This information on best practice examines the evidence on effective interventions for use with undernourished older patients in hospital. It is based on an evidence synthesis of research published by Blackwell Publishing Asia and conducted by the Australian Centre for Evidence Based Nutrition and Dietetics (Vanderkroft et al 2007). The article has been reproduced with the permission of the Joanna Briggs Institute (JBI). The primary references are available online at: www.blackwell-synergy.com and to members of the JBI via the website: www.joannabriggs.edu.au.