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Association between monosodium glutamate intake and sleep-disordered breathing among Chinese adults with normal body weight |
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| Authors: | Zumin Shi Gary A Wittert Baojun Yuan Yue Dai Tiffany K Gill Gang Hu Robert Adams Hui Zuo Anne W Taylor |
| Institution: | 1. Department of Nutrition and Foodborne Disease Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China;2. Discipline of Medicine, University of Adelaide, Adelaide, South Australia, Australia;3. Chronic Disease Epidemiology Laboratory, Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, USA |
| Abstract: | 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. |
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