Food pattern modeling to inform global guidance on complementary feeding of infants.

Nutrient needs are difficult to meet during infancy due to high nutrient requirements and the small quantities of food consumed. Guidelines to support food choice decisions are critical to promoting optimal infant health, growth and development and food pattern modeling can be used to inform guideline development. We employed the Optifood modeling system to determine if unfortified complementary foods could meet 13 nutrient targets for breastfed infants (6-11 months), and to describe food patterns that met, or came as close as possible to meeting targets. We also examined the impacts of eliminating food groups, increasing starchy staple foods or adding sentinel unhealthy foods. We collated a global food list from dietary studies in 37 countries and used this list to develop nutrient values for a set of 35 food subgroups. We analyzed infant dietary intakes from studies in eight countries to inform maximum quantities and frequencies of consumption for these subgroups in weekly food patterns. We found that unfortified foods could meet targets for most infants for 12 nutrients, but not for iron. For the smallest and youngest infants, with the lowest energy intakes, there were additional deficits for minerals. Best-case food patterns that met targets or came as close as possible to meeting targets included ample amounts of diverse vegetables, diverse plant- and animal-source protein foods, small amounts of whole grain foods and dairy and no refined grains or added fats or sugar. There were nutrient deficits if animal-source foods or vegetables were eliminated or if unhealthy foods were included.

Breastfeeding: crucially important, but increasingly challenged in a market-driven world.

In this Series paper, we examine how mother and baby attributes at the individual level interact with breastfeeding determinants at other levels, how these interactions drive breastfeeding outcomes, and what policies and interventions are necessary to achieve optimal breastfeeding. About one in three neonates in low-income and middle-income countries receive prelacteal feeds, and only one in two neonates are put to the breast within the first hour of life. Prelacteal feeds are strongly associated with delayed initiation of breastfeeding. Self-reported insufficient milk continues to be one of the most common reasons for introducing commercial milk formula (CMF) and stopping breastfeeding. Parents and health professionals frequently misinterpret typical, unsettled baby behaviours as signs of milk insufficiency or inadequacy. In our market-driven world and in violation of the WHO International Code for Marketing of Breast-milk Substitutes, the CMF industry exploits concerns of parents about these behaviours with unfounded product claims and advertising messages. A synthesis of reviews between 2016 and 2021 and country-based case studies indicate that breastfeeding practices at a population level can be improved rapidly through multilevel and multicomponent interventions across the socioecological model and settings. Breastfeeding is not the sole responsibility of women and requires collective societal approaches that take gender inequities into consideration.

The political economy of infant and young child feeding: confronting corporate power, overcoming structural barriers, and accelerating progress.

Despite increasing evidence about the value and importance of breastfeeding, less than half of the world's infants and young children (aged 0-36 months) are breastfed as recommended. This Series paper examines the social, political, and economic reasons for this problem. First, this paper highlights the power of the commercial milk formula (CMF) industry to commodify the feeding of infants and young children; influence policy at both national and international levels in ways that grow and sustain CMF markets; and externalise the social, environmental, and economic costs of CMF. Second, this paper examines how breastfeeding is undermined by economic policies and systems that ignore the value of care work by women, including breastfeeding, and by the inadequacy of maternity rights protection across the world, especially for poorer women. Third, this paper presents three reasons why health systems often do not provide adequate breastfeeding protection, promotion, and support. These reasons are the gendered and biomedical power systems that deny women-centred and culturally appropriate care; the economic and ideological factors that accept, and even encourage, commercial influence and conflicts of interest; and the fiscal and economic policies that leave governments with insufficient funds to adequately protect, promote, and support breastfeeding. We outline six sets of wide-ranging social, political, and economic reforms required to overcome these deeply embedded commercial and structural barriers to breastfeeding.

David Clark: Defender of Human Rights and Breastfeeding.

