Andrew Thorne-Lyman

Andrew Thorne-Lyman
Johns Hopkins Bloomberg School of Public Health | JHSPH · Department of International Health

ScD, MHS

About

189
Publications
114,885
Reads
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40,268
Citations
Citations since 2017
99 Research Items
35337 Citations
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Additional affiliations
August 2016 - present
Johns Hopkins Bloomberg School of Public Health
Position
  • Research Associate
October 2014 - December 2016
Harvard University
Position
  • Lecturer
May 2014 - May 2015
WorldFish and Harvard TH Chan School of Public Health
Position
  • Senior Nutrition Specialist, Adjunct Lecturer
Education
September 2009 - May 2013
Harvard University
Field of study
  • Nutrition
September 1995 - May 1997
Johns Hopkins Bloomberg School of Public Health
Field of study
  • International Health
September 1991 - May 1995
Pomona College
Field of study
  • Anthropology

Publications

Publications (189)
Article
Full-text available
Background Children's dietary patterns vary seasonally, particularly in subsistence agriculture settings like Nepal, but the seasonality of nutritious non-staple food consumption is not well explored in the literature. Objective To examine seasonal differences in children's consumption of provitamin A-rich fruit and vegetables, dairy, eggs, meat,...
Article
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Little is known of the usual food intakes of rural adolescents in South Asia. This study describes dietary patterns, based on >91,000 7‐day food frequencies among 30,702 girls and boys, aged 9–15 years in rural northwest Bangladesh. Three intake assessments per child, taken across a calendar year, were averaged to represent individual annual intake...
Article
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Nutrient content analyses of marine finfish and current fisheries landings show that fish have the potential to substantially contribute to global food and nutrition security by alleviating micronutrient deficiencies in regions where they are prevalent.
Article
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Global and local food system transformation is necessary in order to ensure the delivery of healthy, safe, and nutritious foods in both sustainable and equitable ways. Food systems are complex entities that affect diets, human health, and a range of other outcomes including economic growth, natural resource and environmental resiliency, and sociocu...
Article
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Background Urbanization is occurring rapidly in many low- and middle-income countries, which may affect households’ livelihoods, diet, and food security and nutritional outcomes. Objective The main objective of our study was to explore whether agricultural activity among a peri-urban population in Nepal was associated with better or worse food hou...
Article
Infant and young child feeding (IYCF) practices are influenced by many context-specific factors related to local food systems as well as social and cultural practices. Understanding these local contextual perspectives is essential for designing effective programs and policies. This paper uses focused ethnographic study methods to examine challenges...
Article
Seasonality is a natural feature of wild caught fisheries that introduces variation in food supply, and which often is amplified by fisheries management systems. Seasonal timing of landings patterns and linkages to consumption patterns can have a potentially strong impact on income for coastal communities as well as import patterns. This study char...
Article
The specific aim was to characterize retail purchases of red and processed meat and other major protein-rich foods in the U.S. and by state. Supermarket scanner data from grocery stores, supermarkets, and big box stores collected from 2017-2019 (NielsenIQ, New York, NY) was used to characterize retail purchases of red meat, processed meat, and othe...
Article
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Large scale surveys such as the Demographic and Health Surveys (DHS) are used to measure the coverage and quality of antenatal care (ANC)-related services. Studies have increasingly validated questions from these surveys, though few have explored respondent comprehension or associated thought processes. This study aimed to use cognitive testing and...
Article
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Inadequate diet among children has both immediate and long-term negative health impacts, but little is known about dietary diversity and dietary patterns of school-aged children in rural Kenya. We assessed dietary diversity and identified dietary patterns in school-aged children in Western Kenya using a latent class approach. We collected dietary i...
Article
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Background: The 2020 US Dietary Guidelines for Americans recommend that the US population consume more seafood. Most analyses of seafood consumption ignore heterogeneity in consumption patterns by species, nutritional content, production methods, and price, which have implications for applying recommendations. Objectives: We assessed seafood int...
Article
Full-text available
Significance The world produces enough food to nourish the global population, but inequitable distribution of food means many people remain at risk for undernutrition. Attainment of Sustainable Development Goal 2 relies on greater attention to distribution processes that match food qualities with dietary deficiencies. We explore this in the context...
Article
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Antenatal multiple micronutrient supplements (MMS) are more effective than iron and folic acid (IFA) supplements in reducing adverse pregnancy outcomes. Questions remain, however, about the ability of MMS to prevent anemia as effectively as IFA, especially at a lower dose of daily iron and in areas of high anemia prevalence. Analyzing data from 11...
