Frank T Wieringa
Biographic Data
| ID | 5457308 |
|---|---|
| NAME | Frank T Wieringa |
| GIVEN NAMES | Frank T |
| FAMILY NAME | Wieringa |
| SIGNATURE | WIERINGA F T |
| AFFILIATIONS | Institut de Recherche pour le Développement |
| ORCID | 0000-0002-6010-355X |
| VERIFIED | Yes |
| TOTAL WORKS | 20 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 20 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2010 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 0 |
Language processing in breastfed infants at risk of thiamine deficiency benefits from maternal thiamine supplementation
In a double-blind, randomized controlled trial, we investigated relationships between infants' exposure to thiamine and their language-processing ability. Three hundred thirty-five lactating Cambodian mothers of 161 female/174 male infants received either 0, 1.2, 2.4, or 10 mg of thiamine daily, from 2 to 24 weeks postpartum. We assessed infants' language processing at 24 weeks via the infant-directed speech (IDS) task, measuring attentional enha…
Comparing two simplified questionnaire‐based methods with 24‐h recalls for estimating fortifiable wheat flour and oil consumption in Mandaluyong City, Philippines
Information on fortifiable food consumption is essential to design, monitor and evaluate fortification programmes, yet detailed methods like 24-h recalls (24HRs) that provide such data are rarely conducted. Simplified questionnaire-based methods exist but their validity compared with 24HRs has not been shown. We compared two simplified methods (i.e., a household food acquisition and purchase questionnaire [FAPQ] and a 7-day semiquantitative food …
Restricting diet for perceived health benefit
Food taboos encompass food restrictions practiced by a group that go beyond individual preferences. During pregnancy and lactation, food taboos may contribute to inadequate nutrition and poor maternal and infant health. Restriction of specific fish, meat, fruits and vegetables is common among peripartum women in many Southeast Asian countries, but data from Cambodia are lacking. In this mixed-methods study, 335 Cambodian mothers were asked open-e…
Micronutrient deficiencies among preschool-aged children and women of reproductive age worldwide
BACKGROUND: Micronutrient deficiencies compromise immune systems, hinder child growth and development, and affect human potential worldwide. Yet, to our knowledge, the only existing estimate of the global prevalence of micronutrient deficiencies is from over 30 years ago and is based only on the prevalence of anaemia. We aimed to estimate the global and regional prevalence of deficiency in at least one of three micronutrients among preschool-aged…
Termite mounds in Cambodian paddy fields. Are they always kept for improving soil quality
lt;p> Abstract The utilization of termite mounds for the improvement of soil fertility is a worldwide practice and usually explained by the specific properties of this biogenic material. In Cambodia, farmers also use termite mound soils as amendments with the aim to improve the fertility of paddy fields. The first objective of this study was, therefore, to describe the physical and chemical properties of this material and, consequently, to determ…
Micronutrient intake of children in Ghana and Benin
We estimated how micronutrient needs of young children, aged 6-24 months were covered by the standard (traditional) diets in Ghana and Benin, and the contributions of partial breastfeeding and national nutrition programs aimed at improving micronutrient status to overall micronutrient intakes. Estimates of micronutrient intake from standard diets were based on previous surveys, using the food composition table of West Africa (INFOOD). Recommended…
Caretakers' perceptions and willingness‐to‐pay for complementary food in urban and rural Cambodia
Inadequate child nutrition during the first '1000 days' is widespread in Cambodia, resulting in a high prevalence of child malnutrition. Access to processed complementary food in packages (PCFP) may support caretakers in improving diet of young children. This study aimed to evaluate the caretakers' preferences and willingness-to-pay (WTP) for PCFP in Cambodia. The study was conducted in urban and rural settings, involving 520 caretakers with chil…
Reducing malnutrition in Cambodia. A modeling exercise to prioritize multisectoral interventions
Undernutrition is a major contributor to child morbidity and mortality and poses a large burden to the economy, in Cambodia. This study explored factors contributing to child stunting and wasting and their regional inequalities among 1,938 Cambodian children aged 6-23.9 months. Data were drawn from a longitudinal study (year 2017) conducted in six districts of two north-eastern provinces and the capital and used as cross-sectional. Socio-demograp…
