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Information on the latest vitamin D news and research.

Find out more information on deficiency, supplementation, sun exposure, and how vitamin D relates to your health.

I'm in my mid 30's and was prescribed 50,000 iu Vitamin D2 from my Endo. I'm supposed to take 1 pill weekly for 3 months. My levels are currently at 15 ng/mL. Is this a safe does to take of Vitamin D2. Endo says it fine. Also, wouldn't you excrete most of the Vitamin D out at 50,000 iu? I don't see how this would equate to 7150 iu a day if you only take it once a week.

Ask the Vitamin D Council

Asked by  phamforums93230500 on December 29, 2015


  • phamforums93230500
     phamforums93230500 on

    See title

    Answered by  phamforums93230500 on

  • IAW
     IAW on

    Research now shows us several things. One is that D2 is not the best and that humans should take D3. We also know now that it is much better to take Vitamin D on a daily basis rather than big amounts once a week or once a month. Most doctors are still working with outdated information.
    So I recommend not taking the D2 and substituting over the counter D3 and at about 7000-8000iu a day. Then someone should retest you in three months and at that point you can probably do a maintenance dosage of 5000iu per day. We recommend a minimum blood level of 50ng/ml to keep a person healthy and it usually takes about 5000iu a day to do this.
    I would also recommend reading http://www.vitamindcouncil.org/about-vitamin-d/vitamin-d-and-other-vitamins-and-minerals/.

    Answered by  IAW on