On September 10, I had the pleasure of interviewing my friend and colleague David Lawson Clark, the legal advisor for infant and young child nutrition and expert on the International Code of Marketing of Breast-milk Substitutes at UNICEF. A native of Scotland, David began his career as an attorney with the Scottish Development Agency and subsequently worked for the United Nations Interregional Crime and Justice Research Institute in Rome, Italy. Since 1995, David has assisted more than 60 countries in drafting legislation to implement the International Code of Marketing of Breastmilk Substitutes and has been instrumental in bringing a human rights-based approach to the protection, promotion, and support of breastfeeding. He has contributed to the development of international policy guidelines in the area of HIV and infant feeding and infant feeding in emergencies, and has provided guidance on issues around international trade agreements and intellectual property rights. David has written and contributed to many articles and publications on health and nutrition policy, developed courses and training materials on the implementation of the International Code and maternity protection, and has facilitated numerous workshops on the issue. (LGS refers to Dr. Laurence Grummer-Strawn and DC are the verbatim responses of David Clark).

Dynamics of the double burden of malnutrition and the changing nutrition reality.

The double burden of malnutrition (DBM), defined as the simultaneous manifestation of both undernutrition and overweight and obesity, affects most low-income and middle-income countries (LMICs). This Series paper describes the dynamics of the DBM in LMICs and how it differs by socioeconomic level. This Series paper shows that the DBM has increased in the poorest LMICs, mainly due to overweight and obesity increases. Indonesia is the largest country with a severe DBM, but many other Asian and sub-Saharan African countries also face this problem. We also discuss that overweight increases are mainly due to very rapid changes in the food system, particularly the availability of cheap ultra-processed food and beverages in LMICs, and major reductions in physical activity at work, transportation, home, and even leisure due to introductions of activity-saving technologies. Understanding that the lowest income LMICs face severe levels of the DBM and that the major direct cause is rapid increases in overweight allows identifying selected crucial drivers and possible options for addressing the DBM at all levels.

Sponsorship of national and regional professional paediatrics associations by companies that make breast-milk substitutes: evidence from a review of official websites.

OBJECTIVES: Professional paediatrics associations play an important role in promoting the highest standard of care for women and children. Education and guidelines must be made in the best interests of patients. Given the importance of breastfeeding for the health, development and survival of infants, children and mothers, paediatric associations have a particular responsibility to avoid conflicts of interest with companies that manufacture breast-milk substitutes (BMSs). The objective of this study was to investigate the extent to which national and regional paediatric associations are sponsored by BMS companies. METHODS: Data were collected on national paediatric associations based on online searches of websites and Facebook pages. Sites were examined for evidence of financial sponsorship by the BMS industry, including funding of journals, newsletters or other publications, conferences and events, scholarships, fellowship, grants and awards. Payment for services, such as exhibitor space at conferences or events and paid advertisements in publications, was also noted. RESULTS: Overall, 68 (60%) of the 114 paediatric associations with a website or Facebook account documented receiving financial support from BMS companies. Sponsorship, particularly of conferences or other events, was the most common type of financial support. The prevalence of conference sponsorship is highest in Europe and the Americas, where about half of the associations have BMS company-sponsored conferences. Thirty-one associations (27%) indicated that they received funding from BMS companies as payment for advertisements or exhibitor space. Only 18 associations (16%) have conflict of interest policies, guidelines, or criteria posted online. CONCLUSION: Despite the well-documented importance of breastfeeding and the widespread recognition that commercial influences can shape the behaviours of healthcare professionals, national and regional paediatric associations commonly accept funding from companies that manufacture and distribute BMS. Paediatric associations should function without the influence of commercial interests.

The magnitude and distribution of iron deficiency using serum/plasma ferritin among preschool children and non-pregnant women: a multi-country analysis.

Background: In 2004, World Health Organization (WHO) recommended the use of serum ferritin as a primary indicator of iron deficiency. However, there was limited data on the magnitude and distribution of iron deficiency based on ferritin. Objective: To describe the prevalence of iron deficiency as measured by serum/plasma ferritin in different regions of the world and its relationship with demographic and health indicators. Methods: Data from the Biomarkers Reflecting Inflammation and Nutrition Determinants of Anemia and the WHO Vitamin and Mineral Nutrition Information System Micronutrients Database were used for this analysis. Unadjusted and inflammation-adjusted low ferritin prevalence were calculated for both databases. The prevalence of low ferritin among preschool children and non-pregnant women was examined according to its relationship with national gross domestic product (GDP), infant mortality rate (IMR), and anemia rate. Results: In children, the median inflammation-adjusted prevalence of low ferritin was 35.3% (1st and 3rd quartiles: 17.5% and 48.1%). In non-pregnant women, the median inflammation-adjusted prevalence of low ferritin was 28.4% (1st and 3rd quartiles: 21.4% and 42.0%). For both children and women, the correlation between the prevalence of low ferritin and GDP, IMR, or anemia was consistently stronger using inflammation-adjusted prevalences than when using unadjusted prevalences. Conclusions: The quartile values of low ferritin prevalence for children and non-pregnant women could be used to define the severity of ferritin as a public health problem.