Water quality for young children in Cambodia—High contamination at collection and consumption level
Unsafe drinking water is a leading cause of child morbidity, especially among young children in low-income settings. Safe water consumption requires high-quality water available at its source and at point of use. We examined the quality of drinking water at point of collection and point of use in 796 households in three provinces, in Cambodia. Microbiological testing for coliform and Escherichia coli contamination was conducted for samples collec…
Maternal mid‐upper arm circumference during pregnancy and linear growth among Cambodian infants during the first months of life
Stunting prevalence among children under 5 years remains high in Cambodia, affecting about one-third of children. In most low- and middle-income countries, linear growth faltering of young children starts in the womb. The 1,000-days window of opportunity to improve child nutritional status includes pregnancy, as maternal nutritional status is an important determinant of birthweight and child development. In Cambodia, nutritional status of pregnan…
Whole-blood Pufa and associations with markers of nutritional and health status in acutely malnourished children in Cambodia
Objective: To measure fatty acid composition, particularly whole-blood PUFA content, in acutely malnourished children and identify associations with markers of nutritional and health status. Design: PUFA were assessed in dried blood spots obtained from a cross-sectional study. Nutritional and health status were assessed by anthropometry, haemoglobinopathies, inflammation and blood counts. Setting: Cambodia. Participants: The study was conducted w…
Acceptability of locally‐produced Ready‐to‐Use Supplementary Food (Rusf) for children under two years in Cambodia
In Cambodia, existing food products for treating or preventing undernutrition have met with limited success. Therefore, in 2014, alternative ready-to-use foods were developed. This trial aimed to assess the acceptability of the novel ready-to-use supplementary food (RUSF) as a snack or mixed with borbor (white rice porridge), compared with corn-soy blend plus plus (CSB++) and borbor fortified with micronutrient powder (MNP). The nonblinded, rando…
Effectiveness of a locally produced ready‐to‐use supplementary food in preventing growth faltering for children under 2 years in Cambodia
This cluster randomised controlled trial tested the effectiveness of a locally produced, fish-based, ready-to-use supplementary food (RUSF) to prevent growth faltering (decline in z-scores). Cambodian infants (n= 485), aged 6 to 11 months, were randomised by site to receive the RUSF, Corn-Soy Blend++ (CSB++), micronutrient powders (MNP), or no supplement (control). The intervention was for 6 months. In unadjusted analysis, the control group had s…
Driving Policy Change to Improve Micronutrient Status in Women of Reproductive Age and Children in Southeast Asia
Micronutrient status of populations and preventive nutrition interventions in South East Asia
Realistic Food-Based Approaches Alone May Not Ensure Dietary Adequacy for Women and Young Children in South-East Asia
Multi-criteria Mapping of Stakeholders’ Viewpoints in Five Southeast Asian Countries on Strategies to Reduce Micronutrient Deficiencies Among Children and Women of Reproductive Age
Effect of multi-micronutrient-fortified rice on cognitive performance depends on premix composition and cognitive function tested
Objective Even though current policy is strongly focused on the crucial first ‘1000 days’, it might be still possible to enhance cognitive function during the pre-adolescent and adolescent years by improving micronutrient status. In Cambodia, nutritional status is poor. Provision of rice fortified with micronutrients through a school meal programme (SMP) could be a cost-effective strategy to help improve health and school performance. The present…
Subclinical inflammation affects iron and vitamin A but not zinc status assessment in Senegalese children and Cambodian children and women
Objective To assess the impact of the acute-phase response (APR) during inflammation on Fe, Zn and vitamin A biomarkers to allow accurate evaluation of micronutrient status in populations. Design Ferritin (FER), soluble transferrin receptor (TfR), retinol-binding protein (RBP), Zn, α 1 -acid glycoprotein and C-reactive protein concentrations were measured. Correction factors (CF) for each biomarker were calculated as the ratio for groups at diffe…
Adjusting plasma ferritin concentrations to remove the effects of subclinical inflammation in the assessment of iron deficiency
