Major Food Groups Research Articles

Associations of various healthy dietary patterns with biological age acceleration and the mediating role of gut microbiota: results from the China Multi-Ethnic Cohort study.

To investigate the associations between dietary patterns and biological aging, identify the most recommended dietary pattern for coping with biological aging and explore the potential mediating role of gut microbiota in less-developed ethnic minority regions (LEMRs). This prospective cohort study included 8288 participants aged 30-79 years from the China Multi-Ethnic Cohort study (CMEC). Anthropometric measurements and clinical biomarkers were utilized to construct biological age based on Klemera and Doubal's method (KDM-BA) and KDM-BA acceleration (KDM-AA). Dietary information was obtained through the baseline food frequency questionnaire (FFQ). Six dietary patterns were constructed: plant-based diet index (PDI), healthful plant-based diet index (hPDI), unhealthful plant-based diet index (uPDI), healthy diet score (HDS), Dietary Approaches to Stop Hypertension (DASH), and alternative Mediterranean diets (aMED). Follow-up adjusted for baseline analysis were employed to assess the associations between dietary patterns and KDM-AA. Additionally, quantile G-computation was utilized to evaluate the significant beneficial and harmful food groups. In the subsample of 764 participants with gut microbiota data obtained through 16S rRNA gene sequencing, we used causal mediation model to explore the mediating role of gut microbiota in the associations between dietary patterns and KDM-AA. The results showed that all dietary patterns were associated with KDM-AA. Transitioning from non-compliance to compliance, DASH exhibited the strongest negative association with KDM-AA [β = -0.91, 95%CI (-1.19, -0.63)]. The component analyses revealed that tea and soybean products were the significant beneficial food groups, while salt, preserved vegetables, red and processed meats were identified as the major harmful food groups. In mediation analysis, the decreased abundance of Synergistetes phylum and Pyramidobacter genus possibly mediated the negative associations between plant-based diets and KDM-AA (5.61%-9.19%). Overall, healthy dietary patterns, especially DASH, are negatively associated with biological aging in LEMRs. The Synergistetes and Pyramidobacter may mediate the associations between plant-based diets and biological aging. Developing appropriate strategies may promote healthy aging in LEMRs.

Mediterranean Diet: its Nutritional Composition and Health Benefits in Chronic Disease Prevention

The Mediterranean diet (MD), as a scientifically proven healthy eating pattern, originated in the Mediterranean region and is gradually respected globally. In recent years, a large number of studies have confirmed its remarkable effect in the prevention and management of chronic diseases. However, there is still a certain research gap in the specific nutritional composition of the MD and its comprehensive understanding of health. Additionally, the widespread adoption of the MD faces challenges, including cultural differences and the adaptation of dietary habits. This article reviews the analysis of the major food groups and nutrients in the MD, exploring its health benefits in cardiovascular disease (CVD) prevention, management of type 2 diabetes and obesity, as well as cancer prevention. Through comprehensive existing research, this article reveals the scientific evidence of the MD to benefit health. The results of the research provide a scientific basis for promoting the MD, and provide direction for further studying the mechanism of the MD prevention disease in the future.

Unhealthy plant-based diet is associated with a higher cardiovascular disease risk in patients with prediabetes and diabetes: a large-scale population-based study

BackgroundThe role of plant-based dietary patterns in preventing cardiovascular disease (CVD) among individuals with prediabetes and diabetes remains unclear. We aimed to evaluate the associations of plant-based diet index (PDI), healthful PDI (hPDI), and unhealthful PDI (uPDI) with cardiovascular disease (CVD) risk and explore potential contributing factors among people with prediabetes and diabetes.MethodsA total of 17,926 participants with prediabetes and 7798 with diabetes were enrolled from the UK Biobank between 2006 and 2010 and followed until the end of 2020. We calculated the PDI, hPDI, and uPDI based on 18 major food groups including plant-based foods and animal-based foods and applied Cox proportional hazard models to calculate hazard ratios (HRs) and 95% confidence intervals (CIs) for CVD risk related to PDI, hPDI, and uPDI. Decomposition analysis was performed to assess the role of dietary components, and mediation analysis was performed to assess the potential mediating role of serum biomarkers underlying these associations.ResultsA total of 2324 CVD events were documented among individuals with prediabetes, while 1461 events occurred among patients with diabetes. An inverse association was found between hPDI and CVD risk among individuals with prediabetes (HR T3 vs. T1 = 0.88, 95% CI = 0.79–0.98, Ptrend = 0.025) but not those with diabetes. A positive association was found between uPDI and CVD risk among individuals with prediabetes (HR T3 vs. T1 = 1.17, 95% CI = 1.05–1.30, Ptrend = 0.005) and those with diabetes (HR T3 vs. T1 = 1.14, 95% CI = 1.00–1.29, Ptrend = 0.043). High-sugar-sweetened beverages (SSB) intake accounted for 35% of the hPDI-CVD association and 15% of the uPDI-CVD association among individuals with prediabetes, whereas low intake of whole grain accounted for 36% of the association among patients with diabetes. Elevated cystatin C levels explained the largest proportion of the association between uPDI and CVD risk among individuals with prediabetes (15%, 95% CI = 7–30%) and diabetes (44%, 95% CI = 9–86%).ConclusionsAdherence to an unhealthy plant-based diet is associated with a higher CVD risk in people with prediabetes or diabetes, which may be partially attributed to low consumption of whole grains, high intake of SSB, and high blood cystatin C levels.

