• Cod liver oil intake and incidence of asthma in Norwegian adults-the HUNT study 

      Mai, Xiao-Mei; Langhammer, Arnulf; Chen, Yue; Camargo, Carlos Arthuro (Journal article; Peer reviewed, 2013)
      Background Cod liver oil is an important source of vitamin D, but also contains other fat-soluble components such as vitamin A. Before 1999, the cod liver oil formula in Norway contained a high concentration of vitamin A ...
    • Cross-Sectional and Prospective Cohort Study of Serum 25-Hydroxyvitamin D Level and Obesity in Adults 

      Mai, Xiao-Mei; Chen, Yue; Camargo, Carlos Arthuro; Langhammer, Arnulf (Journal article; Peer reviewed, 2012)
      Experimental studies suggest that vitamin D modulates the activity of adipocytes. The authors examined baseline serum 25-hydroxyvitamin D (25(OH)D) level in relation to prevalent and cumulative incident obesity in Norway. ...
    • Factors associated with vitamin D deficiency in a Norwegian population: the HUNT Study 

      Larose, Tricia L; Chen, Yue; Camargo, Carlos Arthuro; Langhammer, Arnulf; Romundstad, Pål Richard; Mai, Xiao-Mei (Journal article; Peer reviewed, 2014)
      Vitamin D deficiency occurs worldwide. Winter season and high Body Mass Index (BMI) are associated with low levels of serum 25-hydroxyvitamin D (25(OH)D). We estimated the prevalence of vitamin D deficiency in a Norwegian ...
    • Serum 25-Hydroxyvitamin D levels and incident asthma in adults; the HUNT study 

      Mai, Xiao-Mei; Langhammer, Arnulf; Camargo, Carlos Arthuro; Chen, Yue (Journal article; Peer reviewed, 2012)
      The impact of low vitamin D status on asthma development is unclear. The authors investigated the relation between the baseline serum 25-hydroxyvitamin D (25(OH)D) level and incident asthma in adults, including possible ...