Boron
What Huberman said
Huberman says there is some scientific support for boron freeing up more testosterone. The 5 to 12 mg a day range he restated in his conversation with Dr. Kyle Gillett was the guest's range, not his own recommendation.
Doses, as he worded them
“boron, 5 to 12 milligrams per day”[2]
Dr. Kyle Gillett's range (for lowering SHBG), restated by Huberman; not Huberman's own recommendation
Quoted, not prescribed. Talk to a doctor or pharmacist first if you take medication, are pregnant or have a health condition.
Safety notes from independent sources
- EFSA sets the upper limit for boron at 10 mg a day for adults, including in pregnancy and while breastfeeding, so 12 mg a day is above it. EFSA: Tolerable upper intake levels (2025)
Where he said it
- 1
“there's some scientific support for it, freeing up more testosterone.”
The Science of How to Optimize Testosterone & Estrogen
Episode · 01:43:23 · 2021
- 2
“and then boron, 5 to 12 milligrams per day.”
Dr. Kyle Gillett: Tools for Hormone Optimization in Males
Episode · 01:11:45 · 2022
Related
This page reports what Andrew Huberman has said. It isn’t medical advice and NSDR.co isn’t affiliated with Huberman Lab. Talk to a doctor or pharmacist first if you take medication, are pregnant or have a health condition. Safety information