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Physiol Behav. 2018 Aug 1;192:118-126. doi: 10.1016/j.physbeh.2018.02.052. Epub 2018 Mar 1.

Dietary influences on cognition.

Author information

1
School of Health and Biomedical Science, RMIT University, Melbourne, Victoria 3083, Australia.
2
National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA.
3
Department of Pharmacology, Physiology and Neuroscience, University of South Carolina School of Medicine, Columbia, SC 29208, USA; W.J.B. Dorn Veterans Affairs Hospital, Columbia, SC 29208, USA. Electronic address: Lawrence.Reagan@uscmed.sc.edu.
4
Department of Psychology, Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada.
5
Department of Internal Medicine, Division of Endocrinology, Keck School of Medicine University of Southern California, Los Angeles, CA, USA.

Abstract

Obesity is a world-wide crisis with profound healthcare and socio-economic implications and it is now clear that the central nervous system (CNS) is a target for the complications of metabolic disorders like obesity. In addition to decreases in physical activity and sedentary lifestyles, diet is proposed to be an important contributor to the etiology and progression of obesity. Unfortunately, there are gaps in our knowledge base related to how dietary choices impact the structural and functional integrity of the CNS. For example, while chronic consumption of hypercaloric diets (increased sugars and fat) contribute to increases in body weight and adiposity characteristic of metabolic disorders, the mechanistic basis for neurocognitive deficits in obesity remains to be determined. In addition, studies indicate that acute consumption of hypercaloric diets impairs performance in a wide variety of cognitive domains, even in normal non-obese control subjects. These results from the clinical and basic science literature indicate that diet can have rapid, as well as long lasting effects on cognitive function. This review summarizes our symposium at the 2017 Society for the Study of Ingestive Behavior (SSIB) meeting that discussed these effects of diet on cognition. Collectively, this review highlights the need for integrated and comprehensive approaches to more fully determine how diet impacts behavior and cognition under physiological conditions and in metabolic disorders like type 2 diabetes mellitus (T2DM) and obesity.

KEYWORDS:

Dementia; Diabetes; Fructose; Impassivity; Insulin; Obesity

PMID:
29501837
PMCID:
PMC6071323
[Available on 2019-08-01]
DOI:
10.1016/j.physbeh.2018.02.052
[Indexed for MEDLINE]

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