Dietary diversity contributes to delay biological aging.

As aging is a major risk factor for chronic diseases, strategies to promote healthy aging are essential. Dietary diversity has been reported to be beneficial for human health, however, the role in the biological aging process remains underexplored. Our aim was to analyse the potential link between diet diversity and aging. Twenty-two thousand six hundred participants from the National Health and Nutrition Examination Survey (NHANES) were included in this study. Dietary diversity was assessed by the dietary diversity score (DDS), which aggregated data on participants' self-reported dietary categories for the 5 major food groups (18 subgroups) over 2 rounds. Biological age was determined using the phenotypic age, with the residual between biological age and chronological age, phenotypic age acceleration, representing biological aging advance. Weighted multivariate regressions analysis were used to examine the relationship between DDS and phenotypic age acceleration. Sensitivity, subgroup interaction and mediation analyses were employed for further analysis. Higher DDS was consistently associated with slower phenotypic age acceleration (β < 0, p < 0.001). Subgroup analyses revealed that the inverse relationship persisted across categories, with minimal interaction effects. Sensitivity analyses confirmed the robustness of results. The oxidative stress indicator glutamyltransferase partially mediated the relationship between DDS and aging [4.9% (3.6, 6.0%), p < 0.001]. Dietary diversity is associated with a slower rate of biological aging, which may be due in part to reduced oxidative stress. These findings underscore the potential of a rich, broad-spectrum diet to promote healthy aging and reduce the burden of age-related diseases.

Are first-trimester pregnant women consuming adequate and diverse diet? A hospital-based cross-sectional study in Karachi, Pakistan

BackgroundMaintaining a healthy and diverse diet during pregnancy is crucial for maternal well-being and fetal development. The first trimester marks the beginning of vital developmental processes influenced by maternal nutritional status. Therefore, we aimed to determine dietary adequacy and diversity among first-trimester pregnant women.MethodsIn this cross-sectional study, we recruited 306 first-trimester pregnant women from the antenatal clinics of Aga Khan University Hospital, Karachi (January 2020 to September 2021). Eligible women possessed smartphones (for the mHealth intervention trial) and reported no major comorbidities or medication use. Data about socio-demographic, obstetric, and dietary history were collected through interviews using a structured questionnaire. Booking weight, height, blood pressure, and haemoglobin levels were extracted from medical records. An aggregate dietary risk score (DRS) was calculated separately for quantity and quality by summing the DRS for each of the six major food groups. A score of 0 was assigned to adequate, 1.5 to intermediate, and 3 to inadequate quantity or quality categories. Data were analysed using STATA 14.0.ResultsThe mean ± SD for DRS quantity and quality were 10.6 ± 2.4 and 7.5 ± 2.5, respectively. Adequate dietary quantity and quality per week for starch-based food were reported by 14.4% and 21.2%, for vegetables by 0.3% and 49%, for fruits by 41.2% and 88.6%, for animal and plant protein by 19% and 0%, for milk and milk products by 1% and 37.6% and for oils and fats by 90.5% and 8.8%, respectively. Sweet and savoury snacks were eaten by 74.8% and 53.9%, respectively. Ready-made meals, carbonated beverages, packaged juices, and additional salt were consumed by 55.2%, 46.4%, 34.3%, and 7.5%, respectively. The median (IQR) water intake was 6 (4–8) glasses/day.ConclusionsDuring the early stages of pregnancy, women enrolled for antenatal care at an urban private tertiary care hospital report inadequate dietary intake for various food groups, except for the quantity of oils/fats and the quality of fruit consumption. Poor dietary practices underscore the need for focused and impactful dietary counselling during the initial stages of pregnancy.

Improved water management can increase food self-sufficiency in urban foodsheds of Sub-Saharan Africa

Rising urban food demand in Sub-Saharan Africa will put pressure on local resource boundaries, such as the available land area and water resources. In assessing the extent to which urban centres can source from nearby areas in future, earlier analysis has concentrated on agronomic measures, aiming at yield gap closure. Here, we address the potential of local water conservation measures to help achieve food self-sufficiency in Sub-Saharan Africa by 2061–2070, along the concept of urban ‘foodsheds’, matching crop-based food supply and demand in the surroundings of large cities for all major food groups. We find that ambitious but plausible levels of water conservation, primarily raising productivity on rainfed lands, have the potential to increase overall food production by 12% and food self-sufficiency levels in all major foodsheds to over 75%, with the region as a whole becoming self-sufficient. The increase in production could limit the projected required expansion of agricultural land use by more than 25%, which has important implications for biodiversity, land use-related conflicts and carbon sequestration.

