B complex: How does B complex interfere with the... - Thyroid UK

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B complex

NWA6 profile image
NWA6
8 Replies

How does B complex interfere with the blood tests. How’s and whys?? 🥂

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NWA6
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8 Replies
Lalatoot profile image
Lalatoot

The biotin in the B complex can affect the testing method.

humanbean profile image
humanbean

These two threads on the subject should help :

healthunlocked.com/thyroidu......

healthunlocked.com/thyroidu...

helvella profile image
helvellaAdministratorThyroid UK in reply to humanbean

Note that 10 milligrams mentioned in one of those links is a much higher dose than most of us would get from any B-complex. Last such I looked at was just 300 micrograms of biotin.

Macey2009 profile image
Macey2009 in reply to humanbean

Hi is 3-4 days enough for leaving off biotin? I only ask as i have my blood test on Monday. I forgot to stop and took it on Wednesday morning. Still deciding whether to rearrange the test 🙄

P. S i take igennus super b complex 1x daily

Lalatoot profile image
Lalatoot in reply to Macey2009

Think the recommendation is at least a week. I usually leave 2 weeks.

Macey2009 profile image
Macey2009 in reply to Lalatoot

OK thanks. It's just that link says 3-4 days but i read on here 7 days is best too

humanbean profile image
humanbean in reply to Macey2009

This thread mentions that Medichecks recommended staying off biotin for a week before tests after somebody asked them directly on the subject :

healthunlocked.com/thyroidu....

Macey2009 profile image
Macey2009 in reply to humanbean

Thank you ☺

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