Andrew Huberman on Iron

“Iron and ferritin play a key role in the cell growth pathways that go from the stem cells to the stimulation of keratin within the hair itself.”

The Science of Healthy Hair, Hair Loss and How to Regrow Hair

“For women, the levels of iron you want are somewhere between 25 and 100, and for men, somewhere between 30 and 150.”

The Science of Healthy Hair, Hair Loss and How to Regrow Hair

“You don't just want to start popping iron supplements because too much iron can be toxic.”

The Science of Healthy Hair, Hair Loss and How to Regrow Hair

“The reduction in appetite is actually an attempt to reduce iron intake specifically because many bacteria and other forms of infection seem to thrive when levels of iron in the blood are high.”

Using Your Nervous System to Enhance Your Immune System