William Waters

Dr. William Waters


Research Focus & Metrics

Academic Career Length

34Years (1993-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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13 September 2016 in Public Health Nutrition
Verified
Journal Article
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WFWilma B Freire
Wilma B Freire
WWWilliam Waters
William Waters
GRGabriela Rivas-Mariño
Gabriela Rivas-Mariño
TNTien Nguyen
Tien Nguyen
PRPatricio Rivas
Patricio Rivas
Objective: To analyse patterns of knowledge, comprehension, attitudes and practices regarding the traffic light label placed on processed food packages to inform Ecuadorian consumers about levels of added fat, sugar and salt.Design: Twenty-one focus group discussions organized by age group, sex and place of residence. Interviews with representatives of companies that manufacture or market processed foods. Analysis of regulations and structured observations of processed food labels.Setting: Cities and towns in Ecuador’s coastal, highland and eastern lowland regions.Subjects: One hundred and seventy-eight participants in twenty-one focus group discussions and nine key informants.Results: Focus group participants knew about the traffic light label and understood the information it conveys, but not all changed their attitudes and practices related to the purchase and consumption of processed foods. Children, adolescents and adult males reported using the information infrequently; adolescents interested in health and adult women used the label the most to select products. Representatives of companies that manufacture or market processed foods generally opposed the policy, stating that the information is misleading. Nevertheless, some companies have reduced levels of added fat, sugar or salt in their products.Conclusions: The traffic light label is an effective tool for conveying complex information. Its potential contribution to reduce consumption of products with high levels of fat, sugar and salt could be enhanced by promoting healthy diets among consumers who have not changed purchasing and consumption behaviour, by placing the label on front panels and by monitoring the production and marketing of processed foods.

12 September 2018 in Globalization and Health
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Journal Article
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WFWilma B. Freire
Wilma B. Freire
WWWilliam Waters
William Waters
DRDiana Román
Diana Román
EJElisa Jiménez
Elisa Jiménez
EBEstefania Burgos
Estefania Burgos
PBPhilippe Belmont
Philippe Belmont
In order to understand why rates of overweight and obesity are so high in the Ecuadorian province of Galapagos, this study analyzes changes in household food expenditures and perceptions and practices related to food consumption patterns. Galapagos is understood as an unusual but not unique case because conditions there graphically illustrate trends observed in communities and countries worldwide. A mixed methods approach was employed: a quantitative component was based on expenditures for foods classified according to the NOVA system, and a qualitative component utilized focus group discussions, key informant interviews, and structured observations. Galapagos residents increased consumption of processed and ultra-processed foods and decreased consumption of unprocessed and minimally processed foods. Perceived barriers to healthy diets include price, availability, and quality of fresh produce, as well as easy access to industrialized processed and ultra-processed foods. Changes in consumption patterns represent both local conditions and global trends; in that sense, the factors that affect Galapagos residents are not unique. Hence, these findings help elucidate processes observed in communities around the world.

18 December 2016 in International Health
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Journal Article
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CGCarlos Andres Gallegos
Carlos Andres Gallegos
WWWilliam Waters
William Waters
AKAnne Sebert Kuhlmann
Anne Sebert Kuhlmann
Traditional beliefs, knowledge and practices are formally integrated into the Ecuadorian health system. We sought to understand whether they are integrated in practice. Qualitative data were collected in two rural parishes in the central highlands of Ecuador through four focus group discussions (30 participants), eight key informant interviews, three participatory exercises (24 participants), structured observations of health facilities and analysis of official documents. We found different levels of integration, coexistence, tolerance, and intolerance of traditional health beliefs and practices in health facilities. One parish has undergone dramatic social and cultural transformation, and the role of traditional birth attendants is limited. In the other parish, traditional indigenous norms and values persist, and traditional birth attendants are sought during pregnancy and childbirth. The degree to which traditional birth attendants, indigenous women and their families are included or excluded from public health services depends largely on decisions taken by local health professionals. Formal policies in Ecuador stipulate that health care should be intercultural, but the role of traditional birth attendants is not necessarily incorporated in practice. The integration of culturally-informed beliefs and practices is critical for providing appropriate health services to members of vulnerable populations.