Frequent Dietary Multi-Mycotoxin Exposure in UK Children and Its Association with Dietary Intake.

Mycotoxins are potent fungal toxins that frequently contaminate agricultural crops and foods. Mycotoxin exposure is frequently reported in humans, and children are known to be particularly at risk of exceeding safe levels of exposure. Urinary biomonitoring is used to assess overall dietary exposure to multiple mycotoxins. This study aims to quantify multi-mycotoxin exposure in UK children and to identify major food groups contributing to exposure. Four repeat urine samples were collected from 29 children (13 boys and 16 girls, aged 2.4-6.8 years), and food diaries were recorded to assess their exposure to eleven mycotoxins. Urine samples (n = 114) were hydrolysed with β-glucuronidase, enriched through immunoaffinity columns and analysed by LC-MS/MS for deoxynivalenol (DON), nivalenol (NIV), T-2/HT-2 toxins, zearalenone (ZEN), ochratoxin A (OTA) and aflatoxins. Food diaries were analysed using WinDiet software, and the daily intake of high-risk foods for mycotoxin contamination summarised. The most prevalent mycotoxins found in urine samples were DON (95.6% of all samples), OTA (88.6%), HT-2 toxin (53.5%), ZEN (48.2%) and NIV (26.3%). Intake of total cereal-based foods was strongly positively associated with urinary levels of DON and T-2/HT-2 and oat intake with urinary T-2/HT-2. Average daily mycotoxin excretion ranged from 12.10 µg/d (DON) to 0.03 µg/d (OTA), and co-exposure to three or more mycotoxins was found in 66% of samples. Comparing mycotoxin intake estimates to tolerable daily intakes (TDI) demonstrates frequent TDI exceedances (DON 34.2% of all samples, T-2/HT-2 14.9%, NIV 4.4% and ZEN 5.2%). OTA was frequently detected at low levels. When mean daily OTA intake was compared to the reference value for non-neoplastic lesions, the resulting Margin of Exposure (MoE) of 65 was narrow, indicating a health concern. In conclusion, this study demonstrates frequent exposure of UK children to multiple mycotoxins at levels high enough to pose a health concern if exposure is continuous.

Investigating the mediating role of food involvement in the relationship between eating restrictions, nutritional knowledge, and dietary patterns in adults.

People's Dietary Patterns (DPs) are influenced by culture and ethnicity, and their identification requires a holistic assessment of diet. DP reflects dietary behaviors, and its analysis may provide further details about the dietary etiology of chronic diseases. By examining people's DP and related factors, more practical solutions can be proposed to prevent overweight, obesity, and related diseases. This study aimed to describe DP, Eating Restrictions (ER), Food Involvement (FI), Nutrition Knowledge (NK), and anthropometric indices in Iranian adults and determine the mediating role of FI in the relationship between ER, NK, and DP. A descriptive cross-sectional study was conducted using the structural equation modeling approach. The study was conducted on 2421 adults in Mazandaran Province, northern Iran. The Eating Restrictions Questionnaire (ERQ), the Food Involvement Inventory (FII), the komPAN questionnaire, and a demographic characteristics and anthropometric indices questionnaire were used to collect data. We also measured the seven major food groups, the Diet Quality Scores (DQS), and the six dietary indices, including the pro-Healthy-Diet-Index (pHDI-15), non-Healthy Diet-Index (nHDI-16), high-Glycemic-Diet-Index-7 (hGIDI-7), low-Glycaemic-Diet-Index-4 (lGIDI-4), high-Sugar-Diet-Index-4 (hSDI-4), and high-sugar product (hSFDI-6) and compared their values by gender and four BMI groups. The prevalence of ER and FI was 6.25% and 49.1%, respectively. NK was insufficient for 43.1% of the participants. Most participants (71.2%) had low DQS scores on pHDI-15 and moderate scores (52.9%) on nHDI-16. DQS scores were low in 64.8% of participants in the lGIDI-4 food group, while 71.7%, 92.6%, and 77.2% possessed moderate scores in the hGIDI-7, hSFDI-6, and hSDI-4 food groups, respectively. The mean pHDI-15 and lGIDI-4 indices were higher in women than in men. The amount of unhealthy food indices (nHDI-16, hGIDI-7, hSDI-4, and hSFDI-6) was higher in lean, overweight, and obese people than in people with a normal BMI. The structural model assumed between ER and DP and the mediating role of FI fit well with Iranian adults. Moreover, FI had a mediating role in the relationship between NK and pHDI_15 (Indirect Effects = 0.05, P<0.05) and nHDI_16 (Indirect Effects = -0.07, P<0.01). Most participants are small portions of the healthy food groups and the low glycemic foods, and FI plays a mediating role in the relationship between NK and ER with DP. Therefore, it is necessary to pay attention to the role of FI as a mediating variable in interventions based on reducing ER, increasing NK, and shifting DP from unhealthy to healthy.

