https://academic.oup.com/jsm/article/21/Supplement_1/qdae001.281/7600971 Abstract Introduction The benefits and risks of testosterone therapy (TT) have been a subject of long-standing debate. The recent TRAVERSE trial demonstrated that men...
I was able to come up with a table using the predictive model equation derived from data in this study: The Effects of Injected Testosterone Dose and Age on the Conversion of Testosterone to Estradiol and Dihydrotestosterone in Young and Older...
Understanding Therapeutic Phlebotomies to Lower High Hematocrit What is High Hematocrit? High hematocrit occurs when your body produces an increased number of blood cells, leading to thicker, more "viscous" blood. This condition strains the...
Starting testosterone next week. What should I expect? Nelson, I know you wrote the book "Testosterone: A Man's Guide". I was diagnosed with low testosterone and do not know if I should do injections or gels. Also, what should I expect when it...
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.
