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  1. L

    Cant donate due to low iron

    Wolverine, what symptoms did you have? My HCT is 54 right now. BP is ok, HR is ok. I do have a blistering headache, however. Trying to lower HCT with naringenin, grapefruit every day, and cutting my T dose. I'm also iron deficient (TIBC 450, ferritin 13), so can't donate blood.
  2. L

    Cant donate due to low iron

    Hi Vince, if iron is low, why use an iron chelator like IP6, which doesn't help the HCT problem, but makes the iron deficiency worse? Just curious...
  3. L

    Must I donate blood while on TRT?

    Thanks, Vince. I have iron anemia. But, my hematocrit is high. So I need to destroy RBCs, not get rid of iron. Does the IP6 nuke RBCs?
  4. L

    Must I donate blood while on TRT?

    I have been on topical Testosterone (T) for 35 years. I have dealt with high HCT using blood donation about 2-4 times a year. My doctor switched me to injections, 40mg every 3 days. My HCT shot up quickly. So going back to topical. The problem is my ferritin is 13 and TIBC is 475. Exhausted...
  5. L

    Low Ferritin After Donating Blood Too Frequently

    @Nelson Vergel Thanks for the links on erythrocytosis and TRT. I've been reading for the last 3 hours and its been very helpful. I want to give back, so I want to buy a couple of your books as a Thank You. Which ones do you recommend?
  6. L

    Low Ferritin After Donating Blood Too Frequently

    Thanks so much! I will try this immediately.
  7. L

    Low Ferritin After Donating Blood Too Frequently

    Well, that's very interesting. Thanks!
  8. L

    Low Ferritin After Donating Blood Too Frequently

    I have a similar problem. Trying to avoid erythrocytosis (HCT is high 50s), I donate frequently. After years of playing this game, my TIBC is 472, ferritin is 16, T is 919, FreeT 12.2, Estradiol 54, and exhausted all the time. So, plan is to reduce T, eat a grapefruit every day, DIM...
TRT Hormone Predictor Widget

TRT Hormone Predictor

Predict estradiol, DHT, and free testosterone levels based on total testosterone

⚠️ Medical Disclaimer

This tool provides predictions based on statistical models and should NOT replace professional medical advice. Always consult with your healthcare provider before making any changes to your TRT protocol.

ℹ️ Input Parameters

Normal range: 300-1000 ng/dL

Predicted Hormone Levels

Enter your total testosterone value to see predictions

Results will appear here after calculation

Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

DHT

Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

Free Testosterone

The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

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