Variation in dietary intake and body fatness by socioeconomic status among women in the context of Costa Rican nutrition transitions.

The Nutrition Transition model posits that vegetable oils, animal source foods (ASFs) and caloric sweeteners contribute to increases in adiposity and hence body mass index. Body mass index (BMI) is increasing more rapidly among Latin American populations of low versus high socioeconomic status (SES). The objectives of this study among Costa Rican women were to: (1) compare indicators of adiposity and dietary intake by SES and (2) evaluate the relationship between intake of foods high in vegetable oils, ASFs or caloric sweeteners and body fatness. This cross-sectional study, conducted in 2014-2015, included 128 low-, middle- and high-SES non-pregnant, non-lactating women aged between 25 and 45 years with 1-4 live births. Anthropometry was used to assess BMI, body composition and body fat distribution. Dietary recalls (n = 379) were used to assess dietary intake. Percentage body fat was greater in low- versus high-SES women (31.5 ± 3.9 vs 28.2 ± 4.7%). Skinfold measurements at four sites on the upper and lower body were greater in low- versus high-SES women. Body mass index did not vary in low- versus high-SES women. Intake frequency of foods high in vegetable oils was greater in low- and middle- (1.8 and 1.8 times/day, respectively) versus high- (1.1 times/day) SES women. For individual foods, intake frequency varied significantly by SES for high-fat condiments, fried vegetables, dairy, sweetened coffee/tea and pastries and desserts. Intake frequency of Nutrition Transition food categories was not associated with percentage body fat after adjustment for energy intake. Indicators of body composition provide additional information beyond BMI that are useful in understanding SES-adiposity associations in Latin America. Approaches to understanding diet and adiposity in Latin America that focus on vegetable oils, ASFs and caloric sweeteners should consider within-country variation in the pace of the Nutrition Transition, especially when explaining variation in adiposity by SES.

Beyond Nutrient Intake: Use of Digital Food Photography Methodology to Examine Family Dinnertime.

OBJECTIVE: To explore the feasibility of using an image-based food photography methodology (Remote Food Photography Method) in a rural, low-resource audience and use the photos to examine the context of family dinner. DESIGN: Parents used the SmartIntake app on study-issued tablets to take before and after photos of their and their child's dinner for about 7 nights and participated in a mini-focus group to discuss their experience with the Remote Food Photography Method. SETTING: Six Head Start/preschool centers in rural Colorado. PARTICIPANTS: Mother-child dyads (n = 31). VARIABLES MEASURED: Number and quality of photos received, participant feedback, meal timing, concordance, location, preparation, and quality. ANALYSIS: The researchers assessed feasibility via practicality (percent photos received) and acceptability (general inductive approach used to analyze mini-focus group transcripts for participant feedback); time stamps, meal quality, and food preparation scales were used to analyze dinner photos. RESULTS: The majority of photographs (738 of 864) were received. Participants reacted favorably to the methodology; for some, it led to greater self-reflection about mealtime. Mother-child dyads usually ate dinner at the same time and often ate the same food. Children were frequently served protein and refined grains and were rarely served whole grains or fruit. Many families relied on convenience foods. CONCLUSIONS AND IMPLICATIONS: Digital food photography was feasible in this audience. Photos yielded a holistic picture of family dinnertime: meal timing, location, concordance in parent-child meals, level of preparation, and meal quality.

HEROs: Design of a Mixed-Methods Formative Research Phase for an Ecocultural Intervention to Promote Healthy Eating and Activity Behaviors in Rural Families With Preschoolers.

OBJECTIVE: To describe the mixed-methods formative research phase in the development of the Healthy Environments Study (HEROs), a technology-based, interactive family intervention to promote healthy eating and activity behaviors for young children in the home environment. DESIGN: A mixed-method iterative approach, using ecocultural theory as a framework, will guide the development of both quantitative and qualitative formative research assessments. SETTING: Rural eastern Colorado. PARTICIPANTS: Low-income families (n = 200) with preschool-aged children enrolled at 6 Head Start/preschool centers. MAIN OUTCOME MEASURES: Quantitative and qualitative methodologies will garner insights into 4 key topic areas: (1) food behaviors and environments (Remote Food Photography Method, parent focus group, and survey), (2) physical activity behaviors and environments (parent interview and survey), (3) mobile device use (parent survey and interview), and (4) daily life (ecocultural family interview and teacher/staff group discussions). ANALYSIS: Results will be interpreted in combination to allow for a holistic understanding of participant behaviors, beliefs, attitudes and values related to each of the 4 topic areas. Collectively, outcomes will provide a comprehensive picture of preschoolers' daily life and inform intervention design and strategies to enhance preschoolers' eating and activity behaviors in the home environment.