Human Nutrition and Metabolism最新文献

Context

Vitamin D acts as an immune modulator, by downregulating the production of inflammatory immune markers and upregulating the production of anti-microbial peptides and anti-inflammatory markers. Hence, vitamin D may be useful in improving the immune response against respiratory tract diseases.

Objective

A systematic review (following PRISMA guidelines) and meta-analysis were performed to study the effect of vitamin D supplementation on the immune response to respiratory tract diseases irrespective of population type.

Data sources

Electronic search engines Pubmed, Pubmed Central, Google Scholar, Clinicaltrials.gov, Clinical Trial Registry India, ScienceDirect, and Web of Science were searched for relevant articles.

Data extraction

Sixteen RCTs were eligible for inclusion. Jadad scale was used to assess the quality of studies. Methods of the selected studies were assessed using the Cochrane Risk of Bias assessment. Using the random-effects model meta-analysis was performed if at least three articles studied similar immune markers. Thus, IL-6, cathelicidin, CRP, TNF alpha, and IFN gamma, were included in the analysis. In all 16 articles were included for qualitative assessment, and 14 articles for meta-analysis.

Data analysis

There was a significant decrease in CRP levels after intervention with an overall effect of Z = 3.37 (P < 0.00). The observed increase in IL-10 levels was not significant with an overall effect of Z = 0.84 (p = 0.40). There was no significant decrease in IL6 [Z = 0.59 (P = 0.56)], and interferon-gamma levels [Z = 1.70 (p = 0.09)]. Secondary outcomes including mortality, and length of hospital stay did not show a significant difference in the intervention group.

Conclusion

Among the biomarkers studied CRP significantly decreased, with no significant changes in the others. Our findings suggest that vitamin D supplementation modestly affects the immune response. Pooling infectious and non-infectious respiratory diseases could have underestimated our findings. More RCTs are warranted to obtain substantial results.

Background

Hypertension is a major public health concern in both developing and developed countries. However, there is a lack of hypertension research at the local level, particularly in the Rangpur region of Bangladesh.

Aim

The study aims to estimate the prevalence of hypertension as well as the specific association of hypertension with overweight and obesity among adults in the Rangpur region of Bangladesh.

Methods

This cross-sectional study was conducted in the Rangpur division of Bangladesh from July to September 2021. A total of 1302 individual data were collected by the simple random sampling method. A multivariate logistic regression model was used to identify the factors associated with hypertension. To show the strength of association, both the unadjusted Crude Odds Ratio (COR) and the Adjusted Odds Ratio (AOR) were reported with a 95 % confidence interval (CI).

Results

The overall prevalence of hypertension, overweight, and obesity in the sample population were 23.0 %, 40.6 %, and 7.0 %, respectively. The study identified a significant association between hypertension and overweight and obesity (p-value <0.001). Overweight adults had a 61 % higher risk of hypertension (AOR: 1.61; 95 % CI: 1.22–2.14), while the risk was 2.35 times higher for obese individuals (AOR: 2.35; 95 % CI: 1.43–3.87), compared to those with normal weight.

Conclusion

Given the high prevalence of hypertension in the study area, immediate public health initiatives are imperative. It is crucial to prioritize overweight and obesity as key factors in designing effective interventions for hypertension prevention and control.

Background

Screening is needed for the early detection of obesity, but if detection through anthropometric examinations and body composition measurements is not correct, then cases of obesity will increase and it will be too late to prevent. The aim of this study was to find a correlation between anthropometric parameters and body composition parameters such as fat mass in adult non-athlete males and females.

Patients and Methods

The study design was cross-sectional and included 255 men and women from three cities in Indonesia. The research subjects were 18-60 years old and underwent anthropometric and body composition examinations. The parameters assessed were body mass index (BMI), waist circumference, visceral fat, fat mass, fat-free mass index (FFMI), and normalized FFMI; BMI and fat mass was used for comparison. For further analysis, the chi-squared test and Spearman's correlation were used.

Results

The results show that BMI, waist circumference, and visceral fat had the highest difference between men-women, and in obese-non obese cases. Body mass index is a factor that has a strong correlation with fat mass (r=0.687); additionally, waist circumference can be used as a parameter that has a medium correlation with fat mass (r=0.46) and visceral fat has weak correlation with fat mass (r=0.348). Waist circumference also had a strong correlation with BMI (r=0.785). While FFMI and normalized FFMI showed correlation to BMI, but not to fat mass.

