50,000 IU of vitamin D weekly for 8 weeks of pregnancy raised most above 30 nanograms - RCT

Can weekly vitamin d dosing adequately treat vitamin d deficiency in pregnancy?

American Journal of Obstetrics and Gynecology, Volume 216, Issue 1, Supplement, January 2017, Pages S380-S381

Brianne Bimson, Lois Brustman, Zainab Al Ibraheemi, Kimberly Herrera, Barak Rosenn

Mount Sinai West Hospital, new york, NY

This is 1 of 875 posters to be presented at 37th Annual Meeting of the Society for Maternal Fetal Medicine - Jan 2017

Behind a $36 paywall - which I paid

Publisher provided no abstract

• Both arms of the RCT got 400 IU daily

• Vitamin D levels were measured 8 to 12 weeks after the start of the trial

• No indication why they stopped the Vitamin D supplementation at 8 weeks

  • As would be expected the vitamin D levels dropped a lot after the supplementation stopped

• Average level achieved at 8 weeks was 48 nanograms

• Some got above 70 nanograms

  • This is probably due to taking the vitamin D sample within a few days of the last 50,000 IU dose

• 2 had their vitamin D levels drop

• 84% became vitamin D sufficient at 8 weeks (> 30 ng)

• No indication that they recorded the outcome differences between the RCT ARMS

  Have thought about this study for a day and have not been able to come up with a single reason for the study

See also VitaminDWiki

Healthy pregnancies need lots of vitamin D has the following summary

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