Quantifying the greenhouse gas emissions of New Zealand households’ food purchases: An analysis by sociodemographic variables

New Zealand has committed to a 50% reduction in greenhouse gas emissions (GHGEs) from 2005 levels by 2030. Dietary changes within New Zealand could simultaneously improve population health and contribute towards the nation’s emissions reduction target, as agricultural emissions are estimated to account for half of New Zealand’s GHGEs(1). This research aimed to quantify the GHGEs associated with household purchases of major food groups in New Zealand and identify the sociodemographic characteristics that are associated with per capita household dietary emissions. Household dietary emissions were estimated using the NielsenIQ Homescan(R) consumer panel — a large sample of households within New Zealand who report purchasing data of take-home food and beverages. The sample is nationally representative in terms of broad geographical regions and selected key demographic characteristics. Carbon emission estimates were assigned to 1,908,485 total food and beverage purchases from 1,775 households over one year (2019) using a process-based life cycle assessment (LCA) dataset initially constructed in the United Kingdom (UK) and adapted for New Zealand(2). This LCA dataset contains estimates of greenhouse gas emissions generated over the life cycle of the production of food products from the following stages: farming and processing, transit packaging, consumer packaging, transport, warehouse and distribution, refrigeration, and overheads. Greenhouse gas emissions are expressed in kg of carbon dioxide equivalents per kg of food product over a 100-year time horizon. Total emissions from purchases of major food groups were then estimated. Multiple linear regression was used to examine the relationships between household variables and per capita dietary emissions. Overall purchases of red and processed meat (35%) and dairy products (19%) were responsible for the greatest proportion of emissions. The age group of the primary household shopper as well as household size were predictors of per capita dietary emissions — households with primary shoppers &gt; 65 years had, on average, 33% (95% CI: 20% to 49%) higher per capita dietary emissions, compared to households with primary shoppers 34 years; and every additional household member was associated with, on average, 11% (95% CI: 9% to 13%) lower per capita dietary emissions. We have shown in this large representative sample of New Zealand households that purchases of just two food groups — red and processed meat, and dairy — were responsible for approximately half of dietary greenhouse gas emissions. Larger households had lower per capita dietary greenhouse gas emissions, and older shoppers had relatively higher greenhouse gas emissions. Whilst similar associations have been reported elsewhere more research is needed to confirm these latter findings. With enhanced understanding of the observed association between age of a household’s primary shopper and per capita dietary emissions, interventions may be devised that encourage shoppers to purchase lower-emitting foods, particularly less meat and dairy.

Assessment of the state of actual nutrition in the population of the Russian Federation

Introduction. There was conducted the study of the actual nutrition in the population of the Russian Federation in 2017–2021, including a study of its trend and compliance with recommended rational standards.&#x0D; Materials and methods. The study used information from the Federal State Statistics Service (Rosstat) on consumption in population of the Russian Federation of the main food groups in households in 2017–2021. The annual representative sample was forty seven thousand eight hundred households. A method used to analyze time series of consumption of basic food products and a comparison of actual nutrition with recommended rational standards was carried out for the whole country, Federal districts, and constituent entities of the Federation.&#x0D; Results. In the Russian Federation in 2021, compared to 2017, consumption of most major food groups decreased. Consumption of meat and meat products increased by 6.8%, eggs by 1.3%. Consumption of fish and fish products remained at the same level. The analysis shows a decline in the consumption of bread and bakery products in all federal districts, with the exception of the Far East (an increase of 1.6%); potatoes, vegetable oil, with the exception of the Far East (an increase of 0.8%). At the same time, there is an increase in the consumption of meat and meat products in all federal districts, with the exception of the Far Eastern (decrease by 13.6%). For other product groups, consumption variations were noted.&#x0D; Below the recommended rational norms, the Russian population consumes fish and fish products, potatoes, bread, and bakery products, milk and dairy products, vegetables, fruits and berries, eggs, and vegetable oil. At the same time, excessive consumption of sugar (3.8 times higher than the norm), meat and meat products (27% higher than the norm) were noted.&#x0D; In the Federal Districts, consumption of most major food groups is below the recommended rational standards. In all federal districts, consumption of meat and meat products, sugar and confectionery products has increased.&#x0D; Significant differences have been established in the compliance of consumption levels with recommended rational standards by the population of the constituent entities of the Russian Federation in 2021. In most regions of the Russian Federation, high consumption of meat and meat products by the population is noted. &#x0D; All regions of the Federation have high consumption of sugar and confectionery products.&#x0D; Limitations. This study is limited by the size of the representative sample, which was 47.8 thousand households.&#x0D; Conclusion. The consequence of an irrational nutrition structure is a violation of the nutritional status, which is expressed in an increase in the prevalence among the population in recent years of such alimentary-dependent pathologies as obesity, hypertension, diabetes mellitus, and a number of others.

