office for Europe Nutrient and Promotion Profile Model (NPPM)(1) recommends that commercial infant and toddler foods do not carry compositional, nutrition, health or marketing claims. The Food Regulation Standing Committee of Australia and New Zealand (NZ) has identified labelling of these foods as a current area of concern(2). This study aims to identify on-pack labelling and marketing claims on commercial packaged foods aimed at infants and toddlers in NZ. Relevant infant and toddler products available in NZ supermarkets were identified through Nutritrack(3), a packaged food database managed by the University of Auckland. Information was collected from four major NZ supermarket chains in Auckland. Photographs of packaged foods and beverages were taken and names, brands, labelling, ingredients and NIP information identified. Data were collected between April and July 2023. In January 2024, online supermarket websites were checked for additional products. Infant products were those intended for ages up to 11 months as indicated on the package, and toddler products for ages 12 months to 36 months. Claims on each side of the package were coded using a pre-existing coding structure according to the three main categories identified in the WHO NPPM, composition and nutrition claims, health claims, and marketing claims, The absence or presence of the type of claim was noted. Descriptive statistics were conducted using Microsoft Excel to analyse frequency of types of claims. Two hundred and ten products were identified, 167 infant and 43 toddler products. All products had some type of claim on the package. On average, there were 7 unique types of claims per product (range 3-14) for both infant and toddler foods. The most common type of claims were composition and nutrition claims, with a mean of 4.0 types per product, followed by 3.3 types of marketing claims and 0.16 health claims. The most prevalent composition and nutrition claims were ‘free from’ claims relating to the absence of ingredients generally perceived to be harmful, most commonly flavours (on 72% of packages), colours (71%), added sugar (53%), preservatives (43%) and salt (33%). Two-thirds of packages (68%) carried statements on the natural or healthy nature of the ingredients mentioning words like organic/fresh/real or natural on-pack. All infant and toddler products carried some type of claim with the most common being about the composition or nutrition of the product, particularly the absence of additives, sugar and salt. Regulation is needed to ensure that parents and caregivers receive accurate information, preventing them from being misled when making purchasing decisions for their children.

Nourishing kai supports behaviour and concentration, tamariki learn well when food secure and eat regularly(1). Early food experiences influence our relationship with food as adults(2) and that tamariki health and wellbeing are shaped by education environments(3). WAVE (Well-being and Vitality in Education) has enduring partnerships with all preschools, kindergartens, playcentres, primary and secondary schools in our South Canterbury rohe(3), supporting healthy education environments with the goal of reducing inequities in health and education outcomes. Despite concerns about food security and processed foods, health promotion advisors note kaiako reluctance to promote nutrition using a whole-setting approach. The whole school approach(4) includes policies and procedures for kai (food) and wai (water), nutrition education within teaching and learning and nutrition messages promoted to whānau through enrolment information, learning stories/newsletters and displays, and in conversations with whānau. We describe an increase in kaiako acceptability occurring with the move from discussing nutrition as ‘healthy eating’ to using language of ‘supporting positive kai environments’. We include examples of mahi that the education settings put in place in this process. Between October 2023 and June 2024, WAVE provided internal professional development for health promotion kaimahi, focusing on supporting positive kai environments. Resources were redeveloped to align with messages about fostering positive relationships with kai and encouraging tamariki to be food explorers(5). The updated approach was widely communicated through newsletters and meetings with kaiako, alongside sharing relevant webinar and article resources from the Education Hub and Heart Foundation to support kaiako professional development. Health promotion advisors working with early childhood education and primary schools discussed nutrition within the broader context of positive kai and wai environments, aiming to develop positive relationships with food. These discussions took place through a combination of one-on-one meetings with lead kaiako each term and staff team meetings. Interview questions were sent to priority education (n=10) settings in September 2024 to gather feedback on barriers to promoting nutrition, how the change to ‘positive kai and supporting kai explorers’ has made a difference, and to hear the settings’ plans for current and future action in their setting. Responses from 8 ECE indicated that WAVE PD workshops using Heart Foundation resources were the resources they found most useful in enabling them to support tamariki as kai explorers. The shift to ‘positive kai environments’ has given kaiako consistent positive language around food, created space for tamariki to be self-directing with food, and has been mana-enhancing for tamariki and whānau. Kaiako stated that this evidence-based approach has taken the pressure off food, and kaiako are more responsive to tamariki needs. Kaiako are more willing to approach nutrition messages in a holistic manner to support tamariki.