Conclusions

This study found that BMI can be used as a strong assessment to detect obesity in men and women who are not athletes, besides that waist circumference and visceral fat can be used as a easy assessment to detect obesity as a prevention action. Apart from that, FFMI and normalized FFMI can be more accurate for obese detection based on BMI or waist circumference.

The study aimed to evaluate the effectiveness of a culinary nutrition education program at a 3-month follow-up, in terms of children's dietary practices and variety. The randomized-controlled trial was conducted among Malaysian children aged 10–11 years, in a school-based setting. The main intervention components include a parent-child session on the home food environment, followed by 5 experiential healthy meal preparation sessions, conducted fortnightly with each session lasting an hour. Dietary data were collected using an adapted guided form, in line with the Malaysian Dietary Guidelines for Children and Adolescents at baseline, post-intervention, and a 3-month follow-up (intervention: n = 41, control: n = 42, drop-out rate: 15.3 %). Overall, the children recruited were mainly from low-to middle-income households (76 %) whose families attained at least secondary or tertiary education (95 %). At the 3-month follow-up, significant group and time interaction effect (p < 0.001) revealed that the intervention group consumed whole grains (F-stat = 24.04), fruits (F-stat = 30.45), and vegetables (F-stat = 77.69) more frequently, while the frequency consumption of the control group remained relatively stable over time. Similarly, desirable change was seen favoring the intervention group (p < 0.001) for refined grains (F-stat = 30.96), processed foods (F-stat = 49.74), and sweetened beverages consumption (F-stat = 40.78). Further, the intervention group had good diet variety during dinnertime, compared to the controls (χ² = 5.655, p = 0.017). Findings highlighted the prospect of experiential culinary nutrition programs in advocating healthy eating behavior among children.

Background and aims

Until COVID-19, obesity was the main pandemic of 21 century. To date, there have been 767984989 confirmed cases, and 6943390 include death cases of COVID-19 (WHO). To find the prevalence of Obesity among adults, to adjudge the attitude and behavior of selected subjects towards eating healthy and weight loss during pre- and post-COVID-19.

Methodology

Subject selection was done through non-probability judgemental sampling. Initially, 70 young adults between 18 and 39 years of age were selected from different localities of Delhi (NCR). The study was conducted based on a questionnaire developed for the survey. Based on the inclusion criteria only 50 subjects were selected for further study. The study was constructed into three phases and the arrangement of subjects was elaborated as under. Phase 1 includes field study, clinical examination, and biochemical analysis, phase II includes the division of experimental and control groups, whereas Phase III includes the pre& post-COVID nutritional status, anthropometric assessment, beverage consumption, and sleep patterns were also assessed.

Result

The nutrition intervention in E3 (balanced diet + nutrient supplement) showed a significant difference with the control group followed by E2 (nutrient supplement) and E1 (balanced diet). Our findings showed that the subjects have Calorie, protein, fat, carbohydrates, sodium, and potassium intake significantly decreased (P= <0.001) during post-intervention, whereas, the fiber, vitamin A, vitamin C, and iron (P= <0.001), and calcium (p = 0.006), intake significantly increased during post-intervention. The changes in anthropometric parameters such as waist-to-hip ratio (WHR), body mass index (BMI), and fat% for pre-COVID-19 were higher for both men and women, but after following the dietary recommendation and physical activity found a significant reduction in WHR, BMI, and fat% (P= <0.001) for both men and women. The p-value for subjective sleep quality, sleep latency, habitual sleep efficiency, sleep disturbances, and daytime dysfunction appears to be less than 0.05 which shows that it is significant. The daily consumption of various beverages listed above with a comparison of pre-post intervention, which shows that only for kada the p-value is 0.001 which is less than 0.05 hence it seems significant. The p-value for people with no comorbidity appears less than 0.05, indicating it is significant. majority of participants (12 %) with diabetes took comparatively longer than the participants suffering from other comorbidities followed by Hypertension (7 %), Hyperthyroidism (4 %), Hypothyroidism, and polycystic ovarian disease (PCOD) (3 % each) respectively.

