Vitamin D Regulation of Gut Specific B Cells and Antibodies Targeting Gut Bacteria in Inflammatory Bowel Disease

Exclusion Criteria

• •Patients less than 18 years old
• •No diagnosis of IBD
• •Serum 25(OH)D \> 25 ng/mL
• •Patients already on vitamin D supplementation
• •Prior history of bowel surgery (colectomy or small bowel resections)
• •Recent antibiotic use in past 3 months
• •Renal Dysfunction
• •History of Hypercalcemia
• •History of HIV
• •History of IgA deficiency
• •History of Common Variable Immunodeficiency (CVID)
• •Active C. diff infection