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ObjectiveTo review articles on the relationship of dietary and circulating micronutrients with sleep patterns, and to identify issues surrounding implications for future research and public health practice.DesignA systematic review was conducted. PubMed, Embase and Scopus were searched through January 2016.SettingBoth experimental and observational studies were included. However, studies that focused on secondary sleep impairment due to comorbidities were excluded.SubjectsIndividuals in different age groups, from infants to older adults.ResultsA total of twenty-six articles were selected. In the articles reviewed, researchers generally supported a potential role of micronutrients, particularly Fe and Mg, in the development of sleep stages among infants and in reversing age-related alterations in sleep architecture in older adults. Micronutrient status has also been linked to sleep duration, with sleep duration …