Article
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People in fragile environments face shocks that negatively affect their nutrition. Many governments put policy mechanisms in place to promote recovery of households after adverse shocks; however, resilience is difficult to measure because some apparent recovery could be the result of statistical randomness and reversion to trends. This paper demons...
Article
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Background The WHO-UNICEF minimum dietary diversity (MDD) indicator for children aged 6–23 months is a global monitoring indicator used to track multi-year population-level changes in dietary quality, but the influence of seasonality on MDD estimates remains unclear. Objective Examine how seasonality of data collection may influence population-lev...
Article
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While a large number of studies have investigated seafood consumption in various markets, surprisingly little is known about the types of seafood sold in retail outlets or their product forms. in the USA. This is particularly true for fresh seafood, which is generally regarded as the most valuable product form of seafood. In this article, a unique...
Article
Objectives Improving child diet diversity is a policy priority in many settings. Multiple factors influence complementary feeding practices in low-income countries including household food access, caregiver-level factors and cultural practices. Child's dietary data is often available in national surveys (i.e., Demographic and Health Surveys, DHS),...
Article
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Maternal depression has been associated with adverse child growth and development; less is known about its relation to children's diet. In a cross‐sectional study embedded at endline of a longitudinal community development intervention, mothers of 629 children (age 23–66 months) in rural Nepal responded to household and children's diet questionnair...
Article
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Background Anemia is an etiologically heterogeneous condition affecting over half of preschool-aged children in South Asia. An urgent need exists to elucidate context-specific causes of anemia to effectively address this issue. Objective This study investigated national trends and stability in the prevalence of child anemia and associated risk fac...
Article
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Background Dietary diversity can play an important role in providing essential nutrients for both mother and fetus during pregnancy. This study aimed to assess the factors associated with dietary diversity during pregnancy in the western hill region of Nepal. Methods A cross-sectional study of 327 pregnant women was conducted in an urban municipal...
Article
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This study aimed to describe the timing and patterns of pubertal maturation of girls living in rural Bangladesh. Starting in September 2015, a total of 15,320 girls from a birth cohort, aged 9 to 15 years at initial encounter, were visited twice at about a one year interval, typically in their birth month. Participants were asked to self-report ext...
Article
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The value of animal-sourced foods (ASFs) in providing key nutrients, particularly for child growth and where diets are of low quality, is understood mainly from cross-sectional assessment of current consumption. Longitudinal panel data from Nepal, Bangladesh and Uganda were used here to assess associations among previous (lagged) and contemporaneou...
Article
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Background Seafood has a nutritional profile that can be beneficial to human health, which gives it a role to play in healthy diets. In addition, because its production and harvesting can have fewer environmental impacts than some forms of animal protein, it can contribute to sustainable diets. However, the positive health and environmental outcome...
Article
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Seafood is a highly traded commodity and 71% of the United States (U.S.) supply is imported. This study addresses questions about imported seafood safety and compares risks of outbreaks and recalls across countries of origin, species, and stages of the supply chain. We found that where seafood comes from does not play a major role in risk. Risk is...
Article
The “second 1000 days” is a period of rapid brain growth which consolidates developmental foundations and establishes school readiness. Understanding the relation between household characteristics, child diet, and child development remains incomplete, especially in resource-poor settings where >250 million children risk not achieving their full dev...
Article
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The COVID-19 pandemic and subsequent lockdowns are creating health and economic crises that threaten food and nutrition security. The seafood sector provides important sources of nutrition and employment, especially in low-income countries, and is highly globalized, allowing shocks to propagate. We studied COVID-19-related disruptions, impacts, and...
Article
Background: There is growing global demand for country-specific information to track nutritional status and its determinants, including intervention coverage. Periodic population-based surveys form the backbone of most national nutrition information systems. However, data on the coverage of many nutrition specific and sensitive interventions remai...
Article
The diversity of aquaculture production systems in Bangladesh may be calibrated to provide food and nutrition security without negative environmental impact, aligning multiple interests of the United Nations Sustainable Development Goals.
Article
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This paper reviews the literature assessing fish waste and loss in low- and middle-income countries. We find significant variation in estimates of loss in different parts of the value chain, due in part to the diversity in approaches used to measure it. Studies of physical and nutritional loss are more common than those of quality or market force l...
Preprint
Full-text available
In resource constrained countries, animal-sourced foods (ASFs) are an important nutrient-dense source of vitamins, minerals and macronutrients. While several studies have suggested the value of ASFs to child growth, most empirical evidence is based on cross-sectional data which can only provide information about the contemporaneous relationship bet...
Article
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Minimum dietary diversity (MDD), a population-level dietary quality indicator, is commonly used across low- and middle-income countries to characterize diets of children aged 6-23 mo. The WHO and UNICEF recently updated the MDD definition from consumption of ≥4 of 7 food groups in the previous 24 h (MDD-7) to ≥5 of 8 food groups (MDD-8), adding a b...
