Introduction: In crises such as war, displacement, and natural disasters, vulnerable populations, especially children under five years of age, pregnant and lactating women, the elderly, and chronically ill patients, are more susceptible to malnutrition and micronutrient deficiencies than other groups. Providing micronutrients in these situations is a significant challenge for the public health system. Materials and Methods: This narrative overview reviews the resources and strategies available in the world related to nutritional interventions in crises and the experiences of international and national organizations focusing on providing micronutrients by searching for resources through reputable scientific databases, including PubMed, Scopus, Medline, Cochrane, and websites related to nutrition and crises between 2000 and 2025. Results: Various international organizations, including the World Health Organization, United Nations International Children’s Fund (UNICEF), the World Food Program, and the United Nations High Commissioner for Refugees, have developed specialized guidelines for providing micronutrients in crises. A review of the guidelines shows that supplementation, fortification, the use of ready-to-eat products, and nutritional education are among the strategies countries use. Micronutrients such as vitamin A, iron, zinc, iodine, folate, and B vitamins are a priority. Conclusion: In crises, given the increased likelihood of micronutrient deficiencies, it is necessary to develop comprehensive, localized guidelines for their prevention and provision. Pooling international resources and analyzing existing recommendations can lead to the creation of a strategic model for use in health systems and crisis management across countries, as well as to the review and amendment of existing guidelines.
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