Andrew Huberman· PhD
Biotin levels of taking a biotin supplementation of 300 micrograms or more for seven days can actually influence your lab assays for sex hormones or for any steroid hormone actually.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
Biotin levels of taking a biotin supplementation of 300 micrograms or more for seven days can actually influence your lab assays for sex hormones or for any steroid hormone actually.
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This is binding to the lab test. So, we're getting false reads on these labs. It's not changing in your body, but it actually, this is an REI board question, oral board question, is that it binds to the steroid assay. So, this can happen to estradi, to progesterone, to hCG, to TSH, to testosterone.