Irritable bowel syndrome (IBS) is a chronic and painful gastrointestinal disorder associated with significantly worse physical functioning (abnormal physiology, visceral hypersensitivity, inflammation, immune dysregulation, microbiome, and malabsorption issues). IBS isinfluenced by genetic disposition, psychological factors and diet, significantly and adversely affects quality of life(1). Internationally IBS is a common disorder in primary and speciality care affecting 13 to 20% of people(2). IBS imposes a significant economic burden to health systems(2). The prevalence and economic results of IBS make it a major public health concern. Existing interventions revolve separately around diet (particularly the low FODMAP diet) and stress management. The goal of this project was to create a multimodal lifestyle intervention explicitly designed to enhance the health-related quality of life in women treated for IBS in Aotearoa with the imperative to minimise the risk of IBS recurrence and to reduce the burden of the long-term physical and psychological symptoms. This IBS programme builds on the well-established Women’s Wellness Programs (WWP) based at the Health Faculty, University of Technology, Sydney. These are robust and systematic programmes developed within the WWP team which comprises international experts in women’s health and chronic conditions, of cancer, diabetes, cardiovascular disease and stroke. All WWP employ individually tailored strategies to instil positive behavioural change. They are also designed for virtual delivery through participants’ mobile computing devices to ensure regional and rural access. This presentation explains the ‘The Aotearoa Women’s Wellness Program for IBS’ prototype that has been developed. This programme is designed based on the results of a study where IBS participants (n=15) and separately health professionals or researchers (n=15) working in the field of IBS in New Zealand were all asked the same questions about the IBS journey, including diagnosis and treatment. Their responses detailed how IBS adversely affected all aspects of quality of life, raised issues with diagnosis and treatment and articulated desired support approaches. When given information about the WWP and asked to provide feedback on it, all 30 interviewed participants agreed that a WWP health promotion approach for IBS was feasible, relevant, and warranted. Through this feedback the programme was developed. Participants work through the content to address issues such as nutrition, stress management, and physical activity, guided by a health professional with expertise in gut health. Various activities and opportunities to reflect are distributed throughout the programme to identify goals to help participants make and embed appropriate changes in their lifestyles. This new, evidence-based programme for IBS is now available to health professionals working in clinical situations related to gut health in Aotearoa. It gives them the opportunity to redesign care, irrespective of where care is delivered, in a way that is responsive to the needs of people with IBS.

