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Does Vitamin D Help with Sleep? Let's Explore What Research Concludes
Vitamin D deficiency symptoms: Signs to add more foods to diet include tiredness | Express.co.uk
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The interfaces between vitamin D, sleep and pain in: Journal of Endocrinology Volume 234 Issue 1 (2017)
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Significant' link between daytime sleepiness and low vitamin D
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Have Trouble Sleeping? Increasing Vitamin D Can Help.
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On the job sleepiness 2.2X more likely if low vitamin D – Feb 2020 | VitaminDWiki
Lack of Sleep Linked to Vitamin Deficiencies
Excessive Daytime Sleepiness is Associated With Malnutrition, Dysphagia, and Vitamin D Deficiency in Older Adults - ScienceDirect
Investigating causality in the association between vitamin D status and self-reported tiredness | Scientific Reports
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