Publications by authors named "Ivonne Ramirez-Silva"

Current international infant and young child (IYC) feeding recommendations consider nutrition and health but not environmental impacts. Only a handful of countries have dietary guidelines that provide quantitative recommendations for food groups of environmental concern. This study aimed to perform a narrative review of the environmental impacts of commercial milk formula compared with breastfeeding and to analyze the degree to which current country-specific IYC feeding recommendations are aligned with sustainable dietary targets.

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Purpose: The relationship between dietary zinc (Zn) intake, metabolic diseases, and telomere length has been little explored in the children population. This observational cross-sectional study assesses the association between obesity (OB), cardiometabolic traits, telomere length, and dietary Zn intake in children with normal weight (NW) and OB from Mexico City.

Methods: Anthropometric data, blood pressure, biochemical measurements, the homeostatic model assessment of insulin resistance (HOMA-IR) and leucocyte telomere length (determined by quantitative-PCR) were analyzed in 171 children with NW and 172 with OB.

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Article Synopsis
  • Frequent consumption of ultra-processed foods (UPFs) during pregnancy is associated with a higher intake of added sugars, fats, and sodium, which can negatively impact maternal and child health.
  • A study analyzed calorie contributions from UPFs based on pre-pregnancy body mass index (BMI) and hemoglobin (Hb) status using dietary intake records from pregnant participants.
  • Results showed that UPFs contributed around 27% of total energy intake across the second and third trimesters, with higher percentages in women with obesity and lower Hb levels.
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Background/objectives: Obesity prevalence in Mexican children has increased rapidly and is among the highest in the world. We aimed to estimate the longitudinal association between nonessential energy-dense food (NEDF) consumption and body mass index (BMI) in school-aged children 5 to 11 years, using a cohort study with 6 years of follow-up.

Subjects/methods: We studied the offspring of women in the Prenatal omega-3 fatty acid supplementation, child growth, and development (POSGRAD) cohort study.

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Introduction: changes in cognitive performance and memory of older adults (OA) can interfere in their reporting their diet. Objective: to evaluate the impact of memory bias in dietary estimation between OA and their primary caregivers (PC) through the food frequency questionnaire (FFQ) for Mexican OA and weighed food records (WFR). Methods: the present analysis uses the estimated dietary information based on the response provided by 51 older adults (OA) and their primary caregivers (PC) from the validation study of the FFQ for Mexicans OA was conducted during lockdowns for COVID-19.

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Objetivo: Estimar prevalencias de indicadores de prácticas de alimentación infantil en menores de 24 meses en México. Material y métodos. Análisis de la Encuesta Nacional de Salud y Nutrición Continua 2021 y 2022 (Ensanut Continua 2021 y 2022) en mujeres de 14-59 años y sus hijos/as menores de 24 meses (<24 meses).

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Objetivo: Describir la tendencia en las prácticas de alimentación infantil en México antes y después de la pandemia por Covid-19, usando datos de la Encuesta Nacional de Salud y Nutrición (Ensanut) 2012, 2018-19, 2021 y 2022. Material y métodos. Población: mujeres 12-59 años y sus hijos/as < 24 meses.

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Evidence about the association between breastfeeding and its duration with growth, appetite and satiety indicators, and adiposity in low and middle-income countries facing nutritional transition is scarce. The aim of this study was to evaluate the association between longitudinal patterns of breastfeeding (exclusive [EBF] and continued [CBF]) with adiposity and growth, and the mediating role of appetite and satiety indicators in these associations in Mexican children during the first 2 years of life. Information from 378 mother-child pairs from the MAS-Lactancia birth cohort was analysed.

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Objective: To estimate energy contribution (EC) of food groups in 2016, to compare consumption against Mexican Dietary Guidelines, and to examine changes in EC from 2012 to 2016.

Materials And Methods: We analyzed 24-hour dietary recalls from the 2012 and 2016 National Health and Nutrition Surveys (Ensanut). Foods and beverages were clas-sified into eight food groups: cereals, legumes, dairy, meats, fruit and vegetables, fats and oils, sugar-sweetened beverages, and high in saturated fat and added sugar (HSFAS) products.

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Introduction: there is scarce evidence of the effects of obesity and gestational weight- gain (GWG) on hemoglobin (Hb) levels in pregnancy. Little is known about the implications in offspring when pregnant mothers present with both at delivery. Aim: to identify if pre-pregnancy body mass index (BMI) and GWG are associated with Hb levels at pregnancy third trimester; and identify if the BMI status plus anemia at delivery could influence offspring anthropometry.

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Globally, the prevalence of overweight and obesity, including among pregnant women, has substantially increased in the past three decades. This has been fueled by, among other factors, an increase in the consumption of high energy-dense foods and a decrease in physical activity. Additionally, global prevalence of anemia among pregnant women remains a public health concern.

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Complementary feeding practices and corresponding parental feeding styles influence nutritional status in later stages of childhood. Findings on the association of these variables with infant growth remain inconsistent; in Mexico, a research gap exists in this area. (1) To characterize parental feeding styles and complementary feeding practices, and (2) to evaluate the association of parental feeding styles with complementary feeding practices and infant growth at 6 and 9 months of age.

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Perceived changes in diet quality, emotional eating, physical activity, and lifestyle were evaluated in a group of Mexican adults before and during COVID-19 confinement. In this study, 8289 adults answered an online questionnaire between April and May 2020. Data about sociodemographic characteristics, self-reported weight and height, diet quality, emotional eating, physical activity, and lifestyle changes were collected.

