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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 work midnights, so I take 10,000iu of vitamin D3 daily. I have been taking this for approximately 6 months. I recently found out I am pregnant. Is the 10,000 iu daily too much for me being pregnant? Also, what are the risk factors involved in someone that receives too much? Are there more risk factors for the fetus if it gets too much?

Ask the Vitamin D Council

Asked by  dosh_k57293600 on May 1, 2016


  • dosh_k57293600
     dosh_k57293600 on

    See title

    Answered by  dosh_k57293600 on

  • IAW
     IAW on

    If you have not already please read http://www.vitamindcouncil.org/about-vitamin-d/vitamin-d-and-other-vitamins-and-minerals/.
    No, the 10,000iu is definitely not too much!
    If you were not pregnant, I sometimes tell people that you would have to take 40,000iu a day for months in order to “maybe” become toxic. We also know that having a blood level of 150ng/ml is safe even though the upper end of the range is 100ng/ml. I give them this information to hopefully ease their minds.
    Above I said if you were not pregnant because pregnancy requires more Vitamin D and not less.
    If someone takes way too much Vitamin D then they usually become hypercalcemic. Again if no pregnancy is involved the treatment is to stop the Vitamin D and stay out of the sun until you revert back to normal. There are no lasting effects. I assume there probably are risk factors to a fetus under those conditions.
    You might like to read http://www.vitamindcouncil.org/further-topics/vitamin-d-during-pregnancy-and-breastfeeding/. Within that article it talks about recommended amount of 6000iu (forget the 4000iu) and an upper limit of 10,000iu. I remember Dr. Cannel not too long ago saying that they should probably be recommending the 10,000 iu as standard due to a study that was done.
    This you may find fascinating. Dr. Cannell once wrote “More than 60 years ago, based on the science of the time (science that has stagnated for 60 years), Dr. E. Orbermer of Italy wrote the following: “Until further experimental evidence, adequate and incontrovertible, is made available, I submit that we should play for safety. In a climate like that of England every pregnant woman should be given a supplement of vitamin D in doses of not less than 10,000 IU per day in the first 7 months, and 20,000 IU (per day) during the 8th and 9th months.”
    Please let me know if you presently weigh a lot more than 150lbs because you may need more than the 10,000iu. Have you had your Vitamin D level tested either before or after becoming pregnant?
    If you have more questions, ask. You may also want to check back here over the next week to see if anything was added.

    Answered by  IAW on