Preprint
Full-text available
The COVID-19 pandemic and subsequent lockdowns are creating health and economic crises that threaten food and nutrition security. The seafood sector provides important sources of employment and nutrition, especially in low-income countries, and is highly globalized, allowing shocks to propagate internationally. We use a resilience ‘action cycle’ fr...
Article
Full-text available
The aim of this study was to explore United States (U.S.) seafood consumption patterns, food sourcing, expenditures, and geography of consumption. We analyzed seafood intake and food sourcing using the National Health and Nutrition Examination Survey (NHANES) cycles 2007–2008 to 2015–2016 for US adults ≥19 years old (n = 26,743 total respondents; n...
Article
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Objectives To assess the association between exposure to prelacteal feeding and infant growth from birth to 3 months of age. Methods We analyzed data from a cohort of mothers and infants (n = 2569) identified as part of ongoing pregnancy and birth surveillance in rural Gaibandha, Bangladesh. Trained interviewers visited women in their households d...
Article
Objectives Our objective was to assess changes in prelacteal feeding practices in rural Bangladesh over a 15-year period, from ∼2004 to ∼2019, and to identify household, maternal, and infant characteristics associated with that trend. Methods The analysis used data from 21,804 infants enrolled in a cluster-randomized controlled trial of newborn vi...
Article
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Objectives National food-based dietary guidelines (FBDGs) are adapted by governments reflecting their nation's food system and specific nutrition context, with varied approaches by country. Seafood is commonly included as one of many items in a “meat” or “animal-source” food group. It is currently unclear whether FBDG recommendations for seafood ar...
Conference Paper
Full-text available
Objectives School gardens may improve child diet, but little is known about their effectiveness in rural areas in low-income countries. We evaluated the ability of school gardens to improve child diet in rural Kenya. We hypothesized that children in intervention schools would improve their dietary diversity and specifically their produce intake. M...
Article
Objectives A diverse diet helps to assure adequate micronutrient intakes and normal child growth and development. The revised minimum dietary diversity (MDD) indicator for children 6–23 months (>5 of 8 food groups) is often used to track dietary quality over time, but the influence of seasonality has not been explored. Methods We identified survey...
Article
Objectives Linear growth failure is often assessed as a height-for-age z-score (HAZ) < −2, which defines stunting. Faltering growth velocity on the other hand reveals a dynamic process, for which improving risk factors could help prevent poor growth, regardless of HAZ. Our aim was to reveal rates and risk factors of growth faltering in Nepali presc...
Article
Full-text available
Objectives Daily Iron-Folic Acid (IFA) supplementation is recommended for all pregnant women but there is no global standard coverage indicator. The validity of common IFA consumption indicators is questionable. The WHO UNICEF Technical Expert Advisory Group for Nutrition Monitoring and partners have supported multiple efforts to identify a feasibl...
Article
Background Preschool child anthropometric status has been assessed nationally in Nepal since 1975, with semi-decadal surveys since 1996, plus several recent, short-interval surveys to track progress toward achieving a World Health Assembly (WHA) goal to reduce stunting to 24% by 2025. Objective We report prevalence of preschool child stunting and...
Article
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Nepal has a rich history of vitamin A research and a national, biannual preschool vitamin A supplementation (VAS) programme that has sustained high coverage for 25 years despite many challenges, including conflict. Key elements of programme success have included (a) evidence of a 26–30% reduction in child mortality from two, in‐country randomized t...
Article
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Developmental delays affect between 150 and 200 million children <5 years of age worldwide. Outside of diet supplement studies, relatively little is known about the relationships between diet quality and developmental status in resource‐poor settings. We examined associations between different aspects of dietary quality (dietary diversity score [DD...
Article
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Achieving Sustainable Development Goal 2 of zero hunger and malnutrition by 2030 will require dietary shifts that include increasing the consumption of nutrient dense foods by populations in low- and middle-income countries. Animal source foods are known to be rich in a number of highly bioavailable nutrients that otherwise are not often consumed i...
Article
Full-text available
Animal source foods (ASF) provide nutrients essential to child growth and development yet remain infrequently consumed in rural Nepal. Agriculture and nutrition programs aim to increase ASF intake among children through small-scale animal husbandry projects. The relationship between livestock ownership and children’s consumption of ASF, however, is...
Article
Full-text available
Childhood malnutrition is associated with high morbidity and mortality globally¹. Undernourished children are more likely to experience cognitive, physical, and metabolic developmental impairments that can lead to later cardiovascular disease, reduced intellectual ability and school attainment, and reduced economic productivity in adulthood². Child...
