This website is dedicated to the millions of thyroid patients who are being ignored and left to suffer unnecessarily, and to healthcare practitioners, who want to better serve those patients.

Vitamin D problems with taking it?

Sheila has asked me to comment on why some people have a problem with Vitamin D

Most people can tolerate massive amounts of Vitamin D but 1 in 300 may have a problem, so here is my understanding of the situation:

  • If you have Hyperthyroidism or a granulomous disease like Sarcoidosis you might be too sensitive to Vitamin D
  • If you have a condition like Coeliac or Crohn’s disease or Irritable Bowel Syndrome then you might have a genetic condition where you are insensitive to Vitamin D
  • There is also an interaction between gut health and sensitivity, so consider Probiotics
  • There may also be a lack of cofactors in your diet like Calcium, Magnesium and Vitamin K2

If you think that you might be too sensitive to Vitamin D and want to experiment, here are my suggestions:

  1. Read fully and carefully:
  2. Buy a pack of 25 microgram ( 1,000 IU ) Vitamin D3 tablets from a supermarket or pharmacy
  3. Take 1 a day for a week and note any effect.
  4. If you don’t have a problem, take 2 a day for the next week
  5. If you still don’t have a problem, take 4 tablets a day until you finish the pack
  6. If you are feeling any better, continue on 100 micrograms ( 4,000 IU ) a day for at least 3 months
  7. If you are still having a problem with this experiment after 1 month, go to your local health store and ask them about Probiotics, Calcium, Magnesium, Vitamin K2 & Zinc

    • Buy a 1-month supply of each of these and try them in turn
    • Ask them or research which foods contain lots of these nutrients and try them
    • Take 100 micrograms ( 4,000 IU ) of Vitamin D3 at the same time
    • Keep a health diary and note everything that changes

    Note that toxicity has almost never been seen in an adult taking less than 1,000 micrograms a day ( 40,000 IU ) a day for 3 months

    Also, take time to check out these websites which all have masses of information:

    Please report back here so that others may benefit from what you have learnt !

    Rufus Greenbaum


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