Iron and folate testing : Hi How long do I need... - Thyroid UK

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Iron and folate testing

FunkyC profile image
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Hi

How long do I need to refrain from supplementing before retesting Iron and folate please ?

Thank you

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SeasideSusie profile image
SeasideSusieRemembering

FunkyC

Leave off iron (and no liver/liver pate/black pudding) for one week before testing.

Folate, just don't take it on the day until after the test if you are taking a stand alone folate supplement.

If you are taking a B Complex containing folate, check to see if it contains Biotin (B7). If so then leave off for 3-5 days as Biotin will skew the results if biotin is used in the testing procedure.

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