The Nova classification(1) categorises foods according to the degree of food processing. Ultra-processed food have undergone a high level of industrial processing and typically contain cosmetic additives(1). Increased consumption of ultra-processed food has been associated with adverse health outcomes, including obesity and chronic diseases(2). Evaluating household food acquisition according to the Nova classification allows the assessment of dietary quality within populations, a strategy of nutrition surveillance that can support the development of effective public health actions to improve dietary quality. In Aotearoa New Zealand (NZ), there is limited up-to-date information on population dietary habits and a lack of data on ultra-processed food consumption. This study aimed to: i) develop a methodology to classify food items purchased by NZ households according to the Nova food groups: unprocessed/minimally processed foods (Group 1 [G1]), processed culinary ingredients (Group 2 [G2]), processed foods (Group 3 [G3]), and ultra-processed foods (Group 4 [G4]) and; ii) to describe the proportions of unique food items purchased according to Nova. We obtained data on food items purchased by NZ households from the 2019 NielsenIQ Homescan® panel, a national dataset of approximately 2,000 households who recorded their grocery purchases over 1-year. In total, 28,824 unique items were purchased. Using barcodes, we merged the products with the 2019 Nutritrack dataset, an inventory of NZ supermarkets foods(2), to obtain the products’ ingredient lists. We followed best practices for classification according to Nova(3). Where available, the ingredient lists were used to classify products. Of the total unique products, 13,263 (46%) were matched to Nutritrack and classified based on their ingredient lists. For the remaining 15,561 products (54%), we identified whole Nielsen product categories (PC) that were exclusively associated with a single Nova group. Items classified by PC level included rice, fresh fruits, eggs and coffee beans in G1; baking powder, liquid cooking oils and salt in G2; beer and wine in G3; and margarine, carbonated soft drinks and bubble gum in G4. An additional 6,398 products were identified at this stage, representing 41.1% of the total 15,561 products without ingredient lists. We classified the remaining 9,163 items (58.9% of those 15,561 without ingredient list) based on the distribution of Nova groups for the 60% most purchased items within their PC. If the ingredient list was absent for any item under the 60% most purchased group, it was obtained from a search of online supermarkets. The final unweighted distribution of unique products purchased in NZ according to the Nova classification were 5583 (21.7%) in G1, 671 (2.6%) in G2, 3043 (11.8%) in G3, and 16466 (63.9%) in G4. Further stages of the research will estimate the energy from Nova groups derived from household food purchases in NZ, examining socioeconomic distribution and temporal trends.

Ceylon cinnamon (Cinnamomum zeylanicum), a native spice of Sri Lanka, is rich in bioactive compounds known for their potent antioxidant properties, which contribute to various health benefits such as anti-diabetic, anti-cancer, lipid-lowering and anti-inflammatory effects(1). However, the concentration of these bioactives can fluctuate throughout the plant’s life due to internal and external factors such as light, temperature, and stress responses. This study aimed to investigate the changes in total phenolic content (TPC), total flavonoid content (TFC), and the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity at different stages of maturity (1st to 4th year), using two extraction methods: ultrasonic extraction and accelerated solvent extraction. The identification and quantification of key bioactive compounds, including cinnamaldehyde, eugenol, and cinnamic acid, were performed using high-performance liquid chromatography (HPLC). The accelerated solvent extraction proved to be more effective in extracting TPC, TFC, cinnamaldehyde, eugenol and inhibiting DPPH. The extracts obtained from the accelerated solvent extractor showed a notable decrease in TPC (from 55.89±4.28 to 14.12±0.75 mg/g gallic acid equivalent) and TFC (from 170.08±13.75 to 39.35±9.39 mg/100g quercetin equivalent) up to the 3rd year, followed by an increase in TPC (from 14.12±0.75 to 19.71±0.49 mg/g gallic acid equivalent) and TFC (from 39.35±9.39 to 68.82±9.44 mg/100g quercetin equivalent) thereafter. The highest and lowest DPPH inhibition of 85.30 ± 0.39% and 40.68 ± 1.08% was observed with the 1st year and 3rd year plants. There was no significant difference between the DPPH inhibition of the 2nd and 4th year plants (p>0.05). The highest yields of eugenol (18.2485±0.02 mg/g of dry weight) and cinnamaldehyde (22.1475±0.024 mg/g of dry weight) were observed in the 3rd-year plant extracts obtained via accelerated solvent extraction. Conversely, the highest yield of cinnamic acid (0.4161±0.00 mg/g of dry weight) was found in 4th-year plants extracted using ultrasonic extraction. A statistically significant correlation was observed between cinnamaldehyde and eugenol content (p<0.05, R²=0.992), TPC and cinnamic acid (p<0.05, R²=0.906), and TFC and cinnamic acid (p<0.05, R²=0.956) across all ages. This study offers valuable insights into the variation of essential bioactive compounds in cinnamon as the plant matures, facilitating the optimization of its applications.