New World Health Organization guidance helps protect breastfeeding as a human right.

Written by the WHO/UNICEF NetCode author group, the comment focuses on the need to protect families from promotion of breast-milk substitutes and highlights new WHO Guidance on Ending Inappropriate Promotion of Foods for Infants and Young Children. The World Health Assembly welcomed this Guidance in 2016 and has called on all countries to adopt and implement the Guidance recommendations. NetCode, the Network for Global Monitoring and Support for Implementation of the International Code of Marketing of Breast-milk Substitutes and Subsequent Relevant World Health Assembly Resolutions, is led by the World Health Organization and the United Nations Children's Fund. NetCode members include the International Baby Food Action Network, World Alliance for Breastfeeding Action, Helen Keller International, Save the Children, and the WHO Collaborating Center at Metropol University. The comment frames the issue as a human rights issue for women and children, as articulated by a statement from the United Nations Office of the High Commissioner for Human Rights.

Is Erythrocyte Protoporphyrin a Better Single Screening Test for Iron Deficiency Compared to Hemoglobin or Mean Cell Volume in Children and Women?

Hemoglobin (Hb), mean cell volume (MCV), and erythrocyte protoporphyrin (EP) are commonly used to screen for iron deficiency (ID), but systematic evaluation of the sensitivity and specificity of these tests is limited. The objective of this study is to determine the sensitivity and specificity of Hb, MCV, and EP measurements in screening for ID in preschool children, non-pregnant women 15-49 years of age, and pregnant women. Data from the National Health and Nutrition Examination Surveys (NHANES) (NHANES 2003-2006: n = 861, children three to five years of age; n = 3112, non-pregnant women 15 to 49 years of age. NHANES 1999-2006: n = 1150, pregnant women) were examined for this purpose. Children or women with blood lead ≥10 µg/dL or C-reactive protein (CRP) >5.0 mg/L were excluded. ID was defined as total body iron stores <0 mg/kg body weight, calculated from the ratio of soluble transferrin receptor (sTfR) to serum ferritin (SF). The receiver operating characteristic (ROC) curve was used to characterize the sensitivity and specificity of Hb, MCV, and EP measurements in screening for ID. In detecting ID in children three to five years of age, EP (Area under the Curve (AUC) 0.80) was superior to Hb (AUC 0.62) (p < 0.01) but not statistically different from MCV (AUC 0.73). In women, EP and Hb were comparable (non-pregnant AUC 0.86 and 0.84, respectively; pregnant 0.77 and 0.74, respectively), and both were better than MCV (non-pregnant AUC 0.80; pregnant 0.70) (p < 0.01). We concluded that the sensitivity and specificity of EP in screening for ID were consistently superior to or at least as effective as those of Hb and MCV in each population examined. For children three to five years of age, EP screening for ID was significantly better than Hb and similar to MCV. For both non-pregnant and pregnant women, the performance of EP and Hb were comparable; both were significantly superior to MCV.

Participation in a Quality Improvement Collaborative and Change in Maternity Care Practices.

Care immediately following birth affects breastfeeding outcomes. This analysis compared improvement in maternity care practices from 2011 to 2013 among hospitals participating in a quality improvement collaborative, Best Fed Beginnings (BFB), to hospitals that applied but were not selected (non-Best Fed Beginnings [non-BFB]), and other hospitals, using Centers of Disease Control and Prevention's Maternity Practices in Infant Nutrition and Care (mPINC) survey data to calculate total and subscores for 7 care domains. Analysis of covariance compared change in scores from 2011 to 2013 among BFB, non-BFB, and other hospitals. BFB hospitals had twice the increase in mPINC score compared to non-BFB and a 3-fold increase compared to other hospitals. Learning collaborative participation may have accelerated progress in hospitals implementing breastfeeding-supportive maternity care.

