This will be a clinical, randomized, controlled, and double-blind trial comprising a consecutive sample of 110 CD patients in remission treated by the Gastroenterology team of the Inflammatory Intestinal Disease Clinic at the University Hospital (HU/CAS), Federal University of Juiz de Fora (UFJF). The patients will be divided into two groups: 55 patients with low serum vitamin D levels and 55 patients with normal vitamin D levels. Upon the approval by the Ethics Committee of the UFJF, the study aims and procedures will be previously explained to the individuals, who will sign an informed consent form.