Dynamic analysis of Caribbean food import demand

Short- and long-run price and income elasticities are generally unavailable at the regional level for major imported food groups for the Caribbean. These elasticity measures are needed to enhance policymaking. This paper therefore seeks to determine the income, own-price and cross-price elasticities of eight major imported food groups. This will show the relationships between income and price changes on the import quantities for the major food groups. This was done using an error-corrected linear approximate almost ideal demand system (EC-LA-AIDS) for the period 1961–2021, using annual data. The study found that the theoretical restrictions of homogeneity and symmetry did not hold in the static LA-AIDS model but did in the EC-LA-AIDS model. The speed of adjustment parameter in the EC-LA-AIDS model revealed that imported beverages had the slowest adjustment to long-run equilibrium while all other imported food categories had a moderate adjustment speed. The study also derived short- and long-run income and price elasticities of import demand for the eight imported food categories. In both time horizons, income elasticities revealed that all imported food categories were normal goods. In both time horizons, imported meat and seafood, and sugar and honey were the most responsive to changes in income, while spices and tea was the least responsive. Own-price elasticities revealed that all imported food categories were import price inelastic except for meat and seafood which was found to be import price elastic in both time horizons. Additionally, cross-price elasticities unveiled various substitution and complementary relationships between pairs of imported foods. The study not only contributed empirical insights into the import demand dynamics of the Caribbean, but also emphasized significant policy implications arising from the research findings.

Bioaccessibility-corrected probabilistic health risk assessment of dietary metal(loid) exposure in six major food groups in children from Northwest China

Dietary exposure to heavy metals and metalloids [metal(loid)s] deserves increased attention; however, there is a lack of a comprehensive understanding of the risks of dietary exposure from multi-type food intake and multi-metal(loid) exposure using a bioaccessibility-corrected method. Here, we determined the concentration and bioaccessibility of six toxic metal(loid)s in six major food groups in an industrial city with intensive smelting activity. By incorporating children’s dietary patterns, the probability distribution of health risks from dietary metal(loid)s exposure was assessed. Marked differences were observed in the dietary exposure characteristics within metal(loid)s and major food groups. Cereal and vegetables were the major food groups local children intake. Cereals, meat, beans, and aquatic products had the highest concentrations of Cu and Cd, Pb and Cr, Ni, and As, respectively. Generally, meat, eggs, and aquatic products exhibited higher bioaccessibility than cereals, beans, and vegetables. The bioaccessibility of metal(loid)s decreased in the following order: Pb > Cr > Cu > Ni > As > Cd. For non-carcinogenic risks, the average hazard index was 7.3, with 99.6% exceeding acceptable levels. Arsenic was the dominant risk element and aquatic product was the main risk source. The aggregated carcinogenic risk was 3.4 × 10–3, with Cr the major risk contributor and cereals and meat the dominant food sources. The findings demonstrated that (1) the metal(loid) dietary exposure risk of children from areas with intensive smelting activities should be taken seriously, and (2) it is necessary to identify the specific food category and metal(loid) based on a comprehensive analysis of the metal(loid) concentration and bioaccessibility, and dietary habits of the population to effectively reduce risk.

Empirically derived portion sizes from the DOrtmund Nutritional and Anthropometric Longitudinally Designed (DONALD) study for 4- to 18-year-old children and adolescents to simplify analysis of dietary data using FFQ.

To apply FFQ, knowledge about portion sizes is relevant. According to increased energy and nutrient requirements, average portion sizes of foods are supposed to increase during growth. We provide empirically derived portion sizes for 4- to 18-year-olds in different age groups to facilitate analyses of FFQ data in children and adolescents. Using data from the dynamic DOrtmund Nutritional and Anthropometric Longitudinally Designed cohort study, quantile regression for smoothing percentiles was used to derive portion sizes as a function of age from which age- and food group-specific portion sizes were calculated as median food group intake (g). Dortmund, Germany. Data from 3-day weighed dietary records (WDR) of 1,325 participants (♀: 653) were analysed. Participants provided in total 9,828 WDR (on average 7·5 per participant) between 1985 and 2022. WDR were grouped into five age groups, whereby each age group covered 3 years of age. In total, 11 955 food items were reported and categorised into sixteen major food groups with seventy-one sub-groups. Portion sizes tended to increase with age, except for milk- and plant-based alternatives. Comparing 4- to 6-year-olds to 16- to 18-year-olds, portion size increased between 22·2 % (processed meat: 18 g v. 22 g) and 173·3 % (savoury snacks: 15 g v. 41 g). We provide empirically derived portion sizes for children and adolescents. These data are useful to establish dietary assessment methods based on estimates of portion sizes, such as FFQ, for children and adolescents.

