• Nutrition · Mar 2013

    Association between monosodium glutamate intake and sleep-disordered breathing among Chinese adults with normal body weight.

    • Zumin Shi, Gary A Wittert, Baojun Yuan, Yue Dai, Tiffany K Gill, Gang Hu, Robert Adams, Hui Zuo, and Anne W Taylor.
    • Department of Nutrition and Foodborne Disease Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China. zumin.shi@adelaide.edu.au
    • Nutrition. 2013 Mar 1;29(3):508-13.

    ObjectiveTo assess whether monosodium glutamate (MSG) intake is associated with sleep-disordered breathing (SDB).MethodsData from 1227 Chinese subjects who participated in the Jiangsu Nutrition Study were analyzed. All the participants were examined at two time points (baseline in 2002 and follow-up in 2007). The MSG intake was assessed quantitatively in 2002 and a sleep questionnaire was used to assess snoring and to construct an SDB probability score in 2007. Those within the fifth quintile of the score (highest) were defined as having a high probability of SDB.ResultsThe MSG intake was positively associated with snoring and a high probability of SDB in participants who had a normal body weight but in those who were overweight. A comparison of the extreme quartiles of MSG intake in subjects with a body mass index lower than 23 kg/m² showed an odds ratio of 2.02 (95% confidence interval 1.02-4.00) for snoring and an odds ratio of 3.11 (95% confidence interval 1.10-8.84) for a high probability of SDB. There was a joint effect between MSG and overweight in relation to SDB.ConclusionThe intake of MSG may increase the risk of SDB in Chinese adults with a normal body weight.Copyright © 2013 Elsevier Inc. All rights reserved.

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