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[Jjumper]

Hello
Can anyone advise me…

I’m having a private blood test to check thyroid for a number of symptoms I have which look a lot like hypothyroidism. I’m having the test at 8am. Should I avoid eating and drinking beforehand? I’ve not been advised to by the company doing the test but I’m sure I’ve heard people mention on here that they usually do, so I wanted to check.

I’ve had lots of NHS thyroid tests in the past which always show normal TSH and a T4 on the low end of the normal range. Just want to try to get the most accurate numbers possible this time.
Thanks so much!

[sheila99]

I was advised not to eat. I can't remember if there was advice about drinking but as mine was early in the morning I didn't anyway.

[SundayGirl]

Always have thyroid blood tests before 9am.
Nothing to eat or drink except water.
If you take any supplements with biotin, stop taking them for a few days beforehand. Biotin can sometimes interfere with the testing process depending on how the blood is tested and give false results.

Good luck.

[Jjumper]

Thank you both so much. Really helpful.

[VioletAquarius]

Ive been having a blood test every year for the past 20 odd years and never once have I been told not to eat or drink beforehand.

I'm certainly going to ask about this at my next one.

[star35]

My DH has regular test and he has never been told not to eat and drink, only time he has to not have anything is when they do a glucose test. I will get him to ask next time just in case he has been doing it wrong all this time.