The use of macronutrient and micronutrient foods is associated with the duration of sleep. This study aimed to determine the effect of zinc supplements on the sleep quality of older adults. The current parallel randomized clinical trial study was performed using a convenience sampling method. One hundred and fifty older adults who met the inclusion criteria were assigned to intervention and control group. The participants in the intervention group received a daily dose of 30 mg zinc supplementation pill for 70 days and the control group did not receive any supplement. Sleep quality was measured using the Pittsburgh Sleep Quality Index (PSQI). Serum zinc level in both groups was measured through the auto-analysis method. The questionnaire was completed and the serum level of zinc was measured twice, before the intervention and 70 days after the intervention. Both groups were homogeneous in terms of demographic variables, sleep quality, and serum zinc level before the intervention. Of all, 73.3% of older adults in the intervention group and 74.7% of older adults in the control group had poor sleep quality. Sleep quality in the intervention group, as compared with the control group, significantly improved after the intervention. Furthermore, serum zinc levels in older adults in the intervention group, as compared with the control group, significantly increased after the intervention. Based on the results of this study, it is recommended to utilize zinc supplementation as a new therapeutic approach for improving sleep quality in older adults.
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
3
Anastasiia Shkodina, Tymur Iengalychev, Kateryna Tarianyk, Dmytro Boiko, Nataliia Lytvynenko, Andrii Skrypnikov
(2022)
Relationship between sleep disorders and neuropsychiatric symptoms in Parkinson's disease: A narrative review
AFMN Biomedicine, 39(3)
10.5937/afmnai39-33652
Alireza Khosropanah, Seyed Ahmad Hosseini, Ali Keshavarz
(2026)
Nutritional modulators of sleep: A narrative review of vitamins, minerals, amino acids, and their neurobiological and chronoepigenetic mechanisms
Chronobiology International, 43(7)
10.1080/07420528.2026.2648011
Mostafa Shahraki Jazinaki, Alireza Gheflati, Mohammad Reza Shadmand Foumani Moghadam, Saeid Hadi, Maryam Razavidarmian, Masoud Yaghob Nezhad, Hale Akhtari, Mona Nematizadeh, Mohammad Safarian
(2024)
Effects of zinc supplementation on sleep quality in humans: A systematic review of randomized controlled trials
Health Science Reports, 7(10)
10.1002/hsr2.70019The statements, opinions and data contained in the journal are solely those of the individual authors and contributors and not of the publisher and the editor(s). We stay neutral with regard to jurisdictional claims in published maps and institutional affiliations.