Malnutrition is a significant issue among older New Zealanders, with 24% malnourished and 35% at high risk(1). Oral nutritional supplements (ONS) are prescribed to improve nutrient intake in malnourished or at-risk individuals. Evidence supports that ONS can enhance energy and protein intake(2). However, efficacy depends on regular and adequate consumption. Fonterra Research and Development Centre sponsored a research programme of three interventions with the aim of assessing the liking, absorption, and compliance of ONS formulations (containing functional proteins at 9.6% and 14.4% w/v protein) versus commercial comparators. A feasibility study was also done to assess whether ONS could be used to fortify foods in a residential care setting. All trials received ethics approval. In study one (trial registration: NCT04397146), the palatability and satiating effects were evaluated in 104 participants. Fonterra’s 14.4% protein ONS was well-received for sweetness, creaminess, and texture, while the 9.6% protein ONS had lower palatability. Satiety levels were similar across all products. Key drivers of overall liking included smooth texture, pleasant taste, and ease of drinking. In study two (ACTRN12621000127808), a randomized, double-blind crossover trial of 18 healthy adults, the post-prandial effects of Fonterra’s formulation compared to energy and protein matched commercial products on amino acid (AA) appearance and gastric emptying were examined. Fonterra’s 14.4% protein ONS significantly increased the incremental area under the curve and peak concentration of essential and branched-chain AA, including leucine, compared to control (p<0.05). These findings suggest potential benefits for muscle mass preservation in at-risk patients. In study three (ACTRN12622000842763), a randomized, single-blind crossover trial, 100 older adults completed compliance and tolerance assessments of Fonterra’s formulation compared to energy and 9.6% protein matched commercial product. Compliance for all three ONS was high, with mean compliance rates of 96.1% for Fonterra 9.6%, 94.5% for Fonterra 14%, and 95.2% for comparator. Palatability scores were not significantly different. Adverse events were minimal and short-lived, mainly occurring on the first day; 30-50% of participants reported tolerance issues, such as flatulence, bloating, and burping, regardless of the product. No significant differences in satiety were observed between the interventions. Lastly, a pilot study assessed the feasibility of incorporating ONS into foods in a residential care setting. The chef found the ONS easy to work with and add to desserts, which subsequently increased the protein and calcium content of main meals. Residents found the fortified desserts palatable and acceptable. This research programme supports the use of ONS assisting older adults to meet their nutrient requirements and demonstrates that formulations containing Fonterra’s functional proteins are well-accepted, effective in increasing amino acid appearance, and easily incorporated into institutional diets, with high consumption compliance and minimal adverse effects.

Globally, food waste from school lunch programmes varies considerably, ranging from 33 to 116 g/student/day, with vegetables the most wasted food category(2). In New Zealand, the Ka Ora Ka Ako school lunch programme provides free healthy lunches to schools whose communities face greater socio-economic barriers. The programme has been criticised with claims that large quantities of food is wasted, although there is no available data available to support these comments. The aim of this study was to measure the quantity and destinations of food waste from the Ka Ora, Ka Ako school lunch programme in Dunedin schools. A total of eight primary schools in Dunedin participated. At each school, data was collected over four days: the first day was an observation day and on the remaining three consecutive days food waste was measured. Equipment (e.g., measuring scales, buckets and containers) was used for direct weighing and to carry out the waste composition analysis (i.e., manually sorting waste by type). Data was recorded and analysed using Microsoft Excel software. School rolls ranged from 17 to 353 students. Across the seven schools, the total amount of food waste from leftovers was 5274 g/day, with a mean of 32 g/student/day. Destinations of food waste from leftovers varied, ranging from returning to the supplier to being disposed in school rubbish bins (to landfill). Using the Target, Measure, Act approach recommended for food waste, the ‘Target’ is to halve per capita global food waste at the retail and consumer levels by 2030(2). This study contributes to the second step, which is to ‘Measure’ food waste. The findings from this study may be used for the third step, ‘Act’, to reduce food waste from the Ka Ora, Ka Ako school lunch programme, diverting this from landfill.

