Response to weekly Calcifediol in 4 months - RCT Aug 2022

Randomised Trial to Evaluate the Efficacy and Safety of Calcifediol vs Placebo in Subjects With Vitamin D Deficiency (WORFEROL) 

 PDF of the trial registration as of July 2021

Note: This is a test vs placebo, not vs standard vitamin D
Note: Study is looking at response in 16 weeks, rather than the very fast response reported in a single trial

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See also VitaminDWiki:  Note: Calcifediol = Calcidiol

• Vitamin D3 becomes Calcidiol which becomes Calcitriol
• Calcidiol increased blood levels of Vitamin D in one month (dogs) – Feb 2021
• Weekly response to semi-activated vitamin D slightly better than standard – RCT Nov 2019
  • seems like the Nov 2019 study is better - compares Calfediol to Vitamin D
• Semi-activated Vitamin D given weekly (used by Spanish COVID-19 trial) – US patent application Sept 2020
• COVID-19 defeated by calcifediol form of Vitamin D in Spain - pilot RCT Aug 29, 2020
• Is calcidiol a better form of vitamin D for some animals and maybe humans with liver problems
• Calcifediol (Calcidiol) might be a better form of Vitamin D for some people – May 2019
• Pigs have about 2X less variation in response to calcidiol as humans do to vitamin D – 2015
• Vitamin D levels might be raised very quickly the following chart is from a patent application
  • 

Getting Vitamin D into your body has the following chart

Calcidiol category listing has 48 items along with related searches

• Calcidiol is available only by prescription and is expensive
• 
• Has about a 1 month response time