Magno
Blood Count
Ferritin on TRT
What the number means, why it moves on a protocol, and how it sits with related markers.
What it is
Ferritin is stored iron. It can quietly run down on TRT when people give blood to hold hematocrit, and low ferritin can feel like flat energy and poor recovery.
The range
How to read the lab range
Lab ranges start as low as 20 to 30 ng/mL. Very high ferritin points at inflammation or iron overload, not at diet.
Why it moves on a protocol
- Repeated blood donations, the most common cause on TRT.
- Low dietary iron, heavy training, endurance work.
- Inflammation and fatty liver raise it without more iron.
How Magno reads it
Magno keeps every test on one line, against your lab's range, with the change since last time. Pro explains it in plain words. Get Magno for iPhone.
Read yours
Drop your lab PDF or a photo and get every marker explained in plain words. Free, no account, your file never leaves your browser. Track it in the iPhone app to see the change since your last test.
Questions people ask
Do blood services check ferritin?
Most check hemoglobin, not ferritin, so stores can run low without anyone flagging it. Worth raising with your doctor if you give blood regularly.
Does low ferritin cause hair loss and fatigue?
It can cause both, sometimes before anemia shows on hemoglobin.
Related markers
Not medical advice
This explains what the number is and why it moves. It is not medical advice; decisions belong to you and your clinician.