Nutrition and health最新文献

This study aimed to explore the relationship between food intake frequency, weight status, and intelligence among school children. A cross-sectional study involved 562 children (aged 6.3-12.7 years) randomly selected from five elementary schools in Taichung City, Taiwan. Demographic information was collected, and the children's body weight and height were measured to calculate their body mass index. A food frequency questionnaire assessed the participating children's dietary habits. Intelligence quotient scores were evaluated using Raven's colored progress matrices for first and second graders, and Raven's standard progressive matrices for third to sixth graders. This study found that there was no significant relationship in intelligence quotient scores between gender, birth order groups, and weight status. The higher consumption of pork liver, hamburgers, fruit juices, and the Taiwanese snack "Science Noodles" was associated with lower intelligence quotient scores among school children.

Background: Community-based nutrition interventions have been established as the standard of care for identifying and treating acute malnutrition among children 6-59 months in low- and lower-middle-income countries. However, limited research has examined the factors that influence the implementation of the community-based component of interventions that address severe acute malnutrition and moderate acute malnutrition among children. Aim: The objective of this review was to identify and describe the facilitators and barriers in implementing complex community-based nutrition interventions to address acute malnutrition among children in low- and lower-middle-income countries. Methods: This review used a systematic search strategy to identify existing peer-reviewed literature from three databases on complex community-based interventions (defined as including active surveillance, treatment, and education in community settings) to address severe acute malnutrition and moderate acute malnutrition in children. Results: In total, 1771 sources were retrieved from peer-reviewed databases, with 38 sources included in the review, covering 26 different interventions. Through an iterative deductive and inductive analysis approach, three main domains (household and interpersonal, sociocultural and geographical; operational and administrative) and eight mechanisms were classified, which were central to the successful implementation of complex community-based interventions to address acute child malnutrition. Conclusion: Overall, this review highlights the importance of addressing contextual and geographical challenges to support participant access and program operations. There is a need to critically examine program design and structure to promote intervention adherence and effectiveness. In addition, there is an opportunity to direct resources towards community health workers to facilitate long-term community trust and engagement.

Background: Although Calorie Restriction (CR) is primarily considered in obesity management, behavioral studies of CR and its methodology of implementation are not well-defined. Objective: The study aimed to determine the efficacy of the extensively researched method of CR-abrupt calorie restriction (ACR) and a newly proposed gradual calorie restriction (GCR) in terms of body weight, behavioral and biochemical parameters in the obese animal model-C57BL/6J mice. Design: Male obese mice were subjected to GCR regimen for 14 weeks which was compared and evaluated for anxiety-like behavior and stress levels with ACR. Plasma corticosterone was measured before initiation of CR and every three weeks following GCR and ACR, whereas plasma insulin was measured twice-after obesity induction and post 14 weeks of CR. The behavioral assessments were conducted before inducing CR and every three weeks following ACR and GCR. Results: A significant anxiety-like behavior and an increase in plasma corticosterone were observed in mice on GCR during the critical initial six weeks of CR (p < 0.05). Both groups showed a decrease in plasma glucose levels; however, the GCR group showed a significant reduction (p < 0.01). There was a significant decrease in social interaction in both groups with an increase in the latency period and a decrease in time spent with the stranger animal during the social interaction test (p < 0.05). Conclusion: The mice on GCR regimen demonstrated lesser anxiety-like behavior and low plasma corticosterone levels compared to those on ACR. This gives us a new avenue in CR research to evaluate the methodologies of implementing CR.

Foods contain substances impacting the acid-base balance. The Western diet is often viewed as being overly acid due to its high-level of animal-based protein and low-level of vegetable intake. Meanwhile, with ageing the ability to excrete acid compounds is reduced as kidney function declines and so there is a risk of acid retention and subsequent interstitial acidosis. Two systems used for calculating the Dietary Acid Load (DAL): the potential acid load of foods (PRAL) and the net endogenous acid production (NEAP). This report outlines weaknesses in these formulas and concludes that dietitians and nutritionists lack the necessary tools to research the acid-base hypothesis. Additionally, the report emphasizes the importance of food selection in the ageing population. Background: Foods contain substances impacting the acid-base balance. The Western diet is often viewed as being overly acid due to its high-level of animal-based protein and low-level of vegetable intake. There are concerns that the disproportionate acid intake promotes low-grade metabolic acidosis in the interstitial fluid, interstitial acidosis, and may lead to chronic disease. Two formulas are used for calculating the DAL: the PRAL and the NEAP. Both PRAL and NEAP are based on levels of protein and minerals. Aim: To identify additional food constituents that impact DAL. Methods: Review of the literature concerning the acid-forming and alkaline-forming constituents of foods. Results: Five additional food constituents were identified as potentially having a meaningful impact on DAL. The oxidation of taurine and the metabolism of fructose and purines increase acidity, whereas organic acids increase alkalinity. Additionally, polyphenols affect the microbiota which break down uric acid excreted in the intestinal tract. Conclusions: Neither PRAL nor NEAP provides complete assessments of the impact of foods on DAL. These formulas could be improved by the inclusion of dietary amino acids rather than protein, taurine, purines, fructose, organic acids and polyphenols. Currently, dietitians and nutritionists lack the necessary tools both to research the acid-base hypothesis and recommend managed diets. Managed diets are of particular importance for the elderly because of their reduced kidney function which increases the risk of acid retention and subsequent interstitial acidosis.

