Cited by 67Diet, Metabolism, and DiseaseNutrition, Health and Food BehaviorNeurotransmitter Receptor Influence on Behavior

Sugar rush or sugar crash? A meta-analysis of carbohydrate effects on mood

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Mantantzis, Konstantinos, Schlaghecken, Friederike, Sünram-Lea, Sandra I., Maylor, Elizabeth A.·2019·Neuroscience & Biobehavioral Reviews

Abstract

The effect of carbohydrate (CHO) consumption on mood is much debated, with researchers reporting both mood improvements and decrements following CHO ingestion. As global consumption of sugar-sweetened products has sharply increased in recent years, examining the validity of claims of an association between CHOs and mood is of high importance. We conducted a systematic review and meta-analysis to evaluate the relationship between acute CHO ingestion and mood. We examined the time-course of CHO-mood interactions and considered the role of moderator variables potentially affecting the CHO-mood relationship. Analysis of 176 effect sizes (31 studies, 1259 participants) revealed no positive effect of CHOs on any aspect of mood at any time-point following their consumption. However, CHO administration was associated with higher levels of fatigue and less alertness compared with placebo within the first hour post-ingestion. These findings challenge the idea that CHOs can improve mood, and might be used to increase the public's awareness that the 'sugar rush' is a myth, inform health policies to decrease sugar consumption, and promote healthier alternatives.

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Crossref · 10.1016/j.neubiorev.2019.03.016

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  1. Blass, E.M., 1987. Opiods, sweets and a mechanism for positive affect: Broad motivational implications, in: Dobbing, J. (Ed.), Sweetness. Springer-Verlag, Berlin, pp. 115-126.
  2. Deeks, J.J., Higgins, J.P.T., Altman, D.G., 2008. Analysing data and undertaking meta- analysis, in: Higgins, J.P.T., Green, S. (Eds.), Cochrane Handbook for Systematic Reviews of Interventions: Cochrane Book Series. John Wiley & Sons, pp. 243-296.

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Authors
Mantantzis, K., Schlaghecken, F., Sünram-Lea, S. I., & Maylor, E. A.
Affiliations
  • Humboldt-Universität zu Berlin (DE)
  • University of Warwick (GB)
Corresponding author
Maylor, Elizabeth A.
Venue
Neuroscience & Biobehavioral Reviews
Publisher
Elsevier BV
Published
2019-06
Volume
101
Pages
45-67
ISSN
0149-7634 (ISSN-L)
OpenAlex
W2933556563
Cited by
67
References
150
Citations by year
2026: 5 · 2025: 7 · 2024: 10 · 2023: 10 · 2022: 17 · 2021: 5 · 2020: 7 · 2019: 5 · 2018: 1
FWCI
1.31
Type
journal article
Language
en
Open access
Locations
  • Neuroscience & Biobehavioral Reviews (publishedVersion)
  • PubMed (publishedVersion)
  • Warwick Research Archive Portal (University of Warwick) (acceptedVersion)
  • Lancaster EPrints (Lancaster University) (submittedVersion)
Funders
University of Warwick
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diet, Metabolism, and Disease
  • Health Sciences › Nursing › Nutrition and Dietetics › Nutrition, Health and Food Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
carbohydrate intake, mood, sugar consumption, fatigue, alertness, sugar-sweetened foods
MeSH terms
Dietary Sugars, Affect, Anger, Confusion, Depression, Fatigue, Humans

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