Plenachol 40 000 IU Capsules - Summary of Product Characteristics (SmPC) by Auden Mckenzie (Pharma Division) Ltd (a subsidiary of Actavis PLC) SI units Conversion Calculator. Convert Immunoglobulin E (IgE) level to IU/L, ng/mL, ng/dL, ng/100mL, ng%, µg/L. Clinical laboratory units online conversion from conventional or traditional units to Si units. Lately, vitamin D seems like the Paris Hilton of the nutrition world. It’s always in the news and you don’t really know why. So, instead of wondering, I figured I would investigate the swarm of research and news surrounding vitamin D. Jarrow Formulas Vitamin D3 provides cholecalciferol, which is more biologically active than ergocalciferol (D2). Vitamin D3 is ultimately converted to its hormonally-active form, calcitriol, in the kidneys. Calcitriol enhances dietary calcium and phosphorous absorption, stimulates the synthesis of Each capsule contains: 1 000 IU Colecalciferol (equivalent to 25 micrograms vitamin D 3) Excipient with known effect: Azorubine, carmoisine (E122), used as capsule colouring, may cause allergic reactions. IU (international units) is based on the effect of a substance, not on its mass. The amount of mass for one IU varies from one substance to another. Introduction to Vitamins and Minerals. Vitamins are organic molecules that function in a wide variety of capacities within the body. The most prominent function of the vitamins is to serve as cofactors (co-enzymes) for enzymatic reactions. Die Hypervitaminose D folgt einer Überdosierung Vitamin-D-wirksamer Substanzen wie Calcitriol oder einer starken Überdosierung von Cholecalciferol. No - the doses are not the same. One IU of Vitamin D (Cholecalciferol) activity is equal to 0.025 mcg vitamin D (1 mg = 40,000 units). The patient taking 0.25mcg Calcitriol is taking the equivalent of 10 IU a day , therefore 10 x 7 = 70 IU / week Almost every expert recommends it. And everyone’s taking it. But what if we’ve been using it wrong? What if our vitamin D supplements aren’t really helping us at all?.