Malnutrition from poor diet is a persistent issue in Sri Lanka, especially among women and children. High rates of undernutrition and micronutrient deficiencies are documented among rural poor communities(1). Household food production may enhance maternal and child nutrition directly by increasing access to diverse foods and indirectly by providing income to diversify diets(2). This study explores the cross-sectional relationship between household food production and individual dietary diversity among women aged 18-45 years and children aged 2-5 years in Batticaloa district, Sri Lanka. We randomly selected 450 low-income mother-child pairs receiving a Samurdhi subsidiary, having a home garden. Through face-to-face interview, we gathered information on the types of crops grown and livestock reared in the preceding 12 months. Production quantity and utilization were also detailed. Additionally, socio-demographic information and market access were obtained. To measure women’s dietary diversity (DD), we used a scale based on 10-food groups and a 7-food group scale for children. Women who consumed five or more food groups were defined as meeting the Minimum Dietary Diversity of Women (MDD-W), whereas children who consumed of four or more food groups met the minimum standards. Multiple linear regression and binary logistic regression were used to identify the factors predicting individual DD. Complete data for 411 pairs were analysed. The results showed, only 15.3% of the women met MDD-W, with a mean DDS of 3.3 (SD = 1.2). Children had a mean DDS of 3.3 (SD = 1.2), and 41.1% of them met the minimum diversity. Regression analysis indicated that growing leafy vegetables was positively associated with increased dietary diversity of women (β = 0.337; 95% CI: 0.13, 0.54; p = 0.001) and children (β = 0.234; 95% CI: 0.05, 0.42; p = 0.013) but not with meeting the minimum diversity. Moreover, monthly income above 35,000 LKR, higher education level, a secondary income source andfood security were also positively associated with women’s DD. Conversely, living further away from the main road reduced the women’s DD. Interestingly, livestock ownership was only associated with women meeting the MDD-W, but not for children. For children, monthly income was a strong predictor of DD and meeting minimum diversity. Surprisingly, living far from the market was associated with increased DD in children (β = 0.018; 95% CI: 0.01, 0.03; p = 0.013), while distance to main road had a similar effect as in women. Notably, selling their produce at the market contributed to meeting the minimum dietary diversity in children (β = 0.573; 95% CI: 0.14, 1.02; p = 0.013). These findings suggest that enhancing household food production could play a crucial role in improving dietary diversity and addressing malnutrition, particularly in rural Sri Lankan communities, and potentially in other similar settings.

Natural disasters, exacerbated by climate change, pose significant threats worldwide. Each year, there are hundreds natural disasters (emergencies) globally that cripple economics, destroy crops, and shift millions. Immediately after a natural disaster, preliminary aid is food, water, sanitation, and shelter(1). New Zealand typically faces natural disaster risks such as earthquakes, floods, tsunamis, and even volcanoes to consider. According to the World Health Organisation (WHO) guidelines, ‘food supply should be adequate to cover the overall nutritional needs of all population groups in terms of quantity, quality, and safety. In an emergency, an adequate food ration meets the population’s minimum energy, protein and fat requirement for survival and light physical activity. An adequate food ration is also nutritionally balanced, diversified, culturally acceptable, fit for human consumption and suitable for all sub-groups of the population’(2,3). In the initial research, we could not find any market available emergency food that is based on nutrient-rich milk powder. In addition, though emergency food is called survival food, the taste and nutritional profile could be improved. The aim of the study was to develop prototypes that meet the criteria of the WHO guidelines for food and nutrition in emergencies, taste acceptable and cost effective, have good nutrient profiling score and 10+ years shelf-life; in partnership with GMP Dairy Ltd. Using mainly New Zealand ingredients (e.g. oatmeal, cornflour maize, cranberries) including milk powder (whole- and skim- milk powder