 A large number of children experience undernutrition related to or resulting from their illness. The NHS has recently published standards which state that all patients should be screened for undernutrition on admission and periodically during their stay at hospital. Although, recent studies have attempted to develop appropriate nutritional screening tool for children on admission, there is no agreement concerning the most appropriate criteria to be used and they have not been validated for use in infants. The project team have developed a preliminary tool that would be both simple and quick to use in order to identify infants who are either undernourished or at risk of undernutrition on admission and who would benefit from referral for full nutritional assessment by a dietician. 