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    Low dietary intake of magnesium is associated with increased externalising behaviours in adolescents

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    Access Status
    Open access
    Authors
    Black, Lucinda
    Allen, K.
    Jacoby, P.
    Trapp, Georgina
    Gallagher, C.
    Byrne, S.
    Oddy, W.
    Date
    2014
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Black, L. and Allen, K. and Jacoby, P. and Trapp, G. and Gallagher, C. and Byrne, S. and Oddy, W. 2014. Low dietary intake of magnesium is associated with increased externalising behaviours in adolescents. Public Health Nutrition. 18 (10): pp. 1824-1830.
    Source Title
    Public Health Nutrition
    DOI
    10.1017/S1368980014002432
    ISSN
    1475-2727
    School
    School of Public Health
    URI
    http://hdl.handle.net/20.500.11937/43494
    Collection
    • Curtin Research Publications
    Abstract

    Objective: Adequate Zn and Mg intakes may be beneficial for the prevention and treatment of mental health problems, such as depression, anxiety and attention-deficit hyperactivity disorder. We aimed to investigate the prospective association between dietary intakes of Zn and Mg and internalising and externalising behaviour problems in a population-based cohort of adolescents. Design: Prospective analysis (general linear mixed models) of dietary intakes of Zn and Mg assessed using a validated FFQ and mental health symptoms assessed using the Youth Self-Report (YSR), adjusting for sex, physical activity, family income, supplement status, dietary misreporting, BMI, family functioning and energy intake. Setting: Western Australian Pregnancy Cohort (Raine) Study. Subjects: Adolescents (n 684) at the 14- and 17-year follow-ups. Results: Higher dietary intake of Mg (per SD increase) was significantly associated with reduced externalising behaviours (β=−1·45; 95 % CI −2·40, −0·50; P=0·003). There was a trend towards reduced externalising behaviours with higher Zn intake (per SD increase; β=−0·73; 95 % CI −1·57, 0·10; P=0·085).Randomised controlled trials are necessary to determine any benefit of micronutrient supplementation in the prevention and treatment of mental health problems in adolescents.The study shows an association between higher dietary Mg intake and reduced externalising behaviour problems in adolescents. We observed a similar trend, although not statistically significant, for Zn intake. Randomised controlled trials are necessary to determine any benefit of micronutrient supplementation in the prevention and treatment of mental health problems in adolescents.

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