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  1. M

    Another newbie

    Journey Log - 1 Hello again all! Today I began my TRT journey - Monday, October 7, 2013. Protocol: 100mg testosterone cypionate 1x/week. I've already revised this to 50mg 2x/week. I made this choice after reading Nelson's book, reading the posts and advice in the ******** group, and speaking...
  2. M

    Another newbie

    Thanks for the warm welcome gents! Gene - I did receive a diagnosis of hypogonadism - total T was 203, 221, 305 on three separate draws over almost 24-months. The 305 "outlier" was likely because of some supplements I had been taking during several months leading up to the last draw. I had...
  3. M

    Another newbie

    Greetings all, Introduction/about me: I'm a male, 42, married, with the required 2.2 children. For many, many moons, I've experienced the normal litany of low testosterone symptoms: fatigue depression (medicated) a Wile E. Coyote like anvil drop in sexual desire and performance obesity -...
  4. M

    Your Expectations as a Registered Member

    Nelson and ExcelMale team: First, thanks for putting this together. As a well-researched, but total newbie to actual TRT, my hope is that this forum becomes THE go-to place on the internet for ACCURATE TRT information. There are a whole host of forums and sites on-line that have 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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