I went in for labs and saw a notice there that Biotin could affects lab results. I tired to look it up but didn’t find what results are affected?
Anyone know details?

I will be following this post. I have been taking it for awhile now

I know it can affect thyroid function tests. Because my thyroid doesn't work and my meds have to be carefully calibrated based on the blood tests, I don't take biotin at all (although my doc said that he thought I could stop taking it for some period before my tests and it'd be OK - don't remember how long, and I don't really trust it).

https://www.thyroid.org/patient-thyroid-information/ct-for-patients/december-2018/vol-11-issue-12-p-3-4/

Thanks for the info notmyname! I have a really weird thyroid so I will keep this in mind when my blood work is coming up!

Well, poo! I just had labs drawn. I have taken 10,000 mcg Biotin daily for 6 months. I just looked at some articles that say it can interfere with not only thyroid tests, but some others as well. It takes about 5 days for thyroid test to return to normal levels after biotin is stopped. I stopped all my vitamins for only 1 day before the lab draw, as directed. I was really hoping to see some accurate results of my thyroid tests, but looks like it will have to be redrawn. I think I will stop the Biotin anyway. It did not prevent hair loss at all, and I now wonder if my recent energizer bunny manic state and inability to stay asleep is due to excessive biotin.

This ⬇️ from the Cleveland Clinic gives a pretty good overview of tests it might affect:

BIOTIN and TEST RESULTS

Biotin causes sleep issues? Hmm that’s been an issue with me lately.