C-reactive protein increases with gestational age during pregnancy among Chinese women.

OBJECTIVE: To examine the concentration of C-reactive protein (CRP) in relation to gestational weeks during pregnancy among Chinese women. METHODS: From a randomized control trial of prenatal supplementation with folic acid, iron-folic acid, and multiple micronutrients in China, we examined 834 pregnant women with CRP measured initially between 5 and 20 weeks and at follow-up between 28 and 32 weeks gestation. We calculated and plotted CRP geometric means by gestational weeks. The same analysis was repeated for women who had normal pregnancies (624 women) by excluding women with stillbirth, preterm, small for gestational age, body mass index <18.5 kg/m(2) or >30 kg/m(2) at enrollment, and hypertension or anemia during pregnancy. RESULTS: We observed a significant positive trend between log-transformed CRP and gestational age from 5 to 20 weeks and from 28 to 32 weeks both in the full sample and in the subset of women who had normal pregnancies. CRP geometric mean was 0.81 mg/l at 5-7 weeks of gestation, 2.85 mg/l at 19-20 weeks of gestation, and 3.89 mg/l at 32 weeks of gestation. A similar increasing trend in the CRP median or percentage of elevated CRP were also observed. CONCLUSION: We concluded that CRP increased with gestational age among healthy Chinese women who delivered healthy infants. Am. J. Hum. Biol. 28:574-579, 2016. © 2016 Wiley Periodicals, Inc.

Vital Signs: Improvements in Maternity Care Policies and Practices That Support Breastfeeding - United States, 2007-2013.

BACKGROUND: Although 80% of U.S. mothers begin breastfeeding their infants, many do not continue breastfeeding as long as they would like to. Experiences during the birth hospitalization affect a mother's ability to establish and maintain breastfeeding. The Baby-Friendly Hospital Initiative is a global program launched by the World Health Organization and the United Nations Children's Fund, and has at its core the Ten Steps to Successful Breastfeeding (Ten Steps), which describe evidence-based hospital policies and practices that have been shown to improve breastfeeding outcomes. METHODS: Since 2007, CDC has conducted the biennial Maternity Practices in Infant Nutrition and Care (mPINC) survey among all birth facilities in all states, the District of Columbia, and territories. CDC analyzed data from 2007 (baseline), 2009, 2011, and 2013 to describe trends in the prevalence of facilities using maternity care policies and practices that are consistent with the Ten Steps to Successful Breastfeeding. RESULTS: The percentage of hospitals that reported providing prenatal breastfeeding education (range = 91.1%-92.8%) and teaching mothers breastfeeding techniques (range = 87.8%-92.2%) was high at baseline and across all survey years. Implementation of the other eight steps was lower at baseline. From 2007 to 2013, six of these steps increased by 10-21 percentage points, although limiting non-breast milk feeding of breastfed infants and fostering post-discharge support only increased by 5-6 percentage points. Nationally, hospitals implementing more than half of the Ten Steps increased from 28.7% in 2007 to 53.9% in 2013. CONCLUSIONS: Maternity care policies and practices supportive of breastfeeding are improving nationally; however, more work is needed to ensure all women receive optimal breastfeeding support during the birth hospitalization. IMPLICATIONS FOR PUBLIC HEALTH PRACTICE: Because of the documented benefits of breastfeeding to both mothers and children, and because experiences in the first hours and days after birth help determine later breastfeeding outcomes, improved hospital policies and practices could increase rates of breastfeeding nationwide, contributing to improved child health.

Racial/ethnic differences in obesity trends among young low-income children.

