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My vitamin d-hydroxy blood levels measured 32 ng/mL in Feb 2015. I was told to supplement 3000 iud. When checked again 4 Mos later, it had risen to >96ng/mL, so I discontinued use of the supplement. My levels are now back down to 27.8 ng/mL as of Nov 2016. My doc told me to supplement 2000 iud. I am hesitant, as the information I'm seeing, does not seem to support such a rapid incline from the amount of supplementation. Would you suggest further investigation of this concern? Or is that a somewhat normal increase? If we should further investigate, what should we look at? Ana, ena, cbc, cmp, and sedimentation rates all came back normal. Thanks in advance.

Asked by  juliewhiteley198003358200 on December 3, 2016

Answers
  •  juliewhiteley198003358200 on

    See title

    Answered by  juliewhiteley198003358200 on

  • IAW
    Participant
     IAW on

    First thing I have to ask is the first time in 2015, four months later would be about June. Do you get outside at all in the spring and summer? Would Vitamin D from sunshine be in your 96ng/ml figure along with the 3000iu? If so then you may not need to take any Vitamin D or very little during the spring/ summer but increase your intake in fall/winter. Which would mean take more starting September 1st and less around March/April. The other thing to consider would be if you hit a “rainy” spell or something keeps you from getting the sunshine you normally get then take a supplement on those days.

    Answered by  IAW on
  •  juliewhiteley198003358200 on

    Yes, I have a small child, so I am outside when the weather is nice. However, that particular year was a flood year, so we had a tremendous amount of rain during the spring and summer, making it difficult to get much sunshine. I did wonder about the seasons, though.

    Answered by  juliewhiteley198003358200 on

  • IAW
    Participant
     IAW on

    Please make sure that your levels are actually measured as ng/ml and not nmol/l because there is a big difference. Levels will increase, though, if you take a supplement and also get sunshine. Even if you went over 100ng/ml, we already know that a level up to 150ng/ml is safe. The second thing is that on average if you do not replenish Vitamin D by supplement or sunshine, then whatever level you have will decrease by half every two weeks.
    So what you may want to do, if you can, is take 3000iu (or the 2000iu) again and get tested in 8 weeks. So in February if you get tested there should not be any sunshine in that figure. (This is provided you live at a latitude of 35 degrees or higher! If you do not, then let me know.) That would give you a better idea for winter time and if you really do get higher amounts out of taking a lower amount, then say most people would.
    Weight can also be a factor in Vitamin D so you do not happen to weigh a lot less than 150lbs?
    So I would not be concerned. You had no unusual symptoms when your level was high.

    Answered by  IAW on
  •  juliewhiteley198003358200 on

    Thank you for that information! I do only weigh 100 lbs or so. I did ensure the measuring method was the same in both tests. I expressed concern with my doctor, but did start supplements as well. If it does not sound like cause for cobcern, that is a big relief.

    Answered by  juliewhiteley198003358200 on

  • IAW
    Participant
     IAW on

    If Vitamin d causes a problem, it will give you symptoms.
    We usually recommend 1000iu for every 25lbs of body weight. I think at some point there may even be a genetic factor where two 100lb people may need two different amounts. It will take science a long time, I think, to decide this.
    If you can, come back and let me know what your level is next time, if it is taken in 8 weeks.

    Answered by  IAW on

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