Bioavailability of Vitamin D in Cod Liver Oil and Multivitamin Tablets in Healthy Subjects in Norway

University of Oslo

Status: Completed

Conditions: Healthy

Treatments: Dietary Supplement: Multivitamin tablet of type: Vitaplex ABCD; Dietary Supplement: Fish oil capsule (specially manufactured for the study)

Study type: Interventional

Funder types: Other

Identifiers

NCT01482689

S-04340

Details and patient eligibility

About

The main aim of the present study is to compare the bioavailability of vitamin D from cod liver oil and multivitamin tablets given to healthy individuals under the same conditions, as well as to study the influence of gender and ethnicity on vitamin D absorption. Healthy subjects will be randomised into two parallel groups receiving 10 micrograms (400 IU) per day of vitamin D3 from one fish oil capsule or one solid multivitamin tablet, respectively. Serum samples will be drawn at baseline and after four weeks (28 days) for the analysis of 25-hydroxyvitamin D, 1,25-dihydroxyvitamin D, parathyroid hormone, and tartrate resistant acid phosphatase in serum.

Enrollment: 74 patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Must be able to meet at baseline and follow-up visit

Exclusion criteria

• Using any vitamin D containing supplements regularly (> once per week)
• Travelled to sunny countries in the previous 3 months
• Used a tanning bed in the previous 3 months

Trial design

74 participants in 2 patient groups

Fish oil capsule

Experimental group

Treatment:

Dietary Supplement: Fish oil capsule (specially manufactured for the study)

Multivitamin tablet

Experimental group

Treatment:

Dietary Supplement: Multivitamin tablet of type: Vitaplex ABCD