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    Decreasing High Hematocrit: Genistein is an agonist of hepcidin

    Hello: Hematocrit increase is a very known side of TRT. Some studies conclude that testosterone reduces hepcidin (an hepatic hormone) which is related with iron absorptions paths. When hepcidin is reduced erythrocytosis is increased: Testosterone suppresses hepcidin in men: a potential...
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    How much reduction in hematocrit would be expected with a blood donation???

    Hello: In this topic it is said that: "A phlebotomy of one pint of blood will generally lower hematocrit by about 3 percent" https://www.excelmale.com/forum/threads/how-to-manage-high-hematocrit-caused-by-testosterone-replacement-therapy.137/ A reduction of a 3% was that I was expecting to...
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    High hematocrit. Phlebotomy needed

    Hi: I'm in TRT. Today I've received my blood test results. My hematocrit is very high (54.7%). I was thinking to make myself a 600 cc phlebotomy. It is not be not the first time I have been done it. It's not too much complicated for me. It is possible to do it or is it too much quantity for...
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    Very bad blood test results by excessive exercise

    Hello: I'm a user of this forum from Spain. I'm 51. There is a long time I didn't post anything because all was going fine just to the last friday. First of all I want to give thanks to this forum because here I learnt that it is much better to distribute 250 mg cypionate testosterone in 4...
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    Cypionate vs gel testosterone (questions)

    Hi: First of all, I need to say that I'm very grateful this forum. One year ago, here I learnt how to distribute one ampoule of cypionate 250 mg (2 ml) in 4 insulin syringes and how to use them each 3.5 days. This is really a good system to avoid the rollercoaster state produced when using 250...
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    Opinion about testosterone undecanoate??

    Hi: I've been 5 years in TRT. The first 4 years I've been on Nebido (called Reandron in Spain) each 8 weeks. This is 1000mg testosterone undecanoate in a 4ml big shot. The results were not bad about testosterone blood levels and I arrived at the end of the 8-weeks cycle with a not bad 7 ng/mL...
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    Problem with polycythemia

    Hi: I'm 50 years old and I'm on TRT. 250 mg cypionate each 15 days since 4 years ago. The problem is my hematocrite is high (between 52 and 55). I feel fine with no problems, no headache, a lot of energy, and sex drive. I understand that such a high hematocrite is on risk of cardiovascular...
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    Hello from Spain

    Hi: I'm a 50 years old bodybuilder from Spain. I found this fourm looking for information about a problem with polycythemia. Not too much high hematocrite but I want information. Thanks you all for any information.
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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