Micronutrient Fortification Strategies for Anemia Control

Micronutrient fortification of widely consumed staples has emerged as a cornerstone in the global effort to prevent and control anaemia. Iron deficiency remains the principal cause of anaemia worldwide, frequently exacerbated by concurrent deficits in folate and vitamin B12. Strategies employ vehicles such as salt, flour, sugar and rice to deliver additional micronutrients at population scale, leveraging existing distribution systems for maximum reach. Technical advances in microencapsulation and premix technology have enabled stable formulations that resist sensory alterations, while tailored bioavailability optimisation ensures effective uptake even in the presence of dietary inhibitors. Double-fortified salt unites the established benefits of iodization with iron enrichment, advancing to quadruple fortification by inclusion of folic acid and vitamin B12 in contexts where multiple deficiencies co-exist. Large-scale implementation requires rigorous quality control, sensory evaluation and monitoring of haemoglobin and ferritin responses. Recent programmes demonstrate that fortified salt can be integrated into school meals and social safety nets, markedly improving status indicators without compromising taste or appearance. Ongoing challenges include the impact of inflammation on iron absorption, the need for context-specific formulation standards and supply chain capacities in low-resource settings. Together, these innovations and lessons learned underpin a globally relevant, cost-effective approach to reducing the burden of anaemia.

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Micronutrient Fortification Strategies for Anemia Control publication trend

The graph below shows the total number of articles in micronutrient fortification strategies for anemia control across all publications each year (not limited to Nature Index journals).

Technical terms

Double-fortified salt (DFS): Salt fortified with both iodine and iron to simultaneously address deficiencies.
Quadruple-fortified salt (QFS): Salt enriched with iodine, iron, folic acid and vitamin B12 for multiple deficiency contexts.
Bioaccessibility: The proportion of a nutrient released from the food matrix and available for intestinal absorption.
Microencapsulation: The process of enveloping micronutrients within a protective coating to prevent undesirable interactions and maintain stability.
Sensory acceptance: The evaluation of taste, colour and texture to ensure fortified foods remain acceptable to consumers.

References

1. Field-friendly MUNNG® optima simple test kit for quick qualitative assessment of iodine and iron presence in double-fortified salt. Frontiers in Nutrition (2023).
2. Women in Selected Communities of Punjab, India Have a High Prevalence of Iron, Zinc, Vitamin B12, and Folate Deficiencies: Implications for a Multiply-Fortified Salt Intervention. Nutrients (2023).
3. Multiple micronutrients fortified salt: consumers’ acceptability survey, Tanzania. BMC Public Health (2023).