title: Dietary vitamin D intake in patients with Crohn's disease.
abstract: In search for the reasons of vitamin D deficiency in Crohn's disease (CD), dietary records were evaluated over 7 days in 30 uninformed out-patients with CD (but no current flare-up) by the help of food tables and compared with those of 30 age- and sex-matched healthy controls. The study was undertaken in December. The nutritional status (height-weight index) was similar in both groups. The dietary vitamin D intake was as low in patient with CD (1.0 microgram/d; 0.5-1.3) as in the controls (1.1; 0.4-1.6) whereas the recommended daily intake is 5 micrograms/d. Vitamin D intake correlated with serum 25-hydroxyvitamin D (25-OHD) levels in patients with low 25-OHD levels (tau = 0.45, p = 0.04). Bone mineral content (BMC)-measured by single photon absorptiometry on the radius- was decreased in 9 patients (31%) with CD. Patients with CD tended to have a lower sun exposure in summer (p = 0.10), which also correlated with BMC (p = 0.03). Hence, a specific diet with a high vitamin D content, or vitamin D supplementation is recommended in patients with CD to overcome the negative effects of low sun exposure on bone mineral density.
authors.affiliation: Abteilung für Gastroenterologie und Hepatologie, Universitätsklinik für Innere Medizin IV, Wien.
authors.forename: H
authors.initials: H
authors.lastname: Vogelsang
authors.forename: M
authors.initials: M
authors.lastname: Klamert
authors.forename: H
authors.initials: H
authors.lastname: Resch
authors.forename: P
authors.initials: P
authors.lastname: Ferenci
mesh_terms: D000328:Adult; D015519:Bone Density; D003424:Crohn Disease / Q000150:complications*; D015930:Diet Records; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015596:Nutrition Assessment; D009751:Nutritional Requirements; D010024:Osteoporosis / Q000517:prevention & control; D014807:Vitamin D / Q000008:administration & dosage*; D014808:Vitamin D Deficiency / Q000209:etiology*
chemical_list: D014807:Vitamin D