This study evaluates the potential of large-scale food fortification (LSFF) programs to reduce zinc deficiency on a global scale. Using food balance sheet data from the Food and Agriculture Organization (FAO), the authors estimate that 15% of the global population (approximately 1.13 billion people) currently experiences inadequate zinc intake, with particular concern in 40 countries where zinc deficiency poses a public health risk.
The study finds that mandatory LSFF programs for cereal grains fortified with zinc could reduce the prevalence of inadequate zinc intake by up to 50%. These programs would significantly increase zinc availability in national food supplies and improve population zinc status. The findings support investments in high-quality LSFF initiatives, which could have a substantial positive impact on global nutrition and help address widespread micronutrient deficiencies.