{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,29]],"date-time":"2025-12-29T08:54:11Z","timestamp":1766998451107,"version":"3.48.0"},"reference-count":57,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2025,12,29]],"date-time":"2025-12-29T00:00:00Z","timestamp":1766966400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ongoing Research Funding Program, King Saud University","award":["ORF-2025-1147-1"],"award-info":[{"award-number":["ORF-2025-1147-1"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nutrients"],"abstract":"<jats:p>Background: Studies that examine magnesium (Mg), zinc (Zn), and copper (Cu) in relation to sleep in the Middle East and North Africa are limited. We aim to assess the associations between serum and dietary Mg, Zn, and Cu levels and sleep quality in Saudi adults. Methods: A cross-sectional study was conducted among 1041 adults. Sleep quality was assessed using the Arabic Pittsburgh Sleep Quality Index (PSQI). Serum mineral levels were quantified biochemically, and dietary intake information was obtained. We utilized logistic regression to estimate the odds ratios for poor sleep (PSQI-P) in relation to serum and dietary indices in a crude model and after adjustment for confounders. Results: Serum Mg deficiency (&lt;1.8 mg\/dL) increased the odds of PSQI-P by 30% in the crude and age-adjusted models, with attenuation after further adjustment, suggesting partial mediation by lifestyle and metabolic factors. Mg deficiency was associated with PSQI-P (1.8-fold higher odds) after full adjustment. Dietary Mg levels below the DRI were independently associated with poor sleep across models. Higher serum Zn tertiles were associated with 40% lower odds of PSQI-P, and Zn deficiency (&lt;80 \u00b5g\/dL) demonstrated a three-fold independent increase in risk. Neither serum nor dietary intake levels of Cu demonstrated an association with sleep quality. Conclusion: In Saudi adults, serum and dietary Mg levels were associated with poor sleep, particularly in males, while the serum Zn concentration exhibited a modest inverse association at higher levels. Further longitudinal studies are warranted.<\/jats:p>","DOI":"10.3390\/nu18010114","type":"journal-article","created":{"date-parts":[[2025,12,29]],"date-time":"2025-12-29T08:47:27Z","timestamp":1766998047000},"page":"114","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Magnesium and Zinc Are Associated with Sleep Quality in Saudi Adults: Evidence from a Cross-Sectional Study"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7830-1415","authenticated-orcid":false,"given":"Sara","family":"Al-Musharaf","sequence":"first","affiliation":[{"name":"Community Health Sciences Department, College of Applied Medical Sciences, King Saud University, Riyadh P.O. Box 10219, Saudi Arabia"},{"name":"Center of Excellence in Biotechnology Research (CEBR), King Saud University, Riyadh 11451, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9228-8712","authenticated-orcid":false,"given":"Madhawi M.","family":"Aldhwayan","sequence":"additional","affiliation":[{"name":"Community Health Sciences Department, College of Applied Medical Sciences, King Saud University, Riyadh P.O. Box 10219, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tagreed A.","family":"Mazi","sequence":"additional","affiliation":[{"name":"Community Health Sciences Department, College of Applied Medical Sciences, King Saud University, Riyadh P.O. Box 10219, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ohud","family":"Abujabir","sequence":"additional","affiliation":[{"name":"Community Health Sciences Department, College of Applied Medical Sciences, King Saud University, Riyadh P.O. Box 10219, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3414-1525","authenticated-orcid":false,"given":"Waad","family":"Alfawaz","sequence":"additional","affiliation":[{"name":"Community Health Sciences Department, College of Applied Medical Sciences, King Saud University, Riyadh P.O. Box 10219, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4866-5461","authenticated-orcid":false,"given":"Ghadeer S.","family":"Aljuraiban","sequence":"additional","affiliation":[{"name":"Community Health Sciences Department, College of Applied Medical Sciences, King Saud University, Riyadh P.O. Box 10219, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,12,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2115","DOI":"10.5664\/jcsm.9476","article-title":"Sleep is essential to health: An American Academy of Sleep Medicine position statement","volume":"17","author":"Ramar","year":"2021","journal-title":"J. Clin. 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