Dairy consumption and working memory performance in overweight and obese adults

Crichton, Georgina E. and Murphy, Karen J. and Howe, Peter R. C. and Buckley, Jonathan D. and Bryan, Janet (2012) Dairy consumption and working memory performance in overweight and obese adults. Appetite, 59 (1). pp. 34-40. ISSN 0195-6663

Abstract

All individuals will experience some degree of cognitive impairment in their later years. Diet is one readily modifiable factor that may influence cognitive function and psychological well-being. Very little research has considered the potential role of dairy foods in modulating cognitive and psychological functions. The objective of this study was to determine the effect of a high intake of reduced fat dairy food on cognitive performance. Overweight adults with habitually low dairy intakes (<two serves/day) were recruited for a 12month crossover dietary intervention trial and randomised to a high (four serves/day) or low (one serve/day) intake of reduced fat dairy, crossing over to the alternate diet after 6months. Participants were tested at the end of each 6month diet period on multiple measures of cognitive performance, including memory, information processing speed, executive function, attention and abstract reasoning. In 38 participants who completed the trial (average age=52±2years; BMI=31.5±0.8kg/m2), spatial working memory performance was marginally better following 6months of the high dairy diet compared with the low dairy diet. Increasing the dairy intake of habitually low dairy consumers may have the potential to improve working memory.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 05 Jun 2017 05:46
Last Modified: 05 Jun 2017 07:08
Uncontrolled Keywords: Cognitive function; Dairy food; Milk; Working memory; Public Health, Social Medicine and Epidemiology; Internal Medicine;
Fields of Research : 11 Medical and Health Sciences > 1117 Public Health and Health Services > 111706 Epidemiology
11 Medical and Health Sciences > 1111 Nutrition and Dietetics > 111199 Nutrition and Dietetics not elsewhere classified
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970111 Expanding Knowledge in the Medical and Health Sciences
Identification Number or DOI: 10.1016/j.appet.2012.03.019
URI: http://eprints.usq.edu.au/id/eprint/31600

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