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Meta-analysis of Vitamin D

304 Total items in Meta-analysis category

See also Overview Meta-analysis of Vitamin D
See also Proof that Vitamin D Works

See also All items in category Intervention Vitamin D 438 items

See also Clinical Trials of vitamin D can have “biological flaws” – Jan 2015
See also Nice description of Meta-Analysis in Scientific American Jan 2014
See also The Misuse of Meta-analysis in Nutrition Research JAMA Sept 2017
". . . they have mixed apples and oranges—and sometimes “apples, lice, and killer whales”—yielding meaningless conclusions"
"In a 2007 review of 111 industry-funded (nutrition) studies, funding source was significantly related to study conclusions"

VitaminDWiki Comment on Sci American article

It does not mention the major problems of Vitamin D Meta-analyses.
1) Dose sizes are ignored: Studies assume benefit from 400 IU is the same as for 4,000 IU
2) Durations are ignored: Studies assume benefit of 1 month dosing is the same as 1 year dosing
3) Existing Vitamin D levels are often ignored.
  Studies ignore that a 20 ng addition to a 10 ng person has vastly more benefit than a 20 ng addition to a 40 ng person
A rare example of a good meta-analysis is: one on depression - April 2014

Really great medical studies do not blindly give a single supplment/drug to a group, but rather treat the patients as individuals and provide extra Magnesium, Vitamin K2, Omega-3, Vitamin C, etc as needed. These studies, which have the best results, are not Random Controlled Trials and are virtually never included in a meta-analysis.

Likewise, the trials which give vitamin D to an entire country, or to all of the patients (immoral not to do so) are never considered by any meta-analysis

Vitamin D has climbed the pyramid for decades, but has not yet reached the top

Vitamin D Pyramid
Intervention - Vitamin D includes the following:

Studies in VitaminDWiki

Year Randomized
Controlled
Trials
Interventions Meta-
analyses
2015698235
2014646348
2013816337
2012413839

Note: Govt recommendations in 2015 often ignored data after 2011

Table of contents

The TOP articles in Meta-analysis and Vitamin D

The Meta-analysis of Autism and Vitamin D

The Meta-analysis of BREATHING and Vitamin D

See also PubMed: Vitamin D and asthma in children: A systematic review and meta-analysis of observational studies
July 2017 3.4X more often in low vitamin D


The Meta-analysis of CANCER and Vitamin D

The Meta-analysis of Breast Cancer and Vitamin D

The Meta-analysis of Bladder Cancer and Vitamin D

The Meta-analysis of Colon Cancer and Vitamin D

The Meta-analysis of Prostate Cancer and Vitamin D

The Meta-analysis of Cardiovascular and Vitamin D

See also PubMed (behind paywallSerum 25-hydroxyvitamin D and the risk of cardiovascular disease: dose-response meta-analysis of prospective studies
April 2017, 34 publications with 180,667 participants, 10% less likely for each 10ng higher level of vitamin D


The Meta-analysis of Cognition and Vitamin D

The Meta-analysis of Depression AND Vitamin D

The Meta-analysis of Diabetes and Vitamin D

The Meta-analysis of Falls/Fractures

The Meta-analysis of Gut and Vitamin D 

The Meta-analysis of Hypertension and Vitamin D

The Meta-analysis of Inflammation and Vitamin D

The Meta-analysis of Kidney and Vitamin D 

The Meta-analysis of Loading Dose of Vitamin D

The Meta-analysis of Mortality and Vitamin D

The Meta-analysis of Multiple Sclerosis and Vitamin D

The Meta-analysis of Obesity and Vitamin D

The Meta-analysis of Pregnancy and Vitamin D

__See also PubMed: Pregnancy outcome and ultraviolet radiation; A systematic review May 2017 Free PDF online


The Meta-analysis of Psorasis and Vitamin D (see also Skin)

The Meta-analysis of Rheumatoid Artritis and Vitamin D

The Meta-analysis of Sports and Vitamin D

See also PubMed 3,000 IU of vitamin D for 12 weeks did not help Sports Performance - Meta-analysis June 2017

The Meta-analysis of Stroke and Vitamin D

The Meta-analysis of Trauma/Surgery and Vitamin D

The Meta-analysis of Tuberculosis and Vitamin D (see also Breathing)

The Meta-analysis of Vitamin D Receptor

All of the articles in Meta-Analysis - sorted by date


Short URL = https://is.gd/MetaD

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