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How Should Vitamin D Be Taken To Avoid Side Effects?

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Posted on Tue, 18 Mar 2014
Question: hi. should I skip taking my vitamin d on some days inorder to avoid getting sensitive to it? I skip taking my multivitamin on weekends to avoid getting sensitive to it, should I do the same with vitamin D? I live in Canada and vitamin D deficiency is very common in Canada so that's why I'm on it.
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Answered by Dr. Shehzad Topiwala (23 days later)
Brief Answer: No Detailed Answer: It would not be a good idea to skip vitamin D on some days of the week. I want to assure you there is nothing such as the body getting used to it and having a lesser response to it's beneficial effects over time if taken chronically daily. The phenomenon you are describing is also called tachyphylaxis and downregulation in medical jargon and indeed occurs in select biologocal circumstances but has not been reported in the case of vitamin D treatment. Vitamin D is seemingly rampant worldwide and it is important to ensure adequate blood levels. I can understand why it is common in Canada too. Most importantly, go by the blood levels for vitamin D to guide your daily dosage requirement.
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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Dr. Shehzad Topiwala

Endocrinologist

Practicing since :2001

Answered : 1663 Questions

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How Should Vitamin D Be Taken To Avoid Side Effects?

Brief Answer: No Detailed Answer: It would not be a good idea to skip vitamin D on some days of the week. I want to assure you there is nothing such as the body getting used to it and having a lesser response to it's beneficial effects over time if taken chronically daily. The phenomenon you are describing is also called tachyphylaxis and downregulation in medical jargon and indeed occurs in select biologocal circumstances but has not been reported in the case of vitamin D treatment. Vitamin D is seemingly rampant worldwide and it is important to ensure adequate blood levels. I can understand why it is common in Canada too. Most importantly, go by the blood levels for vitamin D to guide your daily dosage requirement.