• Effects of Vitamin D binding protein phenotypes and Vitamin D supplementation on serum total 25(OH)D and directly measured free 25(OH)D 

      Sollid, Stina Therese; Strand Hutchinson, Moira; Berg, Vivian; Fuskevåg, Ole-Martin; Figenschau, Yngve Anton; Thorsby, Per Medbøe; Jorde, Rolf (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-01-05)
      Objective:<br>To determine the relationship between serum total 25-hydroxyvitamin D (25(OH)D), directly measured free 25(OH)D and calculated free 25(OH)D with regard to vitamin D-binding protein (DBP) phenotypes, sex, BMI, age and season, and their interrelationship to vitamin D supplementation.<br>Design, patients and interventions:<br>A randomized controlled trial with 20 000 IU of vitamin D3 per ...