17 June 2018 in Nutrition and Health
Verified
Journal Article
Closed access
WFWilma B. Freire
Wilma B. Freire
WWWilliam Waters
William Waters
GRGabriela Rivas-Mariño
Gabriela Rivas-Mariño
PBPhilippe Belmont
Philippe Belmont
Background: The simultaneous presence of undernutrition and over-nutrition represents a paradox in global public health and is of increasing concern in Ecuador, where chronic malnutrition and overweight and obesity occur in the context of demographic and epidemiologic transitions. Two overlapping trends are present in Ecuador; while levels of stunting have decreased slowly in the past three decades, increasing proportions of children <5 years and women of reproductive age suffer from overweight and obesity. Aim: To analyze stunting and overweight and obesity in children <5 and their mothers aged from 15 to 49 years in the context of demographic and household characteristics between 1986 and 2012. Methods: This study compares data from nationally-representative surveys conducted in Ecuador in 1986, 2004, and 2012, each of which collected information on children <5 and mothers aged 15–49 years. Results: The prevalence of chronic malnutrition in children <5 decreased at different rates among Ecuadorians who differ in terms of residence, socioeconomic status, and mothers’ level of education, while overweight and obesity increased dramatically in the same period. Conclusion: Chronic malnutrition in children <5 and overweight in children <5 and mothers 15–49 years represent a double burden of malnutrition in Ecuador. The phenomena differ in their effects, and, while the prevalence of stunting is declining in Ecuador as it is in many parts of the world, the problem of overweight and obesity has emerged in dramatic fashion, and currently represents an extraordinary challenge to public health.

17 December 2019 in Maternal & Child Nutrition
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Journal Article
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LILora L. Iannotti
Lora L. Iannotti
MCMelissa Chapnick
Melissa Chapnick
JNJennifer Nicholas
Jennifer Nicholas
CGCarlos Andres Gallegos‐Riofrio
Carlos Andres Gallegos‐Riofrio
PMPatricia Moreno
Patricia Moreno
WWWilliam Waters
William Waters
The Lulun Project, a randomized controlled trial conducted in 2015, found that one egg per day for 6 months during early complementary feeding reduced stunting by 47% and increased linear growth by 0.63 length‐for‐age Z (LAZ). This follow‐up cohort study (Lulun Project II) aimed to test whether the growth effect remained in the egg intervention group compared with the control group after approximately 2 years. Mothers or caregivers from the Lulun Project were recontacted and recruited for this study. Enumerators collected data on socio‐economic and demographic factors, 24‐hr frequency of dietary intakes, morbidities, and anthropometric measures of height, weight, and head circumference using World Health Organization protocols. Statistical analyses followed the same analytical plan as Lulun Project, applying generalized linear models and regression modelling to test group differences in height‐for‐age z (HAZ) from LAZ at Lulun Project endline, and structural equation modelling for mediation. One hundred thirty‐five mother–child dyads were included in Lulun II, with 11% losses to follow‐up from endline Lulun Project. Growth faltering across all children was evident with HAZ −2.07 ± 0.91 and a stunting prevelance of 50%. Regression modelling showed no difference between egg and control groups for the HAZ outcome and other anthropometric outcomes, and significant declines in HAZ from endline Lulun Project in the egg intervention are compared with control groups. Current dietary egg intake, however, was associated with reduced growth faltering in HAZ from Lulun Project endline to Lulun Project II, independent of group assignment and through mediation, explaining 8.8% of the total effect. Findings suggest the need for a longer intervention period and ongoing nutrition support to young children during early childhood.

13 May 2021 in Current Developments in Nutrition
Verified
Journal Article
Open access
PDF file
CGCarlos Andres Gallegos-Riofrío
Carlos Andres Gallegos-Riofrío
WWWilliam Waters
William Waters
ACAmaya Carrasco
Amaya Carrasco
LRLuis A Riofrío
Luis A Riofrío
MPMabel Pintag
Mabel Pintag
LILora L Iannotti
Lora L Iannotti
To achieve a healthy sustainable food system globally, it is imperative to understand how local food systems can provide healthy and sustainable conditions. To explore, through the indigenous community of Caliata in the Ecuadorian highlands, the factors that support or hinder sustainable Andean food systems. We designed a participatory mixed-methods study in Caliata (Chimborazo, Ecuador) and an inclusive and transdisciplinary research process with constant member checking. The study combined culturally validated qualitative methods (n = 49), agroecology-based site analysis, and household surveys (n = 57), including a modified 48-h recall. We used the NOVA food classification system to categorize the diet according to levels of processing and analyzed categorical and numeric data to understand the interplay of parcel size, agrodiversity, and diet diversity. First, the agroecological space is defined by the stewardship of Pachamama (Mother Nature), a central role in Andean cosmovision, leading to trophic interactions and cycles characterized by a diversity of heterarchical social organizations and agroecologically useful species. Second, consistency was found in dietary patterns; all respondents consume their produce, fruits being the most popular snack (in a 24-h period, 70% reported an average of 2.2 servings), and two-thirds of households' consumption represent unprocessed or minimally processed foods. Third, gendered agriculture and population aging represent demographic challenges, while chronic health problems remain relatively infrequent compared with the general population. Fourth, food sovereignty is an ecocentric concept based on production, exchanges of seeds and produce, consumption of produce, and knowledge of how agroecological space is treated. This system represents a nutrient loop tied to a system of knowledge about how to care for soil, land, and the ecological community. Caliata provides important perspectives on linkages between diet, biodiversity, use of agroecological space, and rural–urban dynamics. This small indigenous community offers lessons for achieving both healthy ecosystems and food security.