Magno Vitamins & Minerals
Vitamin D (25-OH) on TRT
What the number means, why it moves on a protocol, and what people usually do about it.
What it is
Vitamin D (25-OH) is the storage form measured in blood. It matters for testosterone production in men not on TRT, bone, mood and immune function.
The range
TRT-aware target
40 to 80 ng/mL
How to read the lab range
Labs call 20 to 30 ng/mL (50 to 75 nmol/L) sufficient. People aim for 40 to 60 ng/mL (100 to 150 nmol/L). Above 100 ng/mL is more than anyone needs.
Why it moves on a protocol
- Indoor life, winter, darker skin.
- Body fat stores it away.
- Very low fat diets cut absorption.
What people usually do · not a recommendation
- D3 at 2000 to 4000 IU a day with K2 and a meal usually gets there in two to three months.
- Retest after three months, then yearly.
How Magno reads it
Import the PDF or a photo of the report and Magno finds Vitamin D (25-OH) 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, Vitamins & Minerals, 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
Does vitamin D raise testosterone?
Correcting a deficiency helps in men making their own. On TRT it does nothing for the number and everything for bone and mood.
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.