Habitual dietary protein intake affects body iron status in Japanese female college rhythmic gymnasts: a follow-up study

Animal source food consumption and anaemia among school adolescent girls in Silti District, Central Ethiopia: a public health perspective

Animal source foods (ASFs) are diverse and heterogeneous, including unprocessed red meat, processed meat, poultry, eggs, seafood, milk, cheese, and yoghurt. It is essential for preventing malnutrition and its consequences among vulnerable populations, including infants, young children, adolescents, women of reproductive age, and pregnant and lactating women. Understanding the intakes of ASF among adolescents and associated factors is critical for establishing priorities to promote its consumption and enhance growth and development during this period. Consequently, the purpose of the current study is to examine the current levels of not consuming ASF among school-aged adolescent girls and the relationship between anaemia and not consuming ASF. A facility-based cross-sectional study design was conducted among 516 school adolescent girls in Silti District, Central Ethiopia, spanning from October 2 to 20, 2023. Data were entered into Epi-data 3.1 and exported to SPSS version 25 for further analysis. Adjusted odds ratios, along with their corresponding 95% confidence intervals, were calculated to examine the association between not consuming ASF and anaemia status after adjusting for age, residence, menstrual status, and morbidity. Statistical significance was defined as a p-value less than 0.05 in the final model. In this study, the prevalence of not consuming any form of ASF was 51.1% (95 CI: 44.6%-53.2%) and the prevalence of anaemia was 29% (95% CI: 25.2, 33.3). Moreover, unlikely consumption of ASF was significantly associated with anaemia (AOR = 3.2, 95% CI:2, 5.1) after adjusting for age, place of residence, experience of morbidity symptoms and menstrual status. The current study found a significant prevalence of adolescent girls in the area not consuming ASF while attending school. Moreover, the prevalence of anaemia was moderate. Unlikely consumption of ASF was significantly associated with anaemia. Hence, enhancing ASF consumption is one of the key actions to fight against anaemia.

Iron- and protein rich diets may boost hemoglobin levels among informal electronic waste recyclers exposed to metals at Agbogbloshie, Ghana

While human exposure to metals may play a role in the pathogenesis of anemia, consumption of balanced diets may boost blood hemoglobin (Hb) levels in humans. Although informal electronic waste (e-waste) recycling processes have recently drawn attention as an important source of pollution, there is almost no empirical evidence on the relationship between diet, metals exposure and anemia among e-waste recyclers. Therefore, we evaluated possible ameliorating effects of diet on metal exposure related anemia, as measured by Hb levels of e-waste recyclers and a reference population in Ghana. This repeated measure study used data collected from e-waste recyclers (n=142) and a reference population (n=65) between March 2017 and October 2018. Stored whole blood samples were analyzed for the following metals; Cd, Pb, Rb, Tb, Tl, and Eu. Next, Hb levels were analysed using the URIT-810® semiautomatic biochemistry analyzer. Furthermore, a 48-hour dietary recall questionnaire was administered to assess dietary intake parameters such as protein, folate, carbohydrates, Fe, Ca, Mg, Se, Zn, and Cu. Ordinary regression models were used to estimate joint effects of metals and nutrients on Hb levels. At baseline, the mean Hb was lower among recyclers (12.99 ± 3.17 g/dL) than the reference group (13.02 ±2.37 g/dL). Blood Pb, Cd, Rb, Eu and Tb were associated with significant decreases in Hb levels of e-waste recyclers. Dietary intake of proteins and Fe was associated with concomitant increase in Hb levels of both groups as well as when analysis was restricted to recyclers. Despite the high exposure of e-waste recyclers to a myriad of metals, consumption of Fe-rich diets appears to ameliorate anemia and improved Hb levels (β=0.229; 95% CI: 0.013, 0.445; p=0.04). Therefore, the consumption of Fe and protein-rich foods may boost blood Hb levels in e-waste recyclers, even though exposure to high levels of metals is a predictor of anemia among this worker-group.

Lower calcium and iron intake in adolescent gymnasts: A case of concern for youth sports nutrition

OBJECTIVES

Diet is important for the appropriate development and maturation of young amateur athletes. The aim of this study was to determine whether young gymnasts were consuming adequate amounts of nutrients, particularly calcium and iron.

METHODS

This cross-sectional survey was conducted in Portugal's Almada and Lisbon regions in 2020. To determine if participants' diet was adequate, weight, height, and skinfold measurements were taken. Dietary consumption was examined using two 24-h recalls. We collected data from 66 participants (60% females, 12-18 y of age), of whom 82% had normal weight and 39% had ideal body fat.

