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Review

Effects of Diet on Sleep: A Narrative Review

1
Central Queensland University, School of Health, Medical and Applied Sciences, Melbourne 3000, Victoria, Australia
2
Central Queensland University, Appleton Institute, Adelaide 5034, South Australia, Australia
3
Griffith University, School of Allied Health Sciences, Menzies Health Institute Queensland, Gold Coast 4222, Queensland, Australia
4
Central Queensland University, School of Health, Medical and Applied Sciences and Appleton Institute, Brisbane 4000, Queensland, Australia
*
Author to whom correspondence should be addressed.
Nutrients 2020, 12(4), 936; https://doi.org/10.3390/nu12040936
Received: 29 January 2020 / Revised: 2 March 2020 / Accepted: 25 March 2020 / Published: 27 March 2020
(This article belongs to the Special Issue Nutrition, Diet and Fatigue)
Many processes are involved in sleep regulation, including the ingestion of nutrients, suggesting a link between diet and sleep. Aside from studies investigating the effects of tryptophan, previous research on sleep and diet has primarily focused on the effects of sleep deprivation or sleep restriction on diet. Furthermore, previous reviews have included subjects with clinically diagnosed sleep-related disorders. The current narrative review aimed to clarify findings on sleep-promoting foods and outline the effects of diet on sleep in otherwise healthy adults. A search was undertaken in August 2019 from the Cochrane, MEDLINE (PubMed), and CINAHL databases using the population, intervention, control, outcome (PICO) method. Eligible studies were classified based on emerging themes and reviewed using narrative synthesis. Four themes emerged: tryptophan consumption and tryptophan depletion, dietary supplements, food items, and macronutrients. High carbohydrate diets, and foods containing tryptophan, melatonin, and phytonutrients (e.g., cherries), were linked to improved sleep outcomes. The authors posit that these effects may be due in part to dietary influences on serotonin and melatonin activity. View Full-Text
Keywords: sleep quality; sleep duration; nutrients; dietary supplements; food; adults sleep quality; sleep duration; nutrients; dietary supplements; food; adults
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MDPI and ACS Style

Binks, H.; E. Vincent, G.; Gupta, C.; Irwin, C.; Khalesi, S. Effects of Diet on Sleep: A Narrative Review. Nutrients 2020, 12, 936. https://doi.org/10.3390/nu12040936

AMA Style

Binks H, E. Vincent G, Gupta C, Irwin C, Khalesi S. Effects of Diet on Sleep: A Narrative Review. Nutrients. 2020; 12(4):936. https://doi.org/10.3390/nu12040936

Chicago/Turabian Style

Binks, Hannah, Grace E. Vincent, Charlotte Gupta, Christopher Irwin, and Saman Khalesi. 2020. "Effects of Diet on Sleep: A Narrative Review" Nutrients 12, no. 4: 936. https://doi.org/10.3390/nu12040936

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