Vitamin D and Thyroid Patients, you need to know about Vitamin D

  • Vitamin D is fat-soluble, which means your body has a hard time getting rid of it if you take too much. The Vitamin D Council recommends taking no more than the upper limit of 10,000 IU/day for adults, though some researchers consider this conservative.  Signs of toxicity are low appetite, nausea, vomiting, thirst, excessive urination, weakness and nervousness.
  • The way that vitamins and minerals work in your body is interconnected. How well vitamin D works depends on the amount of other vitamins and minerals that are present in your body. The other vitamins and minerals needed to help vitamin D work well are called cofactors and, without these cofactors, supplementation can have undesirable effects. Vitamin D has a number of cofactors.  According to the Vitamin D Council and others, the ones listed below are the most critical and should not be overlooked:
    Magnesium
    Vitamin K2
    Zinc
    Boron
    Vitamin A
  • Most important for those of us who are hypothyroid, the symptoms of low vitamin D can look like low thyroid, such as fatigue and general aches and pains.  Since vitamin D is critical for bone health, adequate levels may be necessary to prevent bone problems often associated with poor thyroid hormone replacement with T4-only.  Plus, vitamin D levels (along with levels of iron and cortisol) need to be optimal for thyroid receptors to respond properly and for thyroid medications work properly.
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