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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.

Hi! I'm a 51 year old female in excellent health except for inability to sleep though the night. I decided to have blood tests taken and everything normal except for vitamin d deficiency. My doctor prescribed Vitamin D2 50,000 IU once a week for 8 weeks, and then VD3 2,000 IU daily thereafter. After doing a little research it looks like I'm learning that VD3 is best vs. VD2. I read that if your doctor prescribes VD2 ask her to change prescription to VD3 as doctors typically prescribe VD2 as that's what pharmacies have in stock. When I called and asked the nurse to check with the doctor, she refused and said "Who are you going to believe? The internet or your doctor?" Can you give me any advice on what's the best to take for extremely low VD levels. Thank you so much! Jane

Ask the Vitamin D Council

Asked by  pfeifferjmp65603800 on January 15, 2016

Answers

  • pfeifferjmp65603800
    Participant
     pfeifferjmp65603800 on

    See title

    Answered by  pfeifferjmp65603800 on

  • IAW
    Participant
     IAW on

    Well Jane I hope you believe us and you were smart to research. Studies show Vitamin D3 is better for humans. Your doctor was trained to give D2 for a Vitamin D deficiency but times have changed. So you need to take the “Over the Counter”, D3 to solve your deficiency. If he said take 50,000 iu of D2 once a week you could just substitute 50,000iu of D3. Just so you know though, recent studies show taking it daily is better for you. So that’s about 7000-8000iu per day for 8 weeks. Then he should retest to make sure your levels have increased. Now the next thing doctor’s do not know is that research is telling us in order to stay healthy, humans need a blood level of 50ng/ml or higher. So if you get to that level or above, then you can probably take a maintenance dosage of 5000iu a day. I will tell you right now that 2000iu is not going to be enough. (The 5000iu is based on an average weight person of 150lbs.)
    You should read http://www.vitamindcouncil.org/about-vitamin-d/vitamin-d-and-other-vitamins-and-minerals/. Co-factors are very important!
    I guess when you see him again you could give him one of these following articles https://www.vitamindcouncil.org/blog/meta-analysis-looks-at-efficacy-of-d2-vs-d3/ or
    http://ajcn.nutrition.org/content/84/4/694.full. Maybe you should give one to the nurse too!
    Let me know if you have any more questions!

    Answered by  IAW on

  • IAW
    Participant
     IAW on

    Sorry I forgot to say that once you get your levels higher, you will be able to sleep better!

    Answered by  IAW on

  • pfeifferjmp65603800
    Participant
     pfeifferjmp65603800 on

    Thank you so much for answering me! Really appreciate the time you took…I also forgot to mention I have pain in my right knee joint and hips which I just believed to be arthritis as part of aging process. Now I know it’s from my lack of vitamin D. I’m so thankful for your time on this website!!!

    Answered by  pfeifferjmp65603800 on

  • IAW
    Participant
     IAW on

    Your welcome!
    I probably should say this more often but the Vitamin D Council is able to exist because of donations and memberships of $50.00 a year. Without them, they would not exist. So if you have the means and can, please donate!

    Answered by  IAW on