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Intervention - Vitamin D

Intervention = Give Vitamin D (or Mg, Omega-3, etc) to a portion of study participants and see what happens

  • Intervene with the group: one dose size, but sometimes intervene while varying the dose size
    • perhaps such that each individual exceeds the desired blood level (say 40 ng)
  • Group size: 50 to 500 people, but can be ~ 100,000 individuals ( Turkey- Rickets )
  • Vitamin D3, but sometimes an activated form ( Calcidiol, or Calcitriol)
  • Disease treatment, but sometimes disease prevention
  • Just Vitamin D (monotherapy), even though cofactors are very important, especially if > 4,000 IU

Note - some interventions use loading doses to restore levels quickly (days or weeks instead of months)
Which also includes small single dose of vitamin D - say 100,000 IU
Not listed - Trials which clearly used too little vitamin D or too short of period
The many reasons why Vitamin D trials fail – Oct 2020
US Clinical Trials with Vit D Intervention new since Jan 2018 453 as of Oct 2020

734 Intervention studies

See also
Some Intervention Trials which used Vitamin D a count of some of the trials- by health problem

Intervention - 2-30 days 231 items
Loading dose for Vitamin D 188 items
Proof that Vitamin D Works
Supplementing Vitamin D
Items in category Meta-analysis 565 items

Intervention - Vitamin D by date instead of by health problem

Studies in VitaminDWiki

Year Randomized
Interventions Meta-
2017- 4852
2016- 5140

Note: Govt recommendations in 2015 often ignored data after 2011

INTERVENTION categories include

Most-visited 20 pages in Intervention category in VitaminDWiki

Id Page Hits Last modification Creator Categories
6245 50,000 IU of Vitamin D every 2 weeks reduced gestational diabetes – RCT Feb 2015 326252
14 Jul, 2022 16:38
admin Pregnancy
Intervention - non daily
1855 Sepsis is both prevented and treated by Vitamin D 230718
20 Jun, 2022 15:40
admin Trauma and surgery
Cost savings with Vitamin D
1409 ALS treated by vitamin D 206808
01 Jul, 2021 15:45
Editor Intervention
5724 Restless Legs Syndrome dramatically reduced by vitamin D, etc 167209
24 Mar, 2022 13:04
admin Vitamin D and Magnesium
Vitamin D and Iron
1336 Proof that Vitamin D Works 161467
15 Jul, 2022 14:24
admin Overviews
Intervention - non daily
4597 Cluster headaches virtually eliminated in 7,000 people with high-dose vitamin D and cofactors - Feb 2022 157626
25 Feb, 2022 15:05
admin Vitamin D and Magnesium
Top news
Vitamin D and Omega-3
5053 Chronic Hives treated by Vitamin D - many studies 157183
05 May, 2021 14:54
admin Autoimmune
Top news
Quality of Life
5526 Gestational Diabetes reduced with 50,000 IU of vitamin D every 3 weeks and daily Calcium – RCT June 2014 151148
16 Apr, 2019 15:09
admin Pregnancy
Top news
Intervention - non daily
2729 Raynaud's pain decreased with 600,000 IU monthly vitamin D – RCT May 2012 145508
29 Apr, 2022 12:31
admin Pain - chronic
Intervention - non daily
3494 Respiratory infections reduced by 63 percent with 4000 IU vitamin D daily - RCT Dec 2012 145038
24 Sep, 2021 19:44
admin Breathing
3188 How often might 50,000 IU vitamin D be taken - results of clinical trials 140948
13 Dec, 2021 16:38
admin How much Vitamin D
Top news
691 Overview MS and vitamin D 136298
03 Feb, 2022 13:34
admin Multiple Sclerosis
339 Overview Diabetes and vitamin D 86822
21 Jul, 2022 01:47
admin Diabetes
5279 Video by Dr. Coimbra – 95 percent of auto-immune cured with vitamin D in high doses - April 2014 85942
09 Jul, 2019 15:16
admin Multiple Sclerosis
Books, videos on Vitamin D
Top news
4762 35,000 IU vitamin D daily for 6 months helped ALL psoriasis suffers (106 ng) – Brazil March 2013 69366
14 Jul, 2022 20:35
admin Psoriasis
Top news
813 Overview Kidney and vitamin D 58641
01 Jan, 2022 20:40
admin Kidney
3857 Autoimmune disorder patients in Brazil helped by vitamin D – video and Facebook – Nov 2012 56651
27 Jul, 2016 10:27
admin Multiple Sclerosis
Top news
4724 Overview COPD and Vitamin D 51346
09 Feb, 2022 21:49
admin Breathing
Intervention - non daily
3460 Vertigo treated by Vitamin D - many studies 47863
12 Jul, 2022 11:25
admin Seniors
Top news
Falls and Fractures
1421 Overview Tuberculosis and Vitamin D 47612
22 Mar, 2022 23:49
Editor Tuberculosis

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Intervention AND Bone (see also Rickets)

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Intervention AND Cancer - Breast

Intervention AND Cancer - Skin

Intervention AND Cardiovascular

Intervention AND Cognitive

Intervention AND Dental

Intervention AND Depression

Intervention AND Diabetes (see also Metabolic Syndrome)

Intervention AND Fertility/Sperm

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Intervention AND Gut

Intervention AND Headache

Intervention AND Hypertension

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Intervention AND Inflammation

Intervention AND Infant/Child (see also Rickets)

Intervention AND Kidney

Intervention AND Liver

Intervention AND Meta-analysis

Intervention AND Metabolic Syndrome (see also Diabetes)

Intervention AND Mortality

Intervention AND Multiple Sclerosis (see also Autoimmune)

Intervention AND Obesity (weight)

Intervention AND Optimum

Intervention AND Osteoporosis

Intervention AND Pain

Intervention AND Parkinson's

Intervention AND Pregnancy

Intervention AND Psorasis (see also Skin)

Intervention AND Rheumatoid Arthritis

Intervention AND Rickets

Intervention AND Seniors

Intervention AND Skin

Intervention AND Skin - Dark

Intervention AND Sleep

Intervention AND Sports

Intervention AND Stroke

Intervention AND TB

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Intervention AND Youth (see also Infant-Child)

Intervention AND Women (see also Pregnancy)

Intervention AND Loading Dose

Intervention - sorted by date


Short url = http://is.gd/GiveVitaminD

Intervention - Vitamin D        
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