Background: Disordered eating is common among late adolescents and young adults who pursue an idealised body image. Aims: This study aims to determine the prevalence of disordered eating between males and females and its associated factors among college and university students in Sarawak. Methods: A cross-sectional study involving 20 public and private colleges and universities in Sarawak, from September 2017 to March 2020. Respondents completed self-administered questionnaires both in the English and Malay language. Data about sociodemographic characteristics, body mass index, eating attitude, body dissatisfaction, perceived sociocultural pressure, self-esteem, drive for muscularity and perfectionism were collected. Results: A total of 776 respondents (male: 30.9%; female: 69.1%) aged 19 to 25 years old took part in the study. The overall prevalence of disordered eating was 25.2% (95% confidence interval (CI) 21.9; 28.7) with females (28.6%, 95% CI 24.6; 32.9) higher than males (15.6%, 95% CI 10.5; 21.9). Multivariate analysis showed for both male and female models, perceived sociocultural pressure (male: β = 1.125, p < 0.01; female: β = 1.052, p = 0.003), drive for muscularity (male: β = 1.033, p = 0.017; female: β = 1.032, p < 0.01) and perfectionism (male: β = 1.098, p = 0.02; female:β = 1.119, p < 0.01) were predictors for disordered eating. Conclusion: The prevalence of disordered eating among college and university students in Sarawak was high. The findings suggest that although there were gender differences in the prevalence of disordered eating, its associated factors were the same. The findings of this study will be useful for designing and implementing disordered eating prevention and intervention programme.

Few previous review articles have focused on the associations between inadequate daily water intake (LOW) or urinary biomarkers of dehydration (_UD; low urine volume or high urine osmolality) and multiple diseases. Accordingly, we conducted manual online searches (47 key words) of the PubMed, Embase, and Google Scholar databases with these inclusion criteria: English language, full-text, peer reviewed, no restriction on research design, and three publications minimum. Initially, 3,903 articles were identified based on their titles and abstracts. Evaluations of full length .pdf versions identified 96 studies that were acceptable for inclusion. We concluded that the evidence is insufficient or conflicting for seven disorders or diseases (i.e. suggesting the need for additional clarifying research) and it is lacking for all-cause mortality. Differential characterizations among women and men have been reported in the results of nine studies involving five diseases. Finally, the evidence for associations of LOW or _UD is strong for both kidney stones and type 2 diabetes with hyperglycemia. This suggests that great public health value (i.e. reduced disease risk) may result from increased daily water intake-a simple and cost-effective dietary modification.

Background: Nutrition security encompasses stable and equitable access, availability, affordability, and utilization of healthy foods.

Aim: To evaluate the relationship of two newly created dichotomous measures that represent aspects of nutrition security (i.e., perceived limited availability and healthfulness choice) with Supplemental Nutrition Assistance Program (SNAP) participation.

Methods: Logistic regression models were run for each outcome separately with adjustment for age, income-to-poverty ratio, gender, education, race, and food security.

Results: Adults using social services (e.g., food pantries) were enrolled (N = 402) in this cross-sectional analysis. SNAP participants (61.7%) were not different from non-SNAP participants in perceiving limited availability (aOR [95% CI]: 1.21 [0.75, 1.95]) or limited ability to choose (aOR [95% CI]: 0.69 [0.43, 1.12]) healthy foods.

Conclusions: Both SNAP and non-SNAP participants with low socioeconomic status report limited availability of healthy foods in their environment and a limited ability to choose healthy foods.

Background: Energy expenditure may be difficult to assess when hiking difficult trails. Case presentation: We measured physical activity exercise energy expenditure (PAEE) directly from oxygen uptake using a mobile device (cardiopulmonary exercise testing, CPET), and by using a formula based on heart rate (HR), or metabolic equivalent values from the Compendium of Physical Activity, and other physiological outcomes. Outcomes and implications: Total PAEE (1342 kcal) using CPET showed a two-fold difference between ascending and descending (887 vs. 455 kcal) during a 124-min hike. For HR, PAEE was 1893kcal (+551 kcal overreporting), while compendium-based scenarios ranged from 1179 to 1446 kcal, which was in closer range (-163 to +104 kcal/min) compared to the CPET data. Fluid consumption was 1300 mL/hour, with 1.1% bodyweight loss, peak skin temperature of 35.2°C and core body temperature of 39.2°C. Recommendations: Tables reasonably predict energy expenditure while not precisely reflecting the actual situation.

Background: In Germany, the nutritional situation of adults and children living in households at risk of poverty has been insufficiently studied so far. Aim: The aim of the mixed-methods study MEGA_kids is to gain a deeper understanding of the nutritional situation including socioeconomic, behavioral, and attitudinal factors and health characteristics among persons living in families at risk of poverty. Method: MEGA_kids is a mixed-methods cross-sectional study consisting of four modules combining quantitative and qualitative methods. The first module (A) applies self-administered questionnaires to assess the individual's diet, household food insecurity, and several other factors among adults and children of 500 households. Cash receipts are used to assess household's food expenses. For the second module (B), a semistructured interview guide is used to identify factors influencing food security and nutritional quality from the perspective of a subsample of module A (n = 20). The third module (C) applies the participatory World Café technique to explore experiences and generate ideas for tailored support measures for a healthy diet from the perspective of 40 parents participating in module A. Finally, the fourth module (D) investigates the knowledge and usage of existing nutrition-related preventive measures among 200 parents at risk of poverty by using an online questionnaire. Conclusion: By providing a comprehensive picture of nutritional aspects of families living at risk of poverty, MEGA_kids will guide officials to target and prioritize public health nutrition measures, inform policy makers to implement and improve healthy policies and, finally, identify research gaps to be prioritized.