Taking vitamin D2 might lower the body’s levels of the more efficient form of vitamin D, vitamin D3, according to new research from the University of Surrey, John Innes Centre and Quadram Institute Bioscience. Many people take vitamin D supplements to support their bone and immune health and meet the UK government recommendation of 10 micrograms (µg) each day, especially during the winter months.
There are two forms of vitamin D supplements available: vitamin D2 and vitamin D3. Researchers have found that taking vitamin D2 supplements can lead to a drop in the body’s concentration of vitamin D3, which is the form our bodies naturally produce from sunlight and use most effectively to raise overall vitamin D levels.
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If you are taking the common Vit D pills (cholecalciferol), it will not affect your blood test level. If you are taking calcifediol, it will definitely skewer the results … as it raises the level almost within the hour.
Your liver is not working well to convert it into the active form… just like mine. Try taking calcifediol instead… (but a lot less… no more than 10mcg per day)
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I just got my blood work back for Vitamin D…
Previously I was ranging between 72 - 98 nmol/L.
However, the reason why this test is so high is because the night before I accidentally took 5 x 10mcg of calcifediol… and as you know it will raise the vitamin D level very quickly. I will have to wait another 4 weeks before I take another blood test and then see if i can maintain around 110nmol/L by just taking 10mcg x2 a week, since we know the half life is about 2 weeks in calcifediol.
I bought a bottle of Swisse fast acting Vitamin D (calcifediol) from the local pharmacy for $14 AUD, which has 90x 10mcg tablets. Good to know that it works. I know my liver isnt the best organ to rely on for Vitamin D.