NCT05953324

Brief Summary

Hypothesis: Kiwifruit contains antioxidants and serotonin which may be beneficial in the treatment of sleep disruption. Aim: to assess the effects of daily intake of kiwifruit on sleep quality, fatigue, and BMI among Saudi adults with poor sleep quality. Methods: Twenty-six female participants (14 cases, and 12 controls) were included. All participants were aged ≥18 years and were Saudi and had poor sleep quality. Pregnant, lactating and participants with any chronic diseases such as cardiovascular or neurological diseases, and history of using herbal or medications for inducing sleep for the last two months were excluded. Participants in the case group consumed 2 kiwifruits 1 hour before bedtime nightly for 6 weeks and the control group did not consume kiwifruit. The Pittsburgh Sleep Quality Index (PSQI) questionnaire was used to assess sleep quality before and after kiwi consumption (score ≥ 5 indicates poor sleep quality), Fatigue Severity Scale (FSS) was used to assess fatigue and anthropometrics were measured based on the WHO guidelines. After 6 weeks, sleep quality, fatigue and BMI were compared between cases and controls. Kiwifruit consumption may improve sleep quality in adults with self-reported poor sleep quality. Further investigation of the sleep promoting properties of kiwifruit is required.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
26

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jan 2022

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2022

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2022

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 30, 2022

Completed
1.2 years until next milestone

First Submitted

Initial submission to the registry

July 1, 2023

Completed
19 days until next milestone

First Posted

Study publicly available on registry

July 20, 2023

Completed
Last Updated

July 20, 2023

Status Verified

July 1, 2023

Enrollment Period

1 month

First QC Date

July 1, 2023

Last Update Submit

July 11, 2023

Conditions

Keywords

SleepFatigueBody mass indexkiwifruitSaudi ArabiaRandomized controlled trial

Outcome Measures

Primary Outcomes (3)

  • sleep quality

    The Pittsburgh Sleep Quality Index questionnaire, minimum value is 0 and maximum value is 21. A value higher than 5 indicates poor sleep quality

    post intervention at week 6

  • Fatigue

    Fatigue Severity Scale. Grading of each item ranges from 1 to 7, where 1 indicates strong disagreement and 7 strong agreements, and the final score represents the mean value of the 9 items. Higher scores indicate more fatigue.

    post intervention at week 6

  • Body mass index

    Participants' weight and height were measured via (GIMA Pegaso Digital Scale), body mass index categories based on WHO

    post intervention at week 6

Study Arms (2)

Cases

EXPERIMENTAL

consumed two medium-size kiwifruit group \[21\] (cases) 1 hour before bedtime every night for 6 weeks (42 days in total).Randomization was performed by giving participants a note identifying the condition to which they were randomized; the note was placed in a sealed envelope. Blindness was not applicable since cases received kiwifruit and controls did not receive. Total number of kiwis consumed should be (14 kiwis (number of kiwis in one week) x 6 (number of weeks) = 84 kiwis in total. Participants consuming the kiwifruit were asked to keep a diary to record if they consumed them every day. During the 6-week intervention period, participants received their kiwifruit every week on the first day of the week (Sunday) that is adequate for a week (14 kiwi fruits brand name: Sharbatly Co. Ltd, variety: Hayward, country of origin: Italy). The kiwifruits were supplied at optimum ripeness for consumption and were instructed to keep the kiwi in the fridge to prevent damage.

Other: Kiwifruit

Controls

NO INTERVENTION

Had poor sleep quality however did not consume kiwifruit

Interventions

2 kiwifruit for 6 weeks

Cases

Eligibility Criteria

Age18 Years - 40 Years
Sexfemale(Gender-based eligibility)
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • aged ≥ 18 years
  • have poor sleep quality that was assessed in the screening visit by the PSQI (a score of at least 5)

You may not qualify if:

  • Pregnant
  • lactating
  • participants with any chronic diseases such as cardiovascular or neurological diseases
  • has a history of using herbal or medications for inducing sleep for the last two months

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Umm Al-Qura University

Mecca, 21955, Saudi Arabia

Location

Related Publications (30)

  • Noorwali E, Hardie L, Cade J. Bridging the Reciprocal Gap between Sleep and Fruit and Vegetable Consumption: A Review of the Evidence, Potential Mechanisms, Implications, and Directions for Future Work. Nutrients. 2019 Jun 19;11(6):1382. doi: 10.3390/nu11061382.

