• Folic acid supplementation, dietary folate intake during pregnancy and risk for spontaneous preterm delivery: a prospective observational cohort study 

      Sengpiel, Verena; Bacelis, Jonas; Myhre, Ronny; Myking, Solveig; Pay, Aase Serine Devold; Haugen, Margaretha; Brantsæter, Anne Lise; Meltzer, Helle Margrethe; Nilsen, Roy Miodini; Magnus, Per; Vollset, Stein Emil; Nilsson, Staffan; Jacobsson, Bo (Peer reviewed; Journal article, 2014-11-02)
      Background: Health authorities in numerous countries recommend periconceptional folic acid supplementation to prevent neural tube defects. The objective of this study was to examine the association of dietary folate intake ...
    • Supplemental folic acid in pregnancy and maternal cancer risk 

      Mortensen, Jan Helge Seglem; Øyen, Nina; Fomina, Tatiana; Melbye, Mads; Tretli, Steinar; Vollset, Stein Emil; Bjørge, Tone (Peer reviewed; Journal article, 2015-12)
      Background: There is evidence that increased intake of folate protects against the development of several types of cancer. Some studies have, however, raised concern about the safety of folate in relation to cancer risk. ...