Cognitive and mood effects of a nutrient enriched breakfast bar in healthy adults: a randomised, double-blind, placebo-controlled, parallel groups study.

Kennedy, David, Wightman, Emma, Forster, Joanne, Khan, Julie, Haskell, Crystal and Jackson, Philippa (2017) Cognitive and mood effects of a nutrient enriched breakfast bar in healthy adults: a randomised, double-blind, placebo-controlled, parallel groups study. Nutrients, 9 (12). p. 1332. ISSN 2072-6643

[img]
Preview
Text (Article)
nutrients-09-01332.pdf - Published Version
Available under License Creative Commons Attribution 4.0.

Download (2MB) | Preview
Official URL: http://dx.doi.org/10.3390/nu9121332

Abstract

Objectives: Few previous studies have assessed the effects of concomitant administration of multiple potentially psychoactive nutrients. Methods: 95 healthy adult participants consumed either a nutrient enriched breakfast bar (containing α-Linolenic acid, l-tyrosine, l-theanine, vitamins, minerals and 21.5 mg of caffeine) or an isocaloric, macronutrient matched control bar for 56 days. Cognitive function and mood were assessed pre-dose and at 40- and 160-min post-dose on the 1st and 56th day of the intervention period. Results: The results demonstrated acute effects of treatment across post-dose assessments on both assessment days in terms of alertness, and on tasks assessing attention, working and episodic memory and executive function, including cognitively demanding Serial subtraction and Rapid Visual Information Processing tasks. There were no evident chronic effects independent of the breakfast bars’ acute effects. Discussion: These results demonstrate that a nutrient enriched breakfast bar with low caffeine content can exert striking beneficial effects on acute cognitive function and alertness.

Item Type: Article
Uncontrolled Keywords: vitamin, L-theanine, L-tyrosine, caffeine, cognitive, mood
Subjects: B400 Nutrition
C800 Psychology
D600 Food and Beverage studies
Department: Faculties > Health and Life Sciences > Psychology
Depositing User: Emma Wightman
Date Deposited: 18 Dec 2017 15:40
Last Modified: 19 Dec 2017 10:06
URI: http://nrl.northumbria.ac.uk/id/eprint/32887

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics


Policies: NRL Policies | NRL University Deposit Policy | NRL Deposit Licence