The purpose of this study is to determine whether a daily supplement of vitamin D, taking before and during pregnancy, effects child birth weight, pre- and postpartum complication and bone mineral density during lactation.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
400
Cholecalciferol (Vitamin D3) oral 1 tablet 35 µg per day. Placebo oral 1 tablet per day. In total 35 µg per day. In total 2 tablets per day per participant from Baseline to 16 weeks after delivery.
placebo 2 tablet, once a day,
Cholecalciferol (Vitamin D3) oral 2 tablets each containing 35 µg. In total 70 µg per day. In total 2 tablets per day per participant from Baseline to 16 weeks after delivery.
University of Aarhus, Aarhus Universityhospital
Aarhus, Denmark
RECRUITINGBirth Weight
Time frame: 0-24 hours after delivery of the child
Post-partum effects of vitamin D supplement on maternal bone mineral density (BMD).
Time frame: Day 1 to 4 months after delivery.
Infections of the newborn
Time frame: Day 1 of the child to 16 weeks after birth.
Growth of the newborn measured by weight, crown-heel length and head circumference
Time frame: Day 1 of the child to 16 weeks after birth
Time to accomplish pregnancy
Time frame: 0-12 months
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