Cardiovascular risk markers not helped by 20,000 IU of vitamin D weekly – RCT May 2018

Vitamin D supplementation does not improve CVD risk factors in vitamin D insufficient subjects.

Endocr Connect. 2018 May 15. pii: EC-18-0144. doi: 10.1530/EC-18-0144. [Epub ahead of print]
Kubiak JM1, Thorsby PM2, Kamycheva E3, Jorde R4.

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Study supplemented those with low vitamin D with 20,000 IU weekly for just 4 months
   20,000 IU weekly = 2,900 IU daily
Many studies are recommending that everyone needs at least 4,000 IU daily for health


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Cardiovascular category is associated with other categories: Diabetes 31, Omega-3 31 , Vitamin K 25 , Intervention 22 . Mortality 20 , Skin - Dark 18 , Magnesium 17 , Calcium 14 , Hypertension 14 , Trauma and surgery 13 , Stroke 13 , Kidney 12 , Metabolic Syndrome 11 , Seniors 10 , Pregnancy 8 as of Aug 2022


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Overview Diabetes and vitamin D contains the following summary

  • Diabetes is 5X more frequent far from the equator
  • Children getting 2,000 IU of vitamin D are 8X less likely to get Type 1 diabetes
  • Obese people get less sun / Vitamin D - and also vitamin D gets lost in fat
  • Sedentary people get less sun / Vitamin D
  • Worldwide Diabetes increase has been concurrent with vitamin D decrease and air conditioning
  • Elderly get 4X less vitamin D from the same amount of sun
        Elderly also spend less time outdoors and have more clothes on
  • All items in category Diabetes and Vitamin D 551 items: both Type 1 and Type 2

Vitamin D appears to both prevent and treat diabetes

Number of articles in both categories of Diabetes and:

  • Dark Skin 24;   Intervention 56;   Meta-analysis 40;   Obesity 36;  Pregnancy 44;   T1 (child) 39;  Omega-3 11;  Vitamin D Receptor 24;  Genetics 13;  Magnesium 29    Click here to see details

Some Diabetes studies

50 ng of Vitamin D fights Diabetes

T1 Diabetes

Pre-Diabetes

Diabetes, Metabolic Syndrome and Magnesium - many studies


Diabetes category starts with the following

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see also Overview Diabetes and vitamin D  Overview Metabolic Syndrome and vitamin D

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Hypertension category listing contains the following

165 items in the category HYPERTENSION

see also
Overview Overview Hypertension and Vitamin D
Overview Cardiovascular and vitamin D
Overview Stroke and vitamin D
Incidence of 22 health problems related to vitamin D have doubled in a decade
Some interesting Hypertension studies

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OBJECTIVE:
Low serum 25(OH)D levels are associated with cardiovascular disease (CVD) and some of its risk factors. However, in interventional studies the effects of vitamin D supplementation have been uncertain, possibly due to inclusion of vitamin D sufficient subjects. Our aim was therefore to examine effects of vitamin D supplementation on CVD risk factors in vitamin D insufficient subjects.

DESIGN: Double-blinded randomized controlled trial.

METHODS: A four months interventional study with high dose vitamin D (100 000 IU loading dose, followed by 20 000 IU/week) or placebo with measurements of:

  • blood pressure,
  • lipids (total-, LDL- and HDL-cholesterol, triglycerides, apolipoproteins A1 and B ), and
  • glucose metabolism parameters
    (blood glucose,HbA1c, sRAGE (minor improvement), insulin, C-peptide, and HOMA-IR).

RESULTS:
422 subjects with mean serum 25(OH)D level 34 nmol/L were included, with 411 subjects completing the study. Serum 25(OH)D levels increased with 56 nmol/L and decreased with 4 nmol/L in the vitamin D and placebo group, respectively. We found no statistically significant differences between the two groups in any of the measured CVD risk factors, except for a minor increase in sRAGE in the vitamin D group.
Stratified analyses of subjects with low baseline serum 25(OH)D levels alone, or combined with blood pressure, lipid and HOMA-IR values above the median for the cohort, did not skew the results in favour of vitamin D supplementation.

CONCLUSION: Supplementation with vitamin D in subjects with baseline vitamin D insufficiency does not improve CVD risk factors profile.

PMID: 29764903 DOI: 10.1530/EC-18-0144

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