The global nutrition can be greatly improved with diet optimization

Malnutrition and nutritional imbalances resulting from a poor diet are common worldwide. Here, we present a diet structure optimization model aimed at improving the nutritional levels, while keeping the optimized diet affordable and acceptable. We optimized the current diet of 181 countries by incorporating ten major food groups. A simple diet adjustment could increase the nutritional levels by up to 11.9 % and significantly address the existing nutrient imbalances. The optimized diet is environmentally friendly, reducing the total land use and greenhouse gas emissions by 11.8 % and 8.3 %, respectively. Furthermore, compromising on some nutritional improvements could yield greater environmental benefits, which could result in 17.1 %, and 12.7 % reductions in total land use and greenhouse gas emissions, respectively. Moreover, a 28.4 % diet cost increase can lead to a maximum of 9.7 % greater nutritional improvement than the optimal increase of constant cost. We provide a global diet optimization strategy that improves both human nutrition and sustainability.

Incorrect Feeding Practices, Dietary Diversity Determinants and Nutritional Status in Children Aged 6-23 Months: An Observational Study in Rural Angola.

More than a quarter of children who are affected by severe acute undernutrition reside in Sub-Saharan Africa. Incorrect feeding practices have a negative impact on a child's health in both the short and the long term, and the interval from conception to two years is the most critical for the development of undernutrition-related complications. These first 1000 days of life also represent an "opportunity window" for early interventions, hence, having a clear insight into dietary habits and the determinants of diet quality is fundamental to improving nutritional counseling practices. To investigate incorrect feeding practices, dietary diversity determinants and nutritional status in children aged 6-23 months. Prospective quali-quantitative observational study conducted at the Missionary Catholic Hospital of Chiulo (Angola) from March to April 2023. Of 250 children, global acute malnutrition affected 25.2% and was associated with starting complementary feeding at <4 months of age (p = 0.007) and not achieving the minimum meal frequency (p < 0.0001). Minimum dietary diversity was found in 11.2%, minimum meal frequency was experienced by 72.8%, and the minimum acceptable diet was found in 11.2% of participants. The minimum dietary diversity was reached only by households with access to food from five or more major food groups (p = 0.007) or the money to buy food from five or more major food groups (p = 0.008) and was higher in households where the householder had a higher educational level (p = 0.002). Regarding the determinants linked to family traditions and beliefs, the main religion-associated beliefs concerned the impurity of pork (n = 25) and fish (n = 8), while eggs (n = 19) and cow milk (n = 8) were the main food types that were deemed harmful for children. Although some factors (economic and religious) may be difficult to overcome, other factors linked to erroneous beliefs (dangerous foods) or incorrect feeding practices (early weaning and an incorrect frequency of meals) can be targeted, to improve the effectiveness of nutritional counseling practices.

Assessment of the Dutch Healthy Diet index 2015 in the Lifelines cohort study at baseline

BackgroundDietary indices are useful measures to investigate associations between dietary intake and disease development. The Dutch Healthy Diet index 2015 (DHD2015-index), a measure of diet quality, assesses adherence to the 2015 Dutch dietary guidelines. We assessed the DHD2015-index in the Lifelines cohort study, and compared calculations from basic and detailed dietary intake data. This article replaces the retracted article that was published on 16 May 2022 [1].MethodsDietary intake was assessed with a specially developed Food Frequency Questionnaire (FFQ) called Flower-FFQ, which consists of one main questionnaire (heart-FFQ), which asks for intakes of major food groups, and three complementary questionnaires (petal-FFQs), which ask for detailed information on food types within major food groups of the heart-FFQ. The DHD2015-index was assessed using data from the total Flower-FFQ (for 56,982 participants), and using data from the heart-FFQ only (for 129,030 participants). Agreement between the two indices was assessed with correlation and cross-classification.ResultsThe median (25th–75th percentile) DHD2015-index score was 75 (65–85) for men and 81 (70–91) for women based on the Flower-FFQ, and 68 (58–77) for men and 73 (63–82) for women based on the heart-FFQ. The Kendall’s tau-b correlation coefficient between the two scores was 0.67 for men and 0.66 for women. Cross-classification into quartiles of the DHD2015-index showed that 59–60% of participants were classified in the same quartile, 36–37% in the adjacent, and 4% in the non-adjacent.ConclusionDietary data from the Flower-FFQ provide the most optimal information to assess the DHD2015-index. However, the DHD2015-index from the heart-FFQ showed good agreement with the index from the Flower-FFQ of ranking participants according to diet quality, and can be used when the DHD2015 index from the Flower-FFQ is not available.