    PMID: 31248175BACKGROUND
  • Hafner M, Stepanek M, Taylor J, Troxel WM, van Stolk C. Why Sleep Matters-The Economic Costs of Insufficient Sleep: A Cross-Country Comparative Analysis. Rand Health Q. 2017 Jan 1;6(4):11. eCollection 2017 Jan.

    PMID: 28983434BACKGROUND
  • Bahammam AS. Sleep medicine in Saudi Arabia: Current problems and future challenges. Ann Thorac Med. 2011 Jan;6(1):3-10. doi: 10.4103/1817-1737.74269.

    PMID: 21264164BACKGROUND
  • Hirshkowitz M, Whiton K, Albert SM, Alessi C, Bruni O, DonCarlos L, Hazen N, Herman J, Katz ES, Kheirandish-Gozal L, Neubauer DN, O'Donnell AE, Ohayon M, Peever J, Rawding R, Sachdeva RC, Setters B, Vitiello MV, Ware JC, Adams Hillard PJ. National Sleep Foundation's sleep time duration recommendations: methodology and results summary. Sleep Health. 2015 Mar;1(1):40-43. doi: 10.1016/j.sleh.2014.12.010. Epub 2015 Jan 8.

    PMID: 29073412BACKGROUND
  • Ahmed AE, Al-Jahdali F, AlALwan A, Abuabat F, Bin Salih SA, Al-Harbi A, Baharoon S, Khan M, Ali YZ, Al-Jahdali H. Prevalence of sleep duration among Saudi adults. Saudi Med J. 2017 Mar;38(3):276-283. doi: 10.15537/smj.2017.3.17101.

    PMID: 28251223BACKGROUND
  • Itani O, Jike M, Watanabe N, Kaneita Y. Short sleep duration and health outcomes: a systematic review, meta-analysis, and meta-regression. Sleep Med. 2017 Apr;32:246-256. doi: 10.1016/j.sleep.2016.08.006. Epub 2016 Aug 26.

    PMID: 27743803BACKGROUND
  • Bacaro V, Ballesio A, Cerolini S, Vacca M, Poggiogalle E, Donini LM, Lucidi F, Lombardo C. Sleep duration and obesity in adulthood: An updated systematic review and meta-analysis. Obes Res Clin Pract. 2020 Jul-Aug;14(4):301-309. doi: 10.1016/j.orcp.2020.03.004. Epub 2020 Jun 8.

    PMID: 32527625BACKGROUND
  • Ma QQ, Yao Q, Lin L, Chen GC, Yu JB. Sleep duration and total cancer mortality: a meta-analysis of prospective studies. Sleep Med. 2016 Nov-Dec;27-28:39-44. doi: 10.1016/j.sleep.2016.06.036. Epub 2016 Nov 1.

    PMID: 27938917BACKGROUND
  • Erren TC, Morfeld P, Foster RG, Reiter RJ, Gross JV, Westermann IK. Sleep and cancer: Synthesis of experimental data and meta-analyses of cancer incidence among some 1,500,000 study individuals in 13 countries. Chronobiol Int. 2016;33(4):325-50. doi: 10.3109/07420528.2016.1149486. Epub 2016 Mar 22.

    PMID: 27003385BACKGROUND
  • Kwok CS, Kontopantelis E, Kuligowski G, Gray M, Muhyaldeen A, Gale CP, Peat GM, Cleator J, Chew-Graham C, Loke YK, Mamas MA. Self-Reported Sleep Duration and Quality and Cardiovascular Disease and Mortality: A Dose-Response Meta-Analysis. J Am Heart Assoc. 2018 Aug 7;7(15):e008552. doi: 10.1161/JAHA.118.008552.

