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  1. I

    Possible to be healthy @ 250mg/week? What blood markers do you want to see?

    This is an open challenge to explore the possibility of walking the enhanced boundaries, while keeping absolutely all possible negative TOT side effects in check, especially anything related to health. The main question I am trying to answer via blood work, BP measurements, WIP lifestyle...
  2. Rock H. Johnson

    Metformin Decreases Aerobic Capacity, Muscle Mass and Testosterone

    I have been on 2x1000mg a day but I lost my endurance(Kun Khmer/Muay Thai training) and workout capacity/volume. I had no common sides from it, no diarrea etc, but felt physically limited. A strange feeling of being limited by the amount of energy the body had stored or could generate on the...
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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