Prevalence and factors associated with vitamin C deficiency in inflammatory bowel disease.

Background: Patients with inflammatory bowel disease (IBD) are prone to several nutritional deficiencies. However, data are lacking on vitamin C deficiency in Crohn's disease (CD) and ulcerative colitis (UC) patients, as well as the impact of clinical, biomarker and endoscopic disease severity on the development of vitamin C deficiency.

Aim: To determine proportions and factors associated with vitamin C deficiency in CD and UC patients.