    PMID: 30371228BACKGROUND
  • da Silva AA, de Mello RG, Schaan CW, Fuchs FD, Redline S, Fuchs SC. Sleep duration and mortality in the elderly: a systematic review with meta-analysis. BMJ Open. 2016 Feb 17;6(2):e008119. doi: 10.1136/bmjopen-2015-008119.

    PMID: 26888725BACKGROUND
  • Liu TZ, Xu C, Rota M, Cai H, Zhang C, Shi MJ, Yuan RX, Weng H, Meng XY, Kwong JS, Sun X. Sleep duration and risk of all-cause mortality: A flexible, non-linear, meta-regression of 40 prospective cohort studies. Sleep Med Rev. 2017 Apr;32:28-36. doi: 10.1016/j.smrv.2016.02.005. Epub 2016 Mar 3.

    PMID: 27067616BACKGROUND
  • Binks H, E Vincent G, Gupta C, Irwin C, Khalesi S. Effects of Diet on Sleep: A Narrative Review. Nutrients. 2020 Mar 27;12(4):936. doi: 10.3390/nu12040936.

    PMID: 32230944BACKGROUND
  • Du C, Almotawa J, Feldpausch CE, Folk SYL, Parag H, Tucker RM. Effects of macronutrient intake on sleep duration and quality: A systematic review. Nutr Diet. 2022 Feb;79(1):59-75. doi: 10.1111/1747-0080.12671. Epub 2021 Apr 19.

    PMID: 33876534BACKGROUND
  • Hansen AL, Dahl L, Olson G, Thornton D, Graff IE, Froyland L, Thayer JF, Pallesen S. Fish consumption, sleep, daily functioning, and heart rate variability. J Clin Sleep Med. 2014 May 15;10(5):567-75. doi: 10.5664/jcsm.3714.

    PMID: 24812543BACKGROUND
  • Garrido M, Espino J, González-Gómez D, et al.: A nutraceutical product based on Jerte Valley cherries improves sleep and augments the antioxidant status in humans. e-SPEN. 2009, 4:. 10.1016/j.eclnm.2009.09.003

    BACKGROUND
  • Garrido M, Paredes SD, Cubero J, Lozano M, Toribio-Delgado AF, Munoz JL, Reiter RJ, Barriga C, Rodriguez AB. Jerte Valley cherry-enriched diets improve nocturnal rest and increase 6-sulfatoxymelatonin and total antioxidant capacity in the urine of middle-aged and elderly humans. J Gerontol A Biol Sci Med Sci. 2010 Sep;65(9):909-14. doi: 10.1093/gerona/glq099. Epub 2010 Jun 13.

    PMID: 20547498BACKGROUND
  • Pigeon WR, Carr M, Gorman C, Perlis ML. Effects of a tart cherry juice beverage on the sleep of older adults with insomnia: a pilot study. J Med Food. 2010 Jun;13(3):579-83. doi: 10.1089/jmf.2009.0096.

    PMID: 20438325BACKGROUND
  • Howatson G, Bell PG, Tallent J, Middleton B, McHugh MP, Ellis J. Effect of tart cherry juice (Prunus cerasus) on melatonin levels and enhanced sleep quality. Eur J Nutr. 2012 Dec;51(8):909-16. doi: 10.1007/s00394-011-0263-7. Epub 2011 Oct 30.

    PMID: 22038497BACKGROUND
  • Lin HH, Tsai PS, Fang SC, Liu JF. Effect of kiwifruit consumption on sleep quality in adults with sleep problems. Asia Pac J Clin Nutr. 2011;20(2):169-74.

    PMID: 21669584BACKGROUND
  • Nødtvedt ØO, Hansen AL, Bjorvatn B, Pallesen S: The effects of kiwi fruit consumption in students with chronic insomnia symptoms: a randomized controlled trial. Sleep Biol Rhythms. 2017, 15:. 10.1007/s41105-017-0095-9

    BACKGROUND
  • Kanon A., Balan P, McNabb W., Roy N., Chow C., Henare S.: Kiwifruit: sleep superfood? - A study methodology. J Sleep Res. 2019, 28:. 10.1111/JSR.52_12913

    BACKGROUND
  • Hattori A, Migitaka H, Iigo M, Itoh M, Yamamoto K, Ohtani-Kaneko R, Hara M, Suzuki T, Reiter RJ. Identification of melatonin in plants and its effects on plasma melatonin levels and binding to melatonin receptors in vertebrates. Biochem Mol Biol Int. 1995 Mar;35(3):627-34.

