Blood test and vitamin supplements

[Mjpp84]

Hi all, following recent great advice on this group I started taking vitamin D and a Super B-complex (Igennus) to try and boost my levels. Will taking these vitamins have an impact on my blood testing and results ? And should I stop taking these prior to any testing ? Many thanks.

[SeasideSusie Remembering]

Mjpp84

You should take Vit D 4 hours away from your thyroid meds unless using an oral spray then it can be taken anytime, and your B complex 2 hours away from your thyroid meds.

Vit D needs to be taken with dietary fat (fattiest meal of the day) unless using an oral spray.

B Complex should be left off for 7 days before any blood test (including thyroid) as it contains Biotin and if the lab uses Biotin in the testing procedure (most labs do) it causes false results.

[Mjpp84 in reply to SeasideSusie]

Thank you for the advice and quick response. I take levothyroxine on waking with water (6-7am), at least one hour before caffeine and eating. I take vitamin D and B complex together with my lunch roughly 1pm, hopefully this is ok? Thanks for clarifying on B complex and blood tests.

[SeasideSusie Remembering in reply to Mjpp84]

As long as your lunch contains some dietary fat for the Vit D to be absorbed then that is fine. You can take B Complex at the same time, no problem.

[Mjpp84 in reply to SeasideSusie]

Many thanks SeasideSusie : )

[SlowDragon Administrator]

All thyroid tests should be done as early as possible in morning before eating or drinking anything other than water and last dose levothyroxine 24 hours before test