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Tang, Kevin, Katherine P. Adams, Elaine L. Ferguson, et al. Annals of the New York Academy of Sciences, September 2021

Large-scale food fortification may be a cost-effective intervention to increase micronutrient supplies in the food system when implemented under appropriate conditions. While the model predicted that large-scale food fortification would contribute to reducing vitamin A inadequacies, additional interventions are important to address other micronutrient deficiencies, especially for the rural poor.