Article
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Objective To assess the prevalence of missing and damaged teeth among women in the rural southern plains of Nepal using an interviewer-administered tooth assessment module. Setting 21wards in seven Village Development Committees across the Tarai of Nepal in 2015. Participants Resident, married women of children less than 5 years of age or those m...
Article
Objective: To examine the relationships between caregiver perceptions of neighborhood food environment and home food environment and between caregiver perceptions of neighborhood food environment and childhood obesity. Design: Cross-sectional. Setting: A total of twenty-six primary schools in northeast China. Participants: Anthropometric mea...
Article
Full-text available
Poverty adversely affects child development through multiple pathways in low- and middle-income countries. Relationships between diet and child development are poorly understood. In this study, we aimed to explore these associations in a longitudinal cohort of 305 children in rural Nepal (baseline mean age 14 months), evaluating dietary diversity a...
Article
Full-text available
Objectives: This study aimed to demonstrate feasibility of a novel method for measuring resilience in dietary diversity (DD) and body mass index (BMI) of rural women of reproductive age (WRA) in Nepal and Bangladesh. Resilience is defined as the population's ability to recover from adverse shocks, measured relative to statistical mean reversion....
Poster
Full-text available
Objectives: This study describes dietary patterns of women in Nepal and how dietary patterns vary by under-and-overweight, socioeconomic status (SES), and agro-ecological zone. Methods: In 2016, a national mid-year nutrition and health survey was conducted in Nepal. In each zone (mountains, hills and Tarai) 7 sub-districts (village development c...
Article
Objectives: There is a growing global demand for information to track nutritional status and its determinants, including intervention coverage. We developed an online survey to identify which nutrition indicators and data sources the global nutrition community uses currently and what information gaps remain. Methods: We created the survey using...
Article
Objectives: This study aimed to demonstrate feasibility of a novel method for measuring resilience in dietary diversity (DD) and body mass index (BMI) of rural women of reproductive age (WRA) in Nepal and Bangladesh. Resilience is defined as the population's ability to recover from adverse shocks, measured relative to statistical mean reversion....
Article
Full-text available
Objectives: We assessed micronutrient status in young rural Bangladeshi adolescents to determine prevalence of deficiency by sex, age, season and dietary pattern. Methods: In a birth cohort of >30,000 youth in whom data on health, development, and nutritional status was collected in 2015-2017, venous blood was drawn from a ∼3% subsample (n = 991...
Article
Objectives: Study objectives were to identify the prevalence and risk factors associated with the newly revised WHO indicator of minimum dietary diversity (MDD) among children aged 6-23 months in 7 countries in East and Southern Africa and to identify shared risk factors of programmatic importance across countries. Methods: MDD was defined as ha...
Poster
Objectives: Estimate the national and agro-ecological zonal prevalence of preschool child undernutrition and review temporal trends in the prevalence of undernutrition. Methods: In 2016, we conducted the last in a series of 3 (also 2013 and 2014) nationally representative, annual, same-season, mixed-longitudinal nutrition surveys - PoSHAN Commun...
Poster
Objectives: Animal source foods (ASF) promote young children's growth and development yet remain infrequently consumed in rural Nepal. Currently, agriculture and nutrition programs aim to increase ASF intake among children through small-scale animal husbandry projects. Yet the relationship between animal production and children's consumption of AS...
Poster
Full-text available
Objectives: Growth faltering in relation to the WHO reference is common in the first 2 years of life in South Asia. Stunting, defined as an attained height/length-for-age (H/LA) < -2 Z, is limited in its ability to capture this dynamic process. Our aims were to (1) reveal distributions of growth faltering by age in a cohort of preschool Nepali chi...
Article
Full-text available
Objectives: We assessed micronutrient status in young rural Bangladeshi adolescents to determine prevalence of deficiency by sex, age, season and dietary pattern. Methods: In a birth cohort of >30,000 youth in whom data on health, development, and nutritional status was collected in 2015-2017, venous blood was drawn from a ∼3% subsample (n = 991...
Poster
Full-text available
Objectives: To investigate national trends in the prevalence of anemia among children and the stability of factors associated with anemia in Nepal. Methods: A series of nationally representative mid-year surveys was conducted in the same 63 wards across the mountains, hills, and Tarai of Nepal in 2013, 2014, and 2016. Each survey collected data...
Article
Full-text available
Background Optimal breastfeeding practices, reflected by early initiation and feeding of colostrum, avoidance of prelacteal feeds, and continued exclusivity or predominance of breastfeeding, are critical for assuring proper infant nutrition, growth and development. Methods We used data from a nationally representative survey in 21 district sites a...