Understanding Which Vitamin Deficiency Causes Tics and Other Nutritional Links
                                
                                
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                                    4 min read                                
                            
                                According to a 2023 meta-analysis, children with tic disorders showed significantly lower serum levels of vitamin D compared to healthy controls. While tic disorders are complex, with both genetic and environmental factors playing a role, emerging evidence suggests that nutritional deficiencies, particularly low vitamin D, may be associated with the presence and severity of tics.