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  1. M

    Should we be taking Calcifediol instead of D3?

    Is calcifediol better than cholecalciferol for vitamin D supplementation? - Osteoporosis International "First, oral calcifediol results in a more rapid increase in serum 25OHD compared to oral cholecalciferol. Second, oral calcifediol is more potent than cholecalciferol, so that lower dosages...

    Looking for good quality vitamin d3 supplement cheap?

    hello i recently ran out off idealabs Calcirol (d3), is there anything close to the quality of this vitamin d3 on the market for a cheaper price? Previously, before discovering this forum i used some amazon non-gmo vitamin d3 softgels. I prefer the liquid d3 beacuse i can apply on skin and...
  3. haidut

    Vitamins D and E - the Taliban in the COVID-19 war

    Despite the massive censorship all over the Internet, there have been plenty of articles and studies on vitamin D and its role in COVID-19. Several studies reported that at least 9 in 10 of hospitalized patients have severe vitamin D deficiency. In addition, a few small studies demonstrated that...
  4. T

    Experiences with Jarrow Formulas vitamin D3 2500 IU?

    Hey all, I ordered Jarrow Formulas vitamin D3 2500 IU and I want to know if anyone has experiences with these. Here's the link to the product if it's allowed, if not, mods please delete it...
  5. Tristan Loscha

    Caffeine Decreases Vitamin D Receptor Protein Expression In Vitro

    J Steroid Biochem Mol Biol. 2007 Mar;103(3-5):368-71. Epub 2007 Jan 12. Caffeine decreases vitamin D receptor protein expression and 1,25(OH)2D3 stimulated alkaline phosphatase activity in human osteoblast cells. Rapuri PB1, Gallagher JC, Nawaz Z. Author information Abstract Of the various risk...