Date	Event	Description
26 April 2017	New search has been performed	A search of the Cochrane Cystic Fibrosis and Genetic Disorders Review Group's Cystic Fibrosis Trials Register identified a single new reference which was potentially eligible for inclusion in this review and which has been excluded (Adde 1997). A summary of findings table has been added to the review.
26 April 2017	New citation required but conclusions have not changed	As no new data have been added at this update, our conclusions remain the same.
27 October 2014	New search has been performed	A search of the Cystic Fibrosis & Genetic Disorders Review Group's Cystic Fibrosis Trials Register did not identify any new studies for possible inclusion in this review. The Plain Language Summary has been updated to reflect new guidance on style.
27 October 2014	New citation required but conclusions have not changed	A new author has joined the review team (Oli Rayner) after a previous author has stepped down from the review. As no new trials have been included in this updated review, our conclusions remain the same.
17 October 2012	Amended	Contact details updated.
4 September 2012	New search has been performed	A search of the Group's Cystic Fibrosis Trials Register did not identify any new references eligible for inclusion in this review.
4 September 2012	New citation required but conclusions have not changed	No new references have been added to the review at this update, therefore the conclusions of this review remain the same.
15 September 2010	New search has been performed	A search of the Group's Cystic Fibrosis Trials Register did not identify any new references which were potentially eligible for inclusion in this review.
12 August 2009	Amended	Contact details updated.
20 August 2008	New search has been performed	A search of the Group's Cystic Fibrosis Trials Register identified two new references. One of these was an additional reference to an already excluded study (Abdulhamid 2008); the other reference was excluded as the intervention was not an oral calorie supplement (Bruzzese 2007).
19 August 2008	Amended	Converted to new review format.
13 November 2007	Amended	The Plain Language Summary has been re‐drafted in light of the latest guidance from The Cochrane Collaboration.
13 November 2007	New search has been performed	The search identified two new references both of which have been added to the list of excluded studies (Oudshoorn 2007; Papas 2007).
15 November 2006	New search has been performed	The search identified ten new references to five trials. One reference was to an already included trial (Kalnins 2005). A further trial has now been included in the review (Poustie 2006). The other three trials have been added to 'Excluded studies' (Abdulhamid 2005; Haworth 2004; Lloyd‐Still 2001).
15 November 2006	New citation required and conclusions have changed	Substantive amendment
15 November 2006	Amended	A post hoc change has been made to the list of secondary outcomes and 'Activity levels' has now been added.
18 August 2004	New search has been performed	The search identified three new references. One of these was an additional reference to a study already excluded (Grey 2003). The other references were to two studies, both of which were excluded (Best 2004; Caramia 2003).
20 August 2003	New search has been performed	Three references have been added to the 'Excluded studies' section (McKenna 1985; Lands 2000; Lepage 2002). One reference has been added to the 'Ongoing studies' section (CALICO trial 2003).
11 July 2002	New search has been performed	A search of the Group's trials register found no new trials eligible for inclusion in this review.