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The effects of medium chain triglyceride (MCT) supplementation using a C8:C10 ratio of 30:70 on cognitive performance in healthy young adults.

Ashton, JS, Roberts, JW, Wakefield, CJ, Page, RM, MacLaren, DPM, Marwood, S and Malone, JJ (2020) The effects of medium chain triglyceride (MCT) supplementation using a C8:C10 ratio of 30:70 on cognitive performance in healthy young adults. Physiology & Behavior. ISSN 1873-507X

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The effects of medium chain triglyceride (MCT) supplementation using a C8 C10 ratio of 30 70 on cognitive performance in healthy young adults.pdf - Accepted Version
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Abstract

PURPOSE: The brain can utilise medium chain triglycerides (MCTs) as an alternative fuel than glucose, and research has shown that MCT ingestion improves cognitive function in diseased and/or elderly individuals. The aim of this study is to determine if these improvements can also be observed in young, healthy adults. Furthermore, we aim to establish the ideal dosage and timeframe necessary for an effect. METHODS: Participants were divided equally into three groups of 10 (Placebo (0g), 12g and 18g MCT/day) and were supplemented for 4 weeks. The supplement had a C8:C10 ratio of 30:70. Participants visited the laboratory once a week for 5 weeks (baseline, test weeks 1-4) to undergo a battery of cognitive tests; Trail Making, Digit Span, Spatial Span, Covert Shift of Attention, and Rapid Visual Information Processing. RESULTS: After 2-3 weeks of supplementation, MCT ingestion enhanced performance in cognitive tasks, including: Trail Making A/B and Digit Span Forwards/Backwards (ps<0.001) when compared to a placebo group taking a carbohydrate gel. In Spatial Span Backwards, there was a significant main effect of group (p=0.002). Where significance was seen, there were main effects of time after 2-3 weeks (ps<0.05). There was minimal difference between the two MCT intervention groups in most measures (ps>0.05). There were also null results in tasks measuring attention and reaction time (ps>0.05). CONCLUSIONS: MCT ingestion improved cognitive performance after 2-3 weeks, with minimal difference between taking 12g and 18g MCT/day groups, suggesting a possible dose-response threshold at 12g MCT/day when supplementing over a short period.

Item Type: Article
Uncontrolled Keywords: 06 Biological Sciences, 11 Medical and Health Sciences, 17 Psychology and Cognitive Sciences
Subjects: T Technology > TX Home economics > TX341 Nutrition. Foods and food supply
R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: Elsevier
Related URLs:
Date Deposited: 24 Nov 2020 10:55
Last Modified: 24 Nov 2020 11:00
DOI or Identification number: 10.1016/j.physbeh.2020.113252
URI: https://researchonline.ljmu.ac.uk/id/eprint/14073

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