Child dietary patterns in Homo sapiens evolution: A systematic review

Dietary patterns spanning millennia could inform contemporary public health nutrition. Children are largely absent from evidence describing diets throughout human evolution, despite prevalent malnutrition today signaling a potential genome-environment divergence. This systematic review aimed to identify dietary patterns of children ages 6 months to 10 years consumed before the widespread adoption of agriculture. Metrics of mention frequency (counts of food types reported) and food groups (globally standardized categories) were applied to: compare diets across subsistence modes [gatherer-hunter-fisher (GHF), early agriculture (EA) groups]; examine diet quality and diversity; and characterize differences by life course phase and environmental context defined using Köppen-Geiger climate zones. The review yielded child diet information from 95 cultural groups (52 from GHF; 43 from EA/mixed subsistence groups). Animal foods (terrestrial and aquatic) were the most frequently mentioned food groups in dietary patterns across subsistence modes, though at higher frequencies in GHF than in EA. A broad range of fruits, vegetables, roots and tubers were more common in GHF, while children from EA groups consumed more cereals than GHF, associated with poor health consequences as reported in some studies. Forty-eight studies compared diets across life course phases: 28 showed differences and 20 demonstrated similarities in child versus adult diets. Climate zone was a driver of food patterns provisioned from local ecosystems. Evidence fro

Fish and complementary feeding practices for young children: Qualitative research findings from coastal Kenya

This study examines barriers to fish consumption during the complementary feeding period in two coastal counties of Kenya with high rates of child malnutrition. Study findings indicate that young child fish consumption is impacted by factors related to accessibility, food preferences, and caregiver’s knowledge and beliefs about fish during the complementary feeding period. These factors are influenced by prominent community figures such as elder women and health workers, whose own beliefs and understandings are impacted by underlying cultural norms, potentially limiting fish consumption. To our knowledge, this is the first study conducted in the coastal region of Kenya to focus on understanding fish consumption attitudes and beliefs during the complementary feeding phase. Our findings represent a critical first step towards the creation of more effective policies and interventions to address the significant nutritional disparities that exist in the study population

Samaki Salama - Promoting healthy child growth and sustainable fisheries in coastal Kenya: A study protocol

Background: One in five young children globally suffer the consequences of stunted growth and development and millions experience deficiencies in zinc, iron, iodine, vitamins A and B12, nutrients found bioavailable in fish foods. Small-scale fisheries have the potential to generate income and augment fish consumption while being environmentally sustainable if appropriately managed. However, those engaged in small-scale fisheries are often marginalized, poor, and malnourished. The Samaki Salama project seeks to better understand and address these challenges through a three-arm, longitudinal matched cluster study which evaluates the impact of an integrated nutrition social marketing and modified fishing trap intervention. Methods: here will be 400 small-scale fisher households enrolled from Kilifi County, Kenya and residing in communities matched on location (rural), livelihoods, and child nutritional status. The sample will include mothers and other caregivers, children 6–60 months, and fishers in the family. Applying a cluster design, the matched communities will be divided into three groups: (1) control (n = 200); (2) multi-component nutrition social marketing intervention to fishers, mothers, and health workers (n = 100); and (3) multi-component nutrition social marketing intervention plus modified fishing traps and training (n = 100). Primary outcomes include child growth, fish food intakes, and fisheries yield of mature fish. Secondary outcomes are diet diversity, child diarrheal morbidity, and fisheries revenue. A process evaluation will be used to monitor and ensure fidelity of intervention delivery. Discussion: This study builds on a growing body of literature illustrating the effectiveness of nutrition focused social marketing campaigns to promote active engagement of participants, high compliance to the intervention, and sustained behavior change. The second intervention element of modified fishing traps that allow immature fish to escape enables participants to act on the messaging they receive and promotes sustainable fishing through increased harvest efficiency and reduced catch of immature fish. The integrated approach of the Samaki Salama intervention provides an example of how to leverage multiple disciplines to address key challenges to human and environmental health and illustrates a pathway for scaling study innovations to other small-scale fisheries systems

Fish and Complementary Feeding Practices for Young Children: Qualitative Research Findings From Coastal Kenya

OBJECTIVES: To assess the potential barriers and facilitators to fish consumption during the complementary feeding period in two coastal counties of Kenya with high rates of child malnutrition. METHODS: This qualitative study was part of a mixed-methods formative research investigation to examine the role of sustainable fish production and access to fish foods in coastal communities in Kenya. Twenty in-depth interviews were conducted with primary caregivers of children less than five years (n = 12) and community health workers and nutritionists (n = 8) in Kilifi County and Kwale County. Interviews were transcribed, translated and analyzed. A conceptual framework was developed based on the analysis to illustrate major factors and pathways influencing decisions to feed fish in the complementary feeding period. RESULTS: Complementary feeding practices reported by caregivers showed a low level of fish consumption in young children and delayed introduction of fish to the diet. Findings indicate that fish consumption was impacted by factors related to accessibility, food preferences, and caregiver's knowledge and beliefs. Access to fish was driven primarily by cost, proximity to locations where different fish types were sold, gendered purchasing behavior and the seasonal availability of fish foods. In some cases, the high cost of fish outweighed positive associations or perceived nutritional benefits when deciding whether to feed fish to children. Caregivers’ knowledge, beliefs, and food preferences also impacted consumption, with mixed perceptions regarding the importance of fish as a source of protein and other nutrients. These direct factors were influenced by prominent community figures such as elder women and health workers, whose own beliefs and understandings were impacted by underlying cultural norms, potentially limiting fish consumption. CONCLUSIONS: Understanding current attitudes and beliefs toward fish consumption during the complementary feeding phase is a critical first step towards the creation of more effective policies and interventions that incorporate sustainable fish foods to address significant nutritional disparities that exist in the study population. FUNDING SOURCES: This study was supported by the United States Agency for International Development (USAID) Feed the Future Innovation Lab for Fish