Conclusion

In the present study, we provided survey data about the key aspects of the nutritional management of COVID-19 (pre-and-post), based on the current knowledge.

In recent times, we have witnessed a growing interest in vegetarian diets among the sports community. Athletes follow these dietary patterns for various reasons, including health benefits, sustainability, animal welfare and spirituality. However, because some studies have shown a negative effect of vegetarian diets on physical performance, there is a prevailing concern that a vegetarian diet may not fully meet athletes'nutritional requirements. Therefore, in this narrative review, we comprehensively examine the nutritional considerations relevant to athletes adhering to various types of vegetarian diets. In particular, we analyze the evidence regarding energy, macronutrients, micronutrients and creatine. The current evidence suggests that well-planned vegetarian diets, which may include eggs and dairy, are suitable for meeting the specific requirements of athletes and allow performance levels similar to those observed in athletes with other well-planned dietary patterns. In addition, there is evidence highlighting the potential of vegetarian diets in reducing the risk of non-communicable diseases such as cardiovascular disease, type 2 diabetes and some cancers. However, vegetarian athletes need to be mindful of their dietary planning to avoid deficiencies in certain critical nutrients present in lower concentrations in vegetarian diets or whose absorption is hindered by certain chemical compounds found in plants. Thus, further research is needed in order to clarify some aspects of vegetarian nutrition in athletes.

Background and aims

Despite its prevalence in the media, uncertainty surrounds the effectiveness of the paleolithic diet for the management of type 2 diabetes. Our scoping review aims to assess the efficacy of the paleolithic diet in managing body weight, glycemia, and lipidemia in comparison to recommended diets for type 2 diabetes management.

Methods and results

We conducted searches in Medline, Scopus, Embase, and CINAHL to identify pertinent randomized controlled trials up to Mar 2024. Our review incorporated 3 reports from 2 randomized controlled trials involving 37 Caucasian participants. Comparative analysis of the paleolithic diet against recommended diabetic diets revealed encouraging outcomes, manifesting in the improvement of glycemic and lipid profiles in type 2 diabetes patients. However, there were mixed results in high-density lipoprotein cholesterol and triglyceride levels.

Conclusions

Paleolithic diet hints at potentially favorable effects on type 2 diabetes, but evidence is severely limited. Rigorously designed larger trials evaluating distinct paleolithic diets on clinical outcomes while monitoring safety and feasibility are critically needed before making recommendations.

Registration

This scoping review has been registered at https://www.crd.york.ac.uk/prospero as CRD42021226788.

Objectives

This study aimed to assess the nutritional status and dietary fatty acid intake among children from low-income households in Sabah, Malaysia.

Methods

This cross-sectional study was conducted from December 2022 to February 2023 in Kota Kinabalu and Tawau. A total of 182 children aged 5–12 years from low-income households (less than RM 4850 per month) were recruited. Anthropometric measurements included body weight, height, and body mass index. Dietary intakes were assessed using a 24-h diet recall and the fatty acid (FA) intakes were analyzed using a database with FA content for local foods.

Results

The mean age of children was 8.8 ± 1.8 years, with a majority being girls (53.8%) and of Bajau ethnicity (53.3%). Based on the anthropometric measurements, 16.5% of children were stunted, 7.1% were thin, and 21.4% were overweight or obese. Intakes of total fat, saturated fatty acids (SFA), monounsaturated fatty acids (MUFA), polyunsaturated fatty acids (PUFA), and trans fatty acids as a percentage of total energy were 29.3%, 12.3%, 12.6%, 4.0%, and 0.05%, respectively. 77.5% of children exceeded the recommendation for SFA and 63.2% of children did not meet the recommendation for n-3 PUFA. All children did not meet the recommendation for ⍺-linolenic. Children from Tawau had greater consumption of n-3 PUFA (p < 0.001) while children from Kota Kinabalu had greater intakes of total fat (p = 0.020), MUFA (p = 0.005), n-6 PUFA (p = 0.015), and trans fatty acid (p = 0.001). None of the dietary fatty acids was associated with anthropometric indices.

Conclusions

There was a high prevalence of stunting and overweight or obesity among children from low-income households in Sabah. Most of the children failed to meet the recommendations for SFA and n-3 PUFAs. These findings indicate a compelling need for the implementation of nutritional strategies to enhance adherence to dietary recommendations for fatty acids.