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Introduction: The prevalence of childhood obesity has risen dramatically in recent years. A proportion of this burden has been attributed to factors that occur during the first 1000 days of life such as genetic predisposition, breast feeding and complementary feeding. Although the mechanisms by which these factors affect weight and adiposity are less well understood, appetite and satiety regulation may be a key to understanding them.

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Background: Variability in the FADS2 gene, which codifies the Delta-6 Desaturases and modulates the conversion of essential n-3 and n-6 fatty acids into long-chain polyunsaturated fatty acids, might modify the impact of prenatal supplementation with n-3 docosahexaenoic acid (DHA) on neurodevelopment.

Objective: To assess if maternal FADS2 single nucleotide polymorphisms (SNPs) modified the effect of prenatal DHA on offspring development at 5 years.

Design: We conducted a post-hoc interaction analysis of the POSGRAD randomized controlled trial (NCT00646360) of prenatal supplementation with algal-DHA where 1094 pregnant women originally randomized to 400 mg/day of preformed algal DHA or a placebo from gestation week 18-22 through delivery.

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Consumption of foods high in energy, sugar, fat, and salt contributes to the increase in body mass index and the prevalence of overweight and obesity in children. Mexico implemented an 8% tax to non-essential energy-dense foods (NEDF) in 2014 as part of a national strategy to reduce obesity. We modeled the potential effect of the NEDF tax on body mass index and overweight and obesity in Mexican children (6-17 years).

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Objective: To describe the consumption of recommended and non-recommended food groups for daily consumption, and their association with sociodemographic characteristics in Mexican population.

Materials And Methods: Infor-mation from the 2018-19 National Health and Nutrition Survey from Mexico, using a 7-day food consumption fre-quency questionnaire, in children and adults. We estimated consumption of seven food groups in quartiles by age group.

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There is limited evidence about the inflammatory potential of diet in children. The aim of this study was to evaluate the association between the Children's Dietary Inflammatory Index (C-DII) from 5 to 11 years with adiposity and inflammatory biomarkers in Mexican children. We analyzed 726 children from a birth cohort study with complete dietary information and measurements to evaluate adiposity at 5, 7 and 11 y and 286 children with IL-6, hsCRP, leptin and adiponectin information at 11 y.

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Objective: To estimate the usual intake and the prevalence of inadequacy of selected nutrients in the Mexican population and the potential effect that the nutrient retention factors (NRF) could have on these estimates. Likewise, document the methodology used in the analysis of the 24 hours of the mid-way National Health and Nutrition Survey 2016 (Ensanut MC 2016).

Materials And Methods: Dietary information from the Ensanut MC 2016 was analyzed with and without the use of NRFs.

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Objective: To evaluate the associations of pregestational BMI, gestational weight gain (GWG) and breast-feeding at 1 month postpartum with four patterns of weight change during the first year after delivery: postpartum weight retention (PPWR), postpartum weight gain (PPWG), postpartum weight retention + gain (PPWR + WG) and return to pregestational weight.

Design: In this secondary analysis of a prospective study, we categorised postpartum weight change into four patterns using pregestational weight and weights at 1, 6 and 12 months postpartum. We evaluated their associations with pregestational BMI, GWG and breast-feeding using multinomial logistic regression.

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Background: Mexicans' adherence to food group's dietary recommendations is low and an inaccurate self-perception of dietary quality might perpetuate this low adherence. Our aim was to compare the intake and the adherence to the dietary recommendations for several food groups, subgroups, and to an overall Mexican Diet Quality Index (MxDQI), among those that perceived their diet as healthy vs. those that did not.

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Objective: To identifiy the energy contribution (EC) of the food consumed in those older than five years and by sociodemographic characteristics in Mexican population.

Materials And Methods: We analyzed data from 24-hour recalls from 7 983 subjects ≥5 years included in the Encuesta Nacional de Salud y Nutrición 2012 (Ensanut 2012). The EC to total daily energy intake of 50 foods allocated to eight food groups at national level and stratified by age, area of residence, region and socioeconomic level was estimated.

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Article Synopsis
  • In Mexico, 30% of children are overweight, and this study investigates how fructose intake and the composition of gut microbiota relate to obesity and metabolic risks in kids aged 6-12.
  • Researchers analyzed data from 1,087 children, finding that higher fructose intake and certain gut bacteria levels correlated with increased body mass index (BMI) and waist circumference (WC).
  • The findings suggest that high fructose intake and gut microbiota may contribute to childhood obesity and related health issues, implying that managing these factors could improve children's health outcomes.
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Background: Rapid early weight gain has been associated with increased risk of obesity and cardiometabolic alterations, but evidence in low and middle-income countries is inconclusive.

Objective: We evaluated the relation between relative weight gain from 1 to 48 mo with adiposity and cardiometabolic risk factors at 4-5 y of age, and determined if adiposity is a mediator for cardiometabolic alterations.

Methods: We studied 428 Mexican children with anthropometric and blood pressure (BP) information from birth to 5 y of age from POSGRAD (Prenatal Omega-3 fatty acid Supplementation and child GRowth And Development), of whom 334 provided measures of adiposity and cardiometabolic risk markers at 4 y.

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Objective:: To describe the methodology used to clean up and estimate dietary intake (DI) data from the Semi-Quantitative Food Frequency Questionnaire (SFFQ) of the Mexican National Health and Nutrition Survey 2012.

Materials And Methods:: DI was collected through a shortterm SFFQ regarding 140 foods (from October 2011 to May 2012). Energy and nutrient intake was calculated according to a nutrient database constructed specifically for the SFFQ.

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