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Intestinal absorption and vitamin levels: is a new focus needed?
Stephan R Vavricka1, Gerhard Rogler
1Division of Gastroenterology and Hepatology, Department of Internal Medicine, Stadtspital Triemli, Zurich, Switzerland. stephan.vavricka @ usz.ch
Digestive Diseases (Basel, Switzerland)
|January 9, 2013
Summary
Vitamins are crucial for metabolism, and deficiencies are common in inflammatory bowel disease (IBD) due to poor nutrient absorption. Supplementation, particularly vitamins B12, folic acid, and D, is vital for managing IBD and preventing complications.
Area of Science:
- Biochemistry
- Human Metabolism
- Nutritional Science
Background:
- Vitamins are essential micronutrients not synthesized by the body, acting as cofactors in metabolic reactions.
- Specific vitamins possess anti-inflammatory properties.
- Inflammatory bowel disease (IBD) often leads to vitamin deficiencies due to malnutrition and malabsorption, causing anemia.
Purpose of the Study:
- To review existing literature on vitamin deficiencies in patients with inflammatory bowel disease (IBD).
- To highlight the importance of nutritional monitoring and supplementation in IBD management.
Main Methods:
- Literature review of studies and case reports on vitamin deficiencies in IBD patients.
- Summary of findings related to specific vitamins (A, B1, B2, niacin, B6, B12, C, D, E, K) and folic acid.
Main Results:
- Vitamin B12 and folic acid supplementation are often necessary for IBD patients, especially those with Crohn's disease (CD) affecting the ileum or undergoing ileum resection.
- Sulfasalazine therapy can inhibit vitamin B12 absorption.
- Patients with active CD on steroid therapy are at risk for vitamin D deficiency and low bone mineral density, necessitating regular monitoring and supplementation.
- A recent trial suggested vitamin D may reduce relapse risk in CD patients.
Conclusions:
- Regular nutritional monitoring by physicians and dieticians is essential for IBD patients.
- Targeted vitamin supplementation (B12, folic acid, D) is crucial for managing IBD and mitigating complications like anemia and bone density loss.
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