It Wasn't The Iron. It Was The Coffee.
Every non-heme iron on the market — ferrous sulfate, bisglycinate, liquid iron, plant-based iron — has to push through the same front door in your gut called DMT1. And that front door is easy to block.
Coffee blocks it. Calcium blocks it. Tea blocks it. Breakfast blocks it. So you set alarms, skip your morning coffee, take it on an empty stomach — and your iron levels barely move.
Heme iron uses HCP1 — a separate transporter your body evolved to absorb iron from red meat. It doesn't compete with DMT1 at all. It doesn't care what you ate or drank.
That's why heme iron reaches your brain and your hair follicles even when regular iron can't get through.