Date	Event	Description
24 May 2013	New citation required and conclusions have changed	Eleven studies have been included for this update (Almirante 1998; Bassaw 1998; Cong 1995; Herrera 1998; Herrera 2006; Jarjou 2004; Li 2000; Marya 1987; Rogers 1999; Rumiris 2006; Taherian 2002).Ten studies of low‐dose calcium added. New meta‐analyses performed. Substantially changed conclusions. Search updated in May 2014, six reports added to Studies awaiting classification (Asemi 2012b; Diogenes 2013; Goldberg 2013; Herrera 2006b; Jarjou 2013; Sulovic 2013a).
28 March 2013	New search has been performed	Search updated. Methods updated.
6 January 2011	Feedback has been incorporated	Feedback from William Stones and Stephen Walkinshaw added with replies from the authors.
5 July 2010	New citation required but conclusions have not changed	New author helped to update the review.
31 May 2010	New search has been performed	Search updated. Fifteen new reports identified: one new study (Kumar 2009) included and four new trials excluded (de Souza 2006; Dizavandy 1998; Herrera 1998a; Karandish 2003).
31 October 2009	Amended	Search updated. Fourteen new reports added to Studies awaiting classification.
1 September 2008	Amended	Converted to new review format.
2 March 2006	New search has been performed	Search updated.
2 March 2006	New citation required and conclusions have changed	A large trial of calcium supplementation in communities with low dietary calcium intake has been added (WHO 2006).