How long to stop biotin before thyroid test?

Biotin, haan? Is that why my hair is suddenly looking better? 😂 Jokes apart, I remember my friend saying she had to skip her supplements for a few days before her thyroid panel. I guess it's like how you can't eat before some blood tests. For me, giving up chai for a few hours is harder than any supplement!

Hey! So for biotin, most labs and docs recommend stopping it for 2-3 days before a thyroid test. I track all my supplements in an app, and it even has a reminder for 'pre-test precautions' for this kind of thing. Definitely a good idea to halt it to get accurate numbers!

Been there, done that. I take biotin for my nails, and my endocrinologist always tells me to stop it for a full 72 hours, so three days before the blood draw. Anything less and the results can show a false high or low, making you worry unnecessarily. Just pause it for a few days, it won't harm you.

My doctor was very clear on this when I started biotin! She said biotin can interfere with the immunoassay tests used for thyroid hormones (like TSH, T3, T4). She advised me to stop taking any biotin-containing supplements for at least 48-72 hours before the blood test to ensure accurate results. Better to be safe than get misleading numbers.