Stopping vitamin supplements before a thyroid test - Thyroid UK

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Stopping vitamin supplements before a thyroid test

Happywalker profile image
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I am due for an annual thyroid test as my medication needs reviewing. I take vitamin D, omega 3 (fish oil), magnesium glycinate and vitamin B complex supplements. I know that I should stop taking the vitamin B tablets as they contain biotin but what about the other supplements? Should I stop taking them all? Please advise me on this issue.

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Happywalker
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SeasideSusie profile image
SeasideSusieRemembering

Happywalker

The only ones that need to be left off for 7 days is Biotin (as in a B Complex) and iron if having ferritin/iron tested. Other than that, just don't take the others until after the blood draw.

Happywalker profile image
Happywalker in reply to SeasideSusie

Thank you so much for this information. I am especially relieved I don't have to stop the magnesium. Thank you for replying.

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