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  1. Nelson Vergel

    Defy Low T on Men's Health Week

    Defy Low T on Men's Health Week Posted on Tuesday, June 10, 2014 http://www.sbwire.com/press-releases/defy-low-t-on-mens-health-week-518342.htm Testosterone Blood Level Testing for $29 in Most US Cities Tampa, FL -- (SBWIRE) -- 06/10/2014 -- June is Men's Health Month, and leading up to...
  2. Nelson Vergel

    Another study links higher mortality with low testosterone blood level

    Late-onset hypogonadism and mortality in aging men. Authors Pye SR, et al. SJournal J Clin Endocrinol Metab. 2014 Apr;99(4):1357-66. doi: 10.1210/jc.2013-2052. Epub 2013 Dec 11. Affiliation Comment in J Clin Endocrinol Metab. 2014 Apr;99(4):1161-3. Abstract CONTEXT: Late-onset...
  3. Nelson Vergel

    The effects of soy and whey protein supplementation on acute hormonal responses

    For many resistance-trained men concerns exist regarding the production of estrogen with the consumption of soy protein when training for muscle strength and size. Thus, the purpose of this investigation was to examine the effects of soy and whey protein supplementation on sex hormones following...
  4. Nelson Vergel

    Please Add Reviews of Testosterone: A Man's Guide (from amazon.com)

    Available here As a physician who treats testosterone deficient male patients I have found Nelson's book so informatively and clearly written that I have recommended his book to medical colleagues. --Paul Bellman, MD, NY, NY I found this book to be very through, concise and educational. I...
  5. Excel Male

    Why Do I Feel So Tired on Testosterone ?

    Taken from the book: Testosterone: A Man’s Guide by Nelson Vergel If no improvements in fatigue are observed after 6 weeks of testosterone replacement, factors beyond hypogonadism may be present. Thyroid and adrenal function should be checked to ensure that those two glands are working...
  6. Excel Male

    Benefits of Treating Hypogonadism (Testosterone Deficiency)

    Information provided by Gene Devine What are the Benefits of Treating Hypogonadism? Sexual dysfunction and low libido are among the most easily reversible symptoms of hypogonadism. Systematic reviews of randomized, placebo-controlled clinical trials of testosterone in men, including older men...
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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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