Perception of Nutrition in Adults with Sickle Cell Disease: Concept Elicitation of Nutritional Status and the Mini Nutrition Assessment

Introduction Sickle Cell Disease (SCD) is a genetic disorder that causes recurrent vaso-occlusive pain events, functional impairment, and nutritional deficiencies due to increased metabolic demands. Prior studies have highlighted nutritional issues in people with SCD, such as micronutrient and macronutrient deficiencies, low body mass index (BMI), and a recent rise in obese adults with SCD. In older adults in the general population, evaluation and management of nutritional status is essential since malnutrition can weaken the immune system and increase the risk of hospitalization and death. Despite the importance of nutrition, little is known about the best way to evaluate nutritional status in older adults with SCD. To identify a relevant yet efficient method to evaluate nutritional status, we conducted content elicitation interviews to describe how younger and older adults conceptualized nutrition. Based on the content of the interviews, we piloted a brief nutritional survey called the Mini Nutritional Assessment (MNA); a common nutritional measure in geriatric assessments. Methods As standard practice for concept elicitation, we conducted semi-structured interviews with adults SCD in 4 separate focus groups: two groups of young adults age 18-39 and two groups of older adults age ≥ 40 years. Participants were asked about their perception of the construct of nutrition as part of a longer concept elicitation interview assessing the content validity of the Sickle Cell Disease Functional Assessment (SCD-FA), which is the geriatric assessment for adults with SCD. After focus group transcripts were analyzed using rapid qualitative analysis, we administered the MNA to a separate cohort of adults with SCD, since its content on macronutrients and hydration was consistent with how adults with SCD conceptualized nutrition. The scores on the 6-item MNA-Short Form (MNA-SF) range from 0 to 14 with higher scores indicating better nutritional status. Scores 12-14 indicate a normal nutritional status, 8-11 indicate at risk for malnutrition, and 0-7 indicate a malnourished state. Results The 4 focus group interviews included 6 younger adults (age 18-39) and 8 older adults (age ≥ 40 years) with SCD. Participants were 57% females and 79% had severe SCD genotype (HbSS or HbSβnull-thalassemia). In the focus groups, participants described a healthy diet as one that included the major food groups, which were generally defined as protein, fruits and vegetables, and starches/carbs. The majority discussed the importance of adequate hydration to reduce the risk of pain crises. Additionally, participants reported trying to substitute water for soda, juice, and caffeine containing beverages. Many participants stated that a healthy diet involved limited processed foods and sugars. Despite knowledge of the characteristics of a “healthy” diet, some participants expressed difficulty maintaining this diet. Based on these qualitative results, we selected the MNA to evaluate nutrition since it included items on hydration and assessed intake of various food groups as described by focus group participants. We administered the MNA-SF to a cohort of 88 adults with SCD and 81 had complete data to score the MNA-SF. The mean score for the MNA-SF for all participants was 11.7 ± 1.8 (younger adults 11.6 ± 1.9 and older adults 11.9 ± 1.8; p= 0.44). The MNA-SF identified 40% (n=34) as being at risk of malnutrition [36% of older adults and 46% younger adults]. Two participants were identified as being malnourished (1 younger and 1 older adult). On remaining MNA items (Table 1), 25% of participants reported decreased food intake with 17% having only 1 meal/day. Most participants (85%) consumed ≥ 1 serving of protein/day and 75% had ≥ 2 servings of fruits or vegetables/day. Most participants (68%) drank &amp;gt; 5 cups of water/day. Results were similar for younger and older adults with SCD. Conclusion Data from the focus group interviews revealed that BMI and unintentional weight loss measures alone did not comprehensively capture how people with SCD perceived the concept of nutrition. Incorporating the MNA-SF enhanced measurement of the nutritional domain in the SCD-FA by capturing data on food intake and hydration. In future studies we will assess the construct validity of the full MNA in a larger sample to identify older adults with SCD who would benefit most from nutritional interventions.

Assessment of crustacean allergen detection methods: cross reactivity with edible insect samples

Increased interest in consumption of insects in recent years has led to an increased focus on associated food safety concerns, and allergy is one of the most relevant. In the United States, crustacean shellfish are regulated as a major allergenic food group per the Food, Drug, and Cosmetic (FD&C) Act. Insects and crustacean shellfish are both arthropods, and clinical cross-reactivity between the two groups has been demonstrated. The goal of this work was to establish whether that clinical cross-reactivity translates into analytical cross-reactivity with detection assays targeting crustacean shellfish allergens. Edible insect samples were analyzed using four different crustacean allergen detection methods: Multi-Analyte Profiling Food Allergen Detection Assay (xMAP FADA), enzyme-linked immunosorbent assay (ELISA), western blot, and real-time polymerase chain reaction (PCR). Results indicate that the immunoassay-based xMAP FADA, ELISA, and western blot were susceptible to cross-reactivity, while the DNA-based PCR methods had minimal reactivity with insect samples. These results confirm that edible insects show analytical cross-reactivity with the immunoassays which may result in false positive detection of crustacean allergens in insect samples. Confirmation using DNA-based PCR, which shows little to no cross-reactivity, clarifies ambiguous results.

