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  1. S

    4 weeks into TRT, feeling worse/mood crashes.

    Your estradiol could be up, but it's strange because you are not on that high of a dose. I'm a little surprised honestly that you are on TRT, because none of your numbers are bad, and the dose you're on is a real replacement dose. Meaning you might not much higher, if at all, than before you...
  2. S

    Exercise and Prostate Cancer

    Thank you, this is encouraging information.
  3. S

    New Member-41, Trying to decide whether to do this

    I might, but I would be breaking the rules, and if I attracted enough attention to get tested (unlikely because I mostly do smaller, local races) I would get a ban just like him.
  4. S

    New Member-41, Trying to decide whether to do this

    I could definitely try that, but from what I've read it can take a few months of reduced training to make levels come back (if they are going to, and it's true that they might not). I got my levels tested 3 years ago when I was not training as much, and I was at 465 ng/dl. I have a friend who...
  5. S

    New Member-41, Trying to decide whether to do this

    Yes, my E2 was also very low, 9 pg/ml. I am definitely an endurance exercise addict. Basically a doctor told me have the male equivalent of when female endurance athletes train so hard their periods stop. It's tough because I really love the 6-7 hours of sleep, two workouts a day bike run swim...
  6. S

    New Member Intro 54yr old triathlete

    Hi, in a similar spot, just posted a new thread-endurace athlete, 41, fairly competitive, total T 252 ng/dl. But I am only prescribed 10mg cypionate a day a day. Still on the fence about whether to do it or not.
  7. S

    New Member-41, Trying to decide whether to do this

    Hello everyone, I am a 41 year old male, avid runner, biker and amateur but fairly competitive endurance athlete. I average 10-11 hours of pretty-intense cardio a week. I noticed that over the past five years my libido has decreased significantly-it's still there but nothing like it used to...
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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