Children with tic disorder(TD)have dietary behaviors and nutritional problems,which may lead to unbalanced dietary nutrition structure and affect the composition of their gut microbiota.Nutrients and gut microbiota may participate in the occurrence and development of tic through various metabolic pathways or microbial-gut-brain axis.Supplements may help relieve tic symptoms.This article reviews dietary nutrition,gut flora characteristics and related interventions in children with TD,and discusses the underlying biological mechanisms to provide a scientific basis for clinical monitoring of dietary nutritional problems and early intervention in children with TD.
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