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Adjusting plasma ferritin concentrations to remove the effects of subclinical inflammation in the assessment of iron deficiency
Micronutrient status of populations and preventive nutrition interventions in South East Asia
Realistic Food-Based Approaches Alone May Not Ensure Dietary Adequacy for Women and Young Children in South-East Asia
Multi-criteria Mapping of Stakeholders’ Viewpoints in Five Southeast Asian Countries on Strategies to Reduce Micronutrient Deficiencies Among Children and Women of Reproductive Age
Effect of multi-micronutrient-fortified rice on cognitive performance depends on premix composition and cognitive function tested
Objective Even though current policy is strongly focused on the crucial first ‘1000 days’, it might be still possible to enhance cognitive function during the pre-adolescent and adolescent years by improving micronutrient status. In Cambodia, nutritional status is poor. Provision of rice fortified with micronutrients through a school meal programme (SMP) could be a cost-effective strategy to help improve health and school performance. The present…
Subclinical inflammation affects iron and vitamin A but not zinc status assessment in Senegalese children and Cambodian children and women
Objective To assess the impact of the acute-phase response (APR) during inflammation on Fe, Zn and vitamin A biomarkers to allow accurate evaluation of micronutrient status in populations. Design Ferritin (FER), soluble transferrin receptor (TfR), retinol-binding protein (RBP), Zn, α 1 -acid glycoprotein and C-reactive protein concentrations were measured. Correction factors (CF) for each biomarker were calculated as the ratio for groups at diffe…
Acceptability of locally‐produced Ready‐to‐Use Supplementary Food (Rusf) for children under two years in Cambodia
In Cambodia, existing food products for treating or preventing undernutrition have met with limited success. Therefore, in 2014, alternative ready-to-use foods were developed. This trial aimed to assess the acceptability of the novel ready-to-use supplementary food (RUSF) as a snack or mixed with borbor (white rice porridge), compared with corn-soy blend plus plus (CSB++) and borbor fortified with micronutrient powder (MNP). The nonblinded, rando…
Effectiveness of a locally produced ready‐to‐use supplementary food in preventing growth faltering for children under 2 years in Cambodia
This cluster randomised controlled trial tested the effectiveness of a locally produced, fish-based, ready-to-use supplementary food (RUSF) to prevent growth faltering (decline in z-scores). Cambodian infants (n= 485), aged 6 to 11 months, were randomised by site to receive the RUSF, Corn-Soy Blend++ (CSB++), micronutrient powders (MNP), or no supplement (control). The intervention was for 6 months. In unadjusted analysis, the control group had s…
Driving Policy Change to Improve Micronutrient Status in Women of Reproductive Age and Children in Southeast Asia
Reducing malnutrition in Cambodia. A modeling exercise to prioritize multisectoral interventions
Undernutrition is a major contributor to child morbidity and mortality and poses a large burden to the economy, in Cambodia. This study explored factors contributing to child stunting and wasting and their regional inequalities among 1,938 Cambodian children aged 6-23.9 months. Data were drawn from a longitudinal study (year 2017) conducted in six districts of two north-eastern provinces and the capital and used as cross-sectional. Socio-demograp…
Water quality for young children in Cambodia—High contamination at collection and consumption level
Unsafe drinking water is a leading cause of child morbidity, especially among young children in low-income settings. Safe water consumption requires high-quality water available at its source and at point of use. We examined the quality of drinking water at point of collection and point of use in 796 households in three provinces, in Cambodia. Microbiological testing for coliform and Escherichia coli contamination was conducted for samples collec…
Maternal mid‐upper arm circumference during pregnancy and linear growth among Cambodian infants during the first months of life
Stunting prevalence among children under 5 years remains high in Cambodia, affecting about one-third of children. In most low- and middle-income countries, linear growth faltering of young children starts in the womb. The 1,000-days window of opportunity to improve child nutritional status includes pregnancy, as maternal nutritional status is an important determinant of birthweight and child development. In Cambodia, nutritional status of pregnan…