    PMID: 7773197BACKGROUND
  • Arnao MB, Hernandez-Ruiz J. The physiological function of melatonin in plants. Plant Signal Behav. 2006 May;1(3):89-95. doi: 10.4161/psb.1.3.2640.

    PMID: 19521488BACKGROUND
  • Sedov ID, Cameron EE, Madigan S, Tomfohr-Madsen LM. Sleep quality during pregnancy: A meta-analysis. Sleep Med Rev. 2018 Apr;38:168-176. doi: 10.1016/j.smrv.2017.06.005. Epub 2017 Jun 15.

    PMID: 28866020BACKGROUND
  • Demirci JR, Braxter BJ, Chasens ER. Breastfeeding and short sleep duration in mothers and 6-11-month-old infants. Infant Behav Dev. 2012 Dec;35(4):884-6. doi: 10.1016/j.infbeh.2012.06.005. Epub 2012 Sep 23.

    PMID: 23010367BACKGROUND
  • Buysse DJ, Reynolds CF 3rd, Monk TH, Berman SR, Kupfer DJ. The Pittsburgh Sleep Quality Index: a new instrument for psychiatric practice and research. Psychiatry Res. 1989 May;28(2):193-213. doi: 10.1016/0165-1781(89)90047-4.

    PMID: 2748771BACKGROUND
  • Suleiman KH, Yates BC, Berger AM, Pozehl B, Meza J. Translating the Pittsburgh Sleep Quality Index into Arabic. West J Nurs Res. 2010 Mar;32(2):250-68. doi: 10.1177/0193945909348230. Epub 2009 Nov 14.

    PMID: 19915205BACKGROUND
  • Valko PO, Bassetti CL, Bloch KE, Held U, Baumann CR. Validation of the fatigue severity scale in a Swiss cohort. Sleep. 2008 Nov;31(11):1601-7. doi: 10.1093/sleep/31.11.1601.

    PMID: 19014080BACKGROUND
  • Physical status: the use and interpretation of anthropometry. Report of a WHO Expert Committee. World Health Organ Tech Rep Ser. 1995;854:1-452.

    PMID: 8594834BACKGROUND

Related Links

MeSH Terms

Conditions

ParasomniasFatigueBody Weight

Interventions

alcohol acyltransferase, Actinidia

Condition Hierarchy (Ancestors)

Sleep Wake DisordersNervous System DiseasesMental DisordersSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Essra Noorwali, PhD

    Umm Al-Qura University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Eligible participants were randomly assigned to either a non-kiwifruit feeding group (controls) or consumed two medium-size kiwifruit group \[21\] (cases) 1 hour before bedtime every night for 6 weeks (42 days in total). Total number of kiwis consumed should be (14 kiwis (number of kiwis in one week) x 6 (number of weeks) = 84 kiwis in total. Participants consuming the kiwifruit were asked to keep a diary to record if they consumed them every day. During the 6-week intervention period, participants received their kiwifruit every week on the first day of the week (Sunday) that is adequate for a week (14 kiwi fruits brand name: Sharbatly Co. Ltd, variety: Hayward, country of origin: Italy). The kiwifruits were supplied at optimum ripeness for consumption and were instructed to keep the kiwi in the fridge to prevent damage.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

July 1, 2023

First Posted

July 20, 2023

Study Start

January 1, 2022

Primary Completion

January 31, 2022

Study Completion

April 30, 2022

Last Updated

July 20, 2023

Record last verified: 2023-07

Data Sharing

IPD Sharing
Will not share

The following may be shared: Study Protocol Statistical Analysis Plan (SAP) Informed Consent Form (ICF) Clinical Study Report (CSR) Analytic Code

Locations