Food aversion (FA) is an eating behavior where children refuse solid or fluid intake. FA can compromise the weaning off parenteral nutrition (PN) in children with intestinal failure (IF), reducing their quality of life (QoL). Around 25% of children with IF experience FA, but few data are available on interventions to get over FA. Messy play therapy (MPT) uses sensory activities to provide another meaningful avenue for learning in children by creating a fun way to experience new textures. This study aims to assess the efficacy of MPT in FA.