content was approximately 27%), formulas were computed with different combination and composition with potential ingredients. Nutritional analysis was conducted referring to the Concise New Zealand Food Composition Tables to ensure essential nutrient provision in the formulas. Three powder-form prototypes were developed based on the WHO guidelines in terms of energy, protein, fat, and vitamins. The bench trials were conducted to check the uniformity when adding water, and the taste acceptability. Of each prototype (oatmeal-wheat, chickpea-wheat, chickpea-maize), energy intake was 2124 kcal, 2118 kcal, 2103 kcal per person/day; in which energy from protein (in g and in % kcal) was (61g, 11.5%), (63g, 12%), (62.9g, 12%); energy from fat (in g and in % kcal) was (41g, 17%), (40g, 17%), (39g, 17%); respectively. Vitamins were added to the formulas (VA: VB1: VB2: VB3: VC: VD ≈ 500μg: 0.9mg: 1.4mg: 12mg: 28mg: 3.8μg). The prototypes were acceptable in taste and had a nutritional health star rating of 3.5 (on a scale of 0.5 to 5). The further work is a refinement of the ration to meet specific considerations for vulnerable persons, and handling large-scale production, packaging for 10+ years shelf-life, and distribution of emergency food products. The successful outcomes of the research will have considerable potential in production. It is beneficial for the population.

Micronutrient deficiencies (MND) are a significant global health issue, particularly affecting children’s growth and cognitive potential and predisposing to adverse health outcomes for women of reproductive age (WRA).(1) Over half of global MND cases occur in Sub-Saharan Africa (SSA), with 80% of women estimated to be deficient in at least one of three micronutrients(2). Large-scale food fortification is a cost-effective strategy recommended for combatting widespread MND and has been effectively implemented in many developed countries(3). In developing countries such as SSA, socio-economic barriers and a fragmented food processing industry hinders effective implementation of food fortification(4). As a result, countries with fortification programmes face significant challenges, including low coverage of fortified food in the population and poor compliance with fortification standards by food producers(5) The contribution of food fortification to nutrient intakes of WRA in SSA have yet to be fully assessed. This study sought to evaluate mandatory food fortification programmes in SSA and estimate the contribution of fortified food consumption to micronutrient intakes and requirements of WRA. We utilised multi-national fortification data from the global fortification data exchange, which includes data on country fortification standards and the estimated level of compliance to fortification requirements. Data on the supply and consumption of fortifiable food was also included from the FAO. We calculated the potential nutrient intake from fortified food consumption for each nutrient using country fortification standards and food availability. We adjusted the estimated intake for each nutrient by multiplying with the estimated compliance percentage. We also assessed what proportion of women’s requirements for essential micronutrients, folate, iron, iodine, vitamin A, and zinc, are met through fortified food consumption using RNI values from WHO/FAO for WRA. Between 2019 and 2021, we estimated that mandatory fortification of wheat and maize flour, oil and salt in SSA contributes a median of 138µgDFE of folic acid, 217µg of iodine, 43µg RAE of vitamin A and 2.1mg and 2.0mg of iron and zinc respectively to the intakes of WRA daily. These intakes represent 12.8% (0.0-49.2) of iron, 27.5% (0.0-83.2) of zinc, 55.0% (0.0-245.0) of folate, 8.8% (0.0-37.2) of vitamin A and 228.2% (98.2-358.6) of iodine requirements respectively, taking into consideration the lower bioavailability of iron and zinc from cereal-based diets of SSA populations. In reality, compliance with fortification requirements in SSA is low, estimated at a median of 22% (0.0 - 83.4) for maize flour, 44% (0.0 - 72.0) for vegetable oil and 83% (0.0 - 100.0) for wheat flour fortification and is a major factor limiting the overall contribution of fortification to micronutrient intakes. Inadequate regulatory monitoring to ensure compliance with fortification requirements in SSA have resulted in lower-quality fortified foods, limiting women’s potential to achieve adequate micronutrient intake through fortified food consumption.