Date	Event	Description
22 March 2016	Amended	We have corrected the stillbirth data for Friis 2004 and corrected the data for preterm birth, SGA, LBW, stillbirth, perinatal mortality, neonatal mortality, maternal anaemia, caesarian section, and miscarriage for Bhutta 2009a.
10 November 2015	Amended	We have corrected I2 values for footnotes 1 and 2 in the Table 1.
11 March 2015	New search has been performed	Search updated and two new trials included (Lui 2013 and West 2014) and 51 new studies excluded. Six trials included in previous versions of the review have now been excluded: four trials assessed the effect of fortification with multiple micronutrients (MMN) (Dieckmann 1944; Jarvenpaa 2007; Tatala 2002; Vadillo‐Ortega 2011) and two trials included high‐risk women (Gupta 2007; Rumiris 2006). A 'Summary of findings' table has been added. Two new outcomes, mode of delivery and macrosomia, have been added to the review. The list of primary outcomes has been modified.
11 March 2015	New citation required and conclusions have changed	It is now explicit that the review focuses on oral supplements and trials examining parenteral provision of multiple micronutrients (MMN) or MMN via food fortification are now not included. The updated review includes 19 studies. There is now evidence to suggest that women who receive MMN are at lower risk of having a stillbirth.
17 February 2012	New search has been performed	Search updated. For this update we have added 17 new included studies (Bhutta 2009a; Brough 2010; Fawzi 2007; Gupta 2007a; Hininger 2004; Jarvenpaa 2007; Kaestel 2005; Roberfroid 2008; Rumiris 2006a; Sood 1975; SUMMIT 2008; Sunawang 2009; Theobald 1937; Tofail 2008; Vadillo‐Ortega 2011; Zagre 2007; Zeng 2008) and 15 new excluded studies. We have also identified six ongoing studies (Biggs 2011; Cogswell 2006a; Dewey 2011; Fall 2007a; Moore 2011; West 2011a). This review is now comprised of 23 included studies; 64 excluded studies and six ongoing studies. The methods have been updated. Conclusions have not changed.
17 February 2012	New citation required but conclusions have not changed	Review updated. Conclusions not changed.
20 September 2008	Amended	Converted to new review format.