RESULTS

The daily total energy intake (TEI) was1605 ± 601 kcal. Of the TEI, 19%, 31%, and 50% were comprised of protein, fat, and carbohydrates, respectively. The most often consumed protein sources were poultry and ultra-processed meat products (52% and 45%, respectively). The average daily consumption of calcium and iron was 626 ± 293 and 9 ± 3 mg, respectively. Only 2 of the 66 participants had calcium intake within recommended levels, and 1of 5 had iron intake within recommended levels, the percentage of which was lower in girls than boys (7.5% versus 38.5%, P < 0.05).

CONCLUSIONS

Despite having a sufficient macronutrient distribution, Portuguese gymnasts consume a high amount of ultra-processed items and a low amount of calcium and iron. The low proportion of female gymnasts with adequate iron consumption is cause for worry in sports nutrition.

Iron Deficiency Anemia and Associated Factors Among Adolescent Girls and Women in a Rural Area of Jatinangor, Indonesia

Background

Iron deficiency anemia is a common problem among adolescent girls and women, with significant consequences on personal health. One of the causes of iron deficiency anemia is inadequate nutritional intake. This study explores iron-deficiency anemia and associated factors among adolescent girls and women in a rural area of Jatinangor, Indonesia.

Methods

A cross-sectional study was conducted with 95 adolescent girls and 85 women between April and November 2018. Cluster random sampling was used to select the participants from seven villages in the Jatinangor district. After obtaining informed consent, we collected sociodemographic data, menstrual histories, and related data, including nutritional intake using 24-hour dietary recall. Anthropometrics were gathered to determine the body mass Index (BMI), and venous blood samples were analyzed for complete blood count and hemoglobin levels. Descriptive statistics followed by bivariate and multivariable logistic regression were used to identify anemia-associated factors.

Results

The prevalence of iron deficiency anemia among the girls was 21.1% and 9.4% among women, with an average hemoglobin level in adolescents of 10.75 g/dL (± 0.79) and in adults 11.20 g/dL (± 0.61), whereas MCV was 74.49±8.22 fL in adolescents and 7.61±8.62 fL in adults. The majority of our samples were not stunted in growth and were also within a normal weight range. Multivariate logistic regression analysis showed that protein intake (OR=0.25; 95% CI 0.11–0.58) was a positively associated factor with anemia.

Conclusion

The prevalence of iron-deficiency anemia in this study represents a mild public health problem in the study sample. Based on the hemoglobin level, anemia, can be classified as moderate in adolescents and mild in adults. Low levels of MCH indicate iron-deficiency anemia. Sufficient protein intake did not prevent anemia due to macronutrient and micronutrient intake.

The association between low protein diet and body composition, muscle function, inflammation, and amino acid-based metabolic profile in chronic kidney disease stage 3-5 patients

BACKGROUND

Chronic kidney disease (CKD) is a global burden in the world. Low protein diet (LPD) recommendation is suggested in CKD patients to avoid or defer dialysis initiation and slow down CKD progression. However, nutritional imbalance and protein energy wasting represent key worries. The amino acid-based metabolic profile may provide a sensitive biomarker to evaluate CKD patients' nutrition status with LPD recommendations.

METHODS

We conducted a cross-sectional study in CKD stage 3-5 patients who had received LPD recommendation to evaluate the association between LPD and traditional markers (including plasma levels of albumin, pre-albumin, transferrin, total iron-binding capacity), inflammation markers (including peripheral leukocyte count and plasma levels of high-sensitivity C-reactive protein), body composition, muscle strength, and physical function, and novel nutrition markers (including amino acid-based metabolic profile) in CKD stage 3-5 patients.

RESULTS

In our study CKD stage 3-5 patients with the total number of 73, the mean age was around 71 ± 10 years old. The mean daily protein intake (DPI) was around 0.9 ± 0.3 g/kg/day and 25 (34%) patients met the recommended goal of DPI <0.8 g/kg/day. The mean daily calorie intake (DCI) was around 23 ± 6 kcal/kg/day, with only 11 (15%) patients met the recommend DCI with 30-35 kcal/kg/day. Compared to CKD patients with non-LPD, patients with LPD had significantly lower hemoglobin and albumin levels, shorter 6-min walking distance (6MWD), and lower leucine levels. Multivariable analysis found that lower hemoglobin and leucine levels, and shorter 6MWD were negatively and independently associated with LPD (all p < 0.05). Then ROC curve analysis found that the optimal cut-off value of leucine plasma levels was 95.5 μM with 60% sensitivity and 71% specificity to predict those CKD patients with LPD with the area under the curve of 0.646 (95% CI: 0.512-0.780).

CONCLUSION

LPD attainment was noted in 34% patients and most of CKD stage 3-5 patients (around 85%) had inadequate daily calorie intake although receiving standard dietary counseling routinely. A low protein diet and inadequate daily calorie intake in CKD patients were associated with shorter 6MWD, and lower hemoglobin and leucine levels. Plasma leucine levels lower than 95.5 μM may be a herald for muscle wasting and malnutrition in these CKD stage 3-5 patients with inadequate calorie intake.