Whole-blood Pufa and associations with markers of nutritional and health status in acutely malnourished children in Cambodia
Objective: To measure fatty acid composition, particularly whole-blood PUFA content, in acutely malnourished children and identify associations with markers of nutritional and health status. Design: PUFA were assessed in dried blood spots obtained from a cross-sectional study. Nutritional and health status were assessed by anthropometry, haemoglobinopathies, inflammation and blood counts. Setting: Cambodia. Participants: The study was conducted w…
Caretakers' perceptions and willingness‐to‐pay for complementary food in urban and rural Cambodia
Inadequate child nutrition during the first '1000 days' is widespread in Cambodia, resulting in a high prevalence of child malnutrition. Access to processed complementary food in packages (PCFP) may support caretakers in improving diet of young children. This study aimed to evaluate the caretakers' preferences and willingness-to-pay (WTP) for PCFP in Cambodia. The study was conducted in urban and rural settings, involving 520 caretakers with chil…
Micronutrient deficiencies among preschool-aged children and women of reproductive age worldwide
BACKGROUND: Micronutrient deficiencies compromise immune systems, hinder child growth and development, and affect human potential worldwide. Yet, to our knowledge, the only existing estimate of the global prevalence of micronutrient deficiencies is from over 30 years ago and is based only on the prevalence of anaemia. We aimed to estimate the global and regional prevalence of deficiency in at least one of three micronutrients among preschool-aged…
Termite mounds in Cambodian paddy fields. Are they always kept for improving soil quality
lt;p> Abstract The utilization of termite mounds for the improvement of soil fertility is a worldwide practice and usually explained by the specific properties of this biogenic material. In Cambodia, farmers also use termite mound soils as amendments with the aim to improve the fertility of paddy fields. The first objective of this study was, therefore, to describe the physical and chemical properties of this material and, consequently, to determ…
Micronutrient intake of children in Ghana and Benin
We estimated how micronutrient needs of young children, aged 6-24 months were covered by the standard (traditional) diets in Ghana and Benin, and the contributions of partial breastfeeding and national nutrition programs aimed at improving micronutrient status to overall micronutrient intakes. Estimates of micronutrient intake from standard diets were based on previous surveys, using the food composition table of West Africa (INFOOD). Recommended…
Comparing two simplified questionnaire‐based methods with 24‐h recalls for estimating fortifiable wheat flour and oil consumption in Mandaluyong City, Philippines
Information on fortifiable food consumption is essential to design, monitor and evaluate fortification programmes, yet detailed methods like 24-h recalls (24HRs) that provide such data are rarely conducted. Simplified questionnaire-based methods exist but their validity compared with 24HRs has not been shown. We compared two simplified methods (i.e., a household food acquisition and purchase questionnaire [FAPQ] and a 7-day semiquantitative food …
Restricting diet for perceived health benefit
Food taboos encompass food restrictions practiced by a group that go beyond individual preferences. During pregnancy and lactation, food taboos may contribute to inadequate nutrition and poor maternal and infant health. Restriction of specific fish, meat, fruits and vegetables is common among peripartum women in many Southeast Asian countries, but data from Cambodia are lacking. In this mixed-methods study, 335 Cambodian mothers were asked open-e…
Language processing in breastfed infants at risk of thiamine deficiency benefits from maternal thiamine supplementation
In a double-blind, randomized controlled trial, we investigated relationships between infants' exposure to thiamine and their language-processing ability. Three hundred thirty-five lactating Cambodian mothers of 161 female/174 male infants received either 0, 1.2, 2.4, or 10 mg of thiamine daily, from 2 to 24 weeks postpartum. We assessed infants' language processing at 24 weeks via the infant-directed speech (IDS) task, measuring attentional enha…
Medicine (19 works) · Child Nutrition and Water Access (17 works) · Environmental health (15 works) · Micronutrient (9 works) · Population (6 works) · Global Maternal and Child Health (5 works) · Pediatrics (5 works) · Biology (4 works) · Birth, Development, and Health (4 works) · Internal Medicine (4 works)