From Grassroots Health Newsletter March 2017
What effect might vitamin D have on hypertensive disorders during pregnancy?
Data from two clinical trials demonstrate a reduction in hypertensive pregnancy disorders with an increased vitamin D level (Wagner CL et al., Health characteristics and outcomes of two randomized vitamin D supplementation trials during pregnancy: a combined analysis. J Steroid Biochem Mol Biol. 2013 Jul;136:313-20.).
Among 505 pregnant women, there was a 56% reduction in risk of a hypertensive disorder at 40 ng/ml and a 65% risk reduction at 50 ng/ml.
- 22 participants (4%) were diagnosed with a hypertensive pregnancy disorder; 18 were diagnosed with hypertension and 5 were diagnosed with preeclampsia (1 was diagnosed with both).
- Among those diagnosed with a hypertensive pregnancy disorder, 73% had final 25(OH)D values below 40 ng/ml.
- For preeclampsia specifically, all five were below 40 ng/ml.
- There were no cases of hypertensive disorders among women with vitamin D serum levels above 60 ng/ml.
See also Vitamin D Life
Pages listed in BOTH the categories Pregnancy and Hypertension (preeclampsia)
- Preeclampsia (low vitamin D) doubles the risk of later cardiovascular problems – Sept 2019
- Preeclampsia 11X more likely if poor Vitamin D Binding Protein (South Africa) - Sept 2019
- Preeclampsia 2X more likely if poor Vitamin D Receptor – April 2019
- Preeclampsia reduced 1.7 X by aspirin (but reduced 7 X by Vitamin D) – Feb 2018
- Preeclampsia risk reduced 7X by 4,000 IU of Vitamin D daily – RCT March 2018
- Preeclampsia of offspring cut in half if mother who smoked had vitamin D fortified margarine – Dec 2017
- Preeclampsia reduced 2X by Vitamin D, by 5X if also add Calcium – meta-analysis Oct 2017
- Child 49 percent higher risk of being overweight if hypertension during pregnancy – Sept 2017
- Preeclampsia risk reduced 60 percent if supplement with Vitamin D (they ignored dose size) – meta-analysis Sept 2017
- Preeclampsia recurrence reduced 2 X by 50,000 IU of vitamin D every two weeks – RCT July 2017
- Preeclampsia is not reduced by vitamin D (if you ignore vitamin D level, dose size, frequency and duration) – July 2017
- Preeclampsia doubles the risk of mild cognitive impairment – July 2017
- No Hypertension during pregnancy if more than 60 ng of vitamin D – RCT
- Preeclampsia changes to Vitamin D Binding Protein reduces Vitamin D in placenta – Dec 2016
- Preeclampsia risk reduced by higher levels of vitamin D (VDAART 4,400 IU) - RCT Nov 2016
- MAGNESIUM IN MAN - IMPLICATIONS FOR HEALTH AND DISEASE – review 2015
- Preeclampsia 4X less likely if vitamin D levels increased by 8 ng during pregnancy – March 2016
- Pre-eclampsia 2X more likely if low vitamin D, unless adjust for vitamin D factors (BMI, skin color) – Dec 2015
- Preeclampsia and eclampsia associated with lower vitamin D, etc. – Sept 2015
- Preeclampsia increased risk of Congenital Heart Defects by 60 percent (vitamin D not mentioned) Oct 2015
- Preeclampsia reduced by Vitamin D (50,000 IU bi-weekly) and Calcium – Oct 2015
- Burkas reduce vitamin D levels, which causes pregnancy problems – Oct 2015
- Preeclampsia – hypothesis as to why vitamin D helps – June 2015
- Preeclampsia inversely proportional to serum Magnesium – Oct 2014
- Hypertension in pregnancy (preeclampsia) more frequent in winter (low vitamin D) – Jan 2015
- Preeclampsia rate cut in half by high level of vitamin D – meta-analysis March 2014
- Preeclampsia 40 percent less likely if mother had more than 20 ng of vitamin D – Jan 2014
- Preeclampsia 2.7X more frequent if low vitamin D – meta-analysis Sept 2013
- During pregnancy even 400 IU helps metabolic status – RCT July 2013
- 2X more preeclampsia when vitamin D less than 30 ng, etc. - meta-analysis March 2013
- 7X increase in early severe preeclampsia associated with low vitamin D – Aug 2012
- Preeclampsia 3X more likely if low vitamin D at 25th week – April 2012
- Low vitamin D results in severe preeclampsia and low birth weight – Mar 2011
- Women with low vitamin D 4X more likely to have preeclampsia in pregnancy – Nov 2010
- Seasonal variation in pregnancy hypertension is correlated with sunlight intensity -June 2010 no abstract