INTRODUCTION: Racial/ethnic differences in recent obesity trends have not been reported among young low-income children. The purpose of this study is to examine trends in obesity prevalence from 1998 through 2011 by race/ethnicity among low-income children aged 2-4 years. METHODS: The study was based on measured weight and height records of 29,040,851 participants of federally funded health and nutrition programs from 30 states and the District of Columbia, which provided data each year from 1998 through 2011. More than 80% of data were collected through the Special Supplemental Nutrition Program for Women, Infants, and Children, and about 50% of eligible children were included. In 2014, joinpoint regression was used to identify the inflection years when significant changes in obesity trends occurred and piecewise logistic regression was used to examine annual changes in obesity prevalence before and after the inflection years controlling for age, sex, and race/ethnicity. RESULTS: The overall obesity prevalence increased from 13.05% in 1998 to 15.21% in 2003, and decreased slightly to 14.74% in 2011. The increasing trends among non-Hispanic white, non-Hispanic black, and Hispanic children began decreasing in 2003. Asian/Pacific Islander was the only racial/ethnic group with a continual decreasing trend in obesity prevalence from 1998 (14.34%) through 2011 (11.66%). Among American Indian/Alaska Native children, obesity prevalence consistently increased from 16.32% in 1998 to 21.11% in 2011, although the annual increases slowed since 2001. CONCLUSIONS: The study findings indicate modest recent declines in obesity prevalence for most racial/ethnic groups of low-income children aged 2-4 years. However, obesity prevalence remains high.

Breastfeeding and risk of infections at 6 years.

BACKGROUND: Previous studies have shown that breastfeeding is associated with reductions in the risk of common infections among infants; however, whether breastfeeding confers longer term protection is inconclusive. METHODS: We linked data from the 2005-2007 IFPS II (Infant Feeding Practices Study II) and follow-up data collected when the children were 6 years old. Multivariable logistic regression was used, controlling for sociodemographic variables, to examine associations of initiation, duration, exclusivity of breastfeeding, timing of supplementing breastfeeding with formula, and breast milk intensity (proportion of milk feedings that were breast milk from age 0-6 months) with maternal reports of infection (cold/upper respiratory tract, ear, throat, sinus, pneumonia/lung, and urinary) and sick visits in the past year among 6-year-olds (N = 1281). RESULTS: The most common past-year infections were colds/upper respiratory tract (66%), ear (25%), and throat (24%) infections. No associations were found between breastfeeding and colds/upper respiratory tract, lung, or urinary tract infections. Prevalence of ear, throat, and sinus infections and number of sick visits differed according to breastfeeding duration, exclusivity, and timing of supplementing breastfeeding with formula (P < .05). Among children ever breastfed, children breastfed for ≥9 months had lower odds of past-year ear (adjusted odds ratio [aOR]: 0.69 [95% confidence interval (95% CI): 0.48-0.98]), throat (aOR: 0.68 [95% CI: 0.47-0.98]), and sinus (aOR: 0.47 [95% CI: 0.30-0.72]) infections compared with those breastfed >0 to <3 months. High breast milk intensity (>66.6%) during the first 6 months was associated with lower odds of sinus infection compared with low breast milk intensity (<33.3%) (aOR: 0.53 [95% CI: 0.35-0.79]). CONCLUSIONS: This prospective longitudinal study suggests that breastfeeding may protect against ear, throat, and sinus infections well beyond infancy.

Methods for the year 6 follow-up study of children in the Infant Feeding Practices Study II.

OBJECTIVE: We describe methods used in the Year 6 Follow-Up (Y6FU) of children who participated in the Infant Feeding Practices Study II (IFPSII). This study consists of a questionnaire administered 6 years after the IFPSII to characterize the health, development, and diet quality of the children. METHODS: The Y6FU sample was a subset of those who participated in IFPSII. The IFPSII participants were drawn from a national consumer opinion panel; neither the IFPSII nor the Y6FU sample is nationally representative. The Y6FU sampling frame included all qualified participants who answered at least the first postnatal questionnaire. One questionnaire was administered by mail in 2012, and nonrespondents were contacted for a telephone interview. Survey topics included measures of health, development, diet, physical activity, screen time, and family medical history. We attempted to contact 2958 mothers and obtained completed questionnaires from 1542, a response rate of 52.1%. We conducted 2 sample evaluations, 1 comparing respondents and nonrespondents on data from IFPSII and the other comparing Y6FU respondents with 6-year-old participants in the National Survey of Children's Health. RESULTS: Y6FU mothers are more likely to be white, married, older, and of higher education and income than both nonresponders and nationally representative mothers. Comparisons also revealed health-related differences and similarities. CONCLUSIONS: Although not nationally representative, the Y6FU provides a valuable database because of its wide coverage of diet and health issues and its unique ability to link early feeding patterns with outcomes at age 6 years.