Magno Blood Count
Ferritin on TRT
What the number means, why it moves on a protocol, and what people usually do about it.
What it is
Ferritin is stored iron. It is the number that quietly runs down on TRT when people donate blood to hold hematocrit, and low ferritin feels like flat energy and poor recovery.
The range
TRT-aware target
60 to 250 ng/mL
How to read the lab range
Lab ranges start as low as 20 to 30 ng/mL. People who donate aim to stay above 50 to 60, and under 250 to 300. Very high ferritin points at inflammation or iron overload, not at diet.
Why it moves on a protocol
- Repeated blood donations, the number one cause on TRT.
- Low dietary iron, heavy training, endurance work.
- Inflammation and fatty liver raise it without more iron.
What people usually do · not a recommendation
- Space donations at least eight weeks apart and do not donate on a low ferritin.
- Iron with vitamin C between donations; red meat and liver help.
- A high ferritin with normal transferrin saturation is inflammation; look at CRP and the liver.
How Magno reads it
Import the PDF or a photo of the report and Magno finds Ferritin on it, keeps every test on one line, shows the change since the last one, and reads it against TRT-aware thresholds rather than the lab's generic range. The panel it belongs to, Blood Count, gets a written verdict with the probable causes and what people usually do.
Read yours
Drop your lab PDF or a photo and get every marker read like this, in plain words. Free, no account, nothing leaves your browser. Save it in the app to see the change since your last test.
Questions people ask
Can I donate blood with low ferritin?
Blood services check hemoglobin, not ferritin, so they may let you. People on TRT hold off under about 50 ng/mL because the fatigue that follows is worse than a slightly high hematocrit.
Does low ferritin cause hair loss and fatigue?
Yes, both, well before anemia shows on hemoglobin.
Related markers
Not medical advice
This is how experienced TRT users read the number and what they usually do about it. Every decision about your protocol belongs to you and a clinician who knows you.