Quantifying the greenhouse gas emissions of New Zealand households’ food purchases: An analysis by demographic variables

New Zealand has committed to a 50% reduction in greenhouse gas emissions (GHGEs) from 2005 levels by 2030. Dietary changes within New Zealand could simultaneously improve population health and contribute towards the nation's emissions reduction target, as globally, food production is estimated to account for between one quarter and one third of GHGEs. This research aimed to quantify the GHGEs associated with household purchases of major food groups in New Zealand and identify the demographic characteristics that are associated with per capita household dietary emissions. Household dietary emissions were estimated using the Nielsen Homescan(R) consumer panel — a large sample of households within New Zealand (N = 1775) who report purchasing data of take-home food and beverages. The sample is nationally representative in terms of broad geographical regions and selected key demographic characteristics. Carbon emission estimates were assigned to 1,908,485 total purchases in 2019 using a process-based life cycle assessment (LCA) dataset initially constructed in the United Kingdom (UK) and adapted for New Zealand. The emissions from purchases of major food groups were then estimated. Multiple linear regression was used to examine the relationships between household variables and per capita dietary emissions. Purchases of red and processed meat (35%) and dairy products (19%) were responsible for the greatest proportion of emissions using a 100-year time horizon. The age group of the primary household shopper as well as household size were predictors of per capita dietary emissions — households with primary shoppers >65 years had, on average, 33% (95% CI: 19%–49%) higher per capita dietary emissions, compared to households with primary shoppers ≤ 34 years; and every additional household member was associated with, on average, 11% (95% CI: 9%–13%) lower per capita dietary emissions. We have shown in this large representative sample of New Zealand households that purchases of just two food groups — red and processed meat, and dairy — were responsible for 54% of dietary greenhouse gas emissions in 2019. Larger households had lower per capita dietary greenhouse gas emissions, and older shoppers had relatively higher greenhouse gas emissions. Whilst similar associations have been reported elsewhere, more research is needed to confirm these latter findings. With enhanced understanding of the observed association between age of a household's primary shopper and per capita dietary emissions, interventions may be devised that encourage shoppers to purchase lower-emitting foods, particularly less meat and dairy.

Environmental Impact of Diets in 10 European countries

Abstract Background A growing consensus suggests that dietary changes have the potential to lessen the environmental impacts of food production. We performed a cross-country comparison of dietary patterns and their associated environmental impact in Europe, including by socio-demographic factors. Methods We analyzed pooled cross-sectional 24/48/72-hour dietary records collected during 2010-2018 from 10 European countries using the European Food Safety Authority (EFSA) Comprehensive European Food Database (16,508 adults; age 18-79 years). Each food consumed was mapped to the corresponding environmental impact data using the SHARP Indicators Database, which provides greenhouse gas emission (GHGE kgCO2-eq/day) and land use (LU m2*year/day) values for approximately 900 foods. Multivariable linear regression models were used to compare diet-associated GHGE and LU between population subgroups (gender, age, education, and diet type) with country-level fixed effects. We also analyzed the contributions of major food groups to the mean daily total of GHGE and LU for each country. Results The mean dietary GHGE and LU per capita ranged from 4.0 kgCO2eq and 5.0 m2*year in Spain to 6.5 kgCO2eq and 8.2 m2*year in France. Diet-related GHGE and LU (per Kg/food) were lower amongst females (2.6kgCO2eq, B=−0.08, P &amp;lt; 0.01; 3.2m2*year, B=−0.11, P &amp;lt; 0.01), people aged 66-79 (2.6kgCO2eq, B=−0.03, P &amp;lt; 0.01; 3.4m2*year, B=−0.4, P &amp;lt; 0.01), people following vegetarian diets (1.7kgCO2eq, B=−0.07, P &amp;lt; 0.01; 2.0m2*year, B=−0.07, P &amp;lt; 0.01), and higher amongst individuals with secondary education (2.7kgCO2eq, B = 0.04, P &amp;lt; 0.01; 3.6m2*year, B = 0.05, P &amp;lt; 0.01). Conclusions The impact of specific food groups on environmental footprints varies across countries and between different socio-demographic groups, signaling that cultural, literacy and generational factors possibly contribute to determine consumers’ environmental footprints. Key messages • The environmental impact varies across nations and socio-economic groups, highlighting the significant role played by cultural and generational factors in shaping consumers’ environmental footprints. • The study findings are crucial for the development of country-specific food policies aimed at promoting environmentally friendly diets.