Testosterone

Understanding Testosterone Replacement Therapy and Managing Side Effects
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13 min summary podcast: Introduction Hello everybody, Nelson Vergel here with ExcelMail.com. ExcelMail.com is a four-year-old forum, online site, with more than 14,000 members. Some of them are doctors, pharmacists, dietitians, exercise...
Optimizing Fat Loss and Muscle Preservation: Tirzepatide + Oxandrolone + TRT + Protein & Exercise
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This article outlines a comprehensive strategy for optimizing fat loss and muscle preservation, primarily discussed within the context of an online forum dedicated to men's health, ExcelMale.com. The core of the strategy involves a multi-faceted...
Testosterone Replacement Clinical Guide from ExcelMale.com
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ExcelMale.com Quick Guide: DIAGNOSIS OF HYPOGONADISM: Symptoms and signs suggestive of testosterone deficiency in men: A. More specific symptoms and signs • Incomplete or delayed sexual development, eunuchoidism • Reduced sexual desire...
Oral Testosterone Therapy in Men with Low Testosterone: A Comprehensive Review
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Introduction Background and significance Hypogonadism, characterized by low testosterone levels, is a significant clinical condition affecting a substantial proportion of the male population, particularly older men. The management of...
U-Shaped Association Between Testosterone and Fractures
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The occurence of fractures in an elderly population is a significant concern, so this study looked at the relation between the number of fractures and hormone levels, including testosterone. It found fractures were higher at both low and high...
Testosterone/Estradiol Ratio: The Hidden Key to Low Libido in Men with Sexual Dysfunction?
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Poster 149: Testosterone/Estradiol Ratio and Low Libido in Men with Sexual Dysfunction Title TESTOSTERONE: ESTRADIOL RATIO A STEP FORWARD TOWARDS THE UNDERSTANDING OF LOW LIBIDO IN MEN WITH SEXUAL DYSFUNCTION Authors Rodrigo Freddi, Rubens...
Metabolic benefits afforded by estradiol and testosterone in both sexes
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As we very well know T s metabolites estradiol and DHT are needed in order to reap full beneficial effects of testosterone. Ts metabolites estradiol and DHT are needed in healthy amounts to experience the full spectrum of testosterones...
Why Use hCG With TRT?- A Clinical Review
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Using hCG in Men on Testosterone Replacement Therapy (TRT) – A Clinical Review Introduction Exogenous testosterone replacement therapy (TRT) can profoundly suppress the hypothalamic-pituitary-gonadal (HPG) axis through negative feedback. By...
The Evolution of Testosterone Products in the U.S. (1935-2025)
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Thanks to Dr Sun for this diagram. Timeline details (left → right) YearProduct (image above/below the line)Form & delivery 1935-1937No product image—text block below the line: “Testosterone first synthesized” with a bullet list of early...
Shifting the Testosterone Treatment Paradigm with Oral Testosterone (Kyzatrex)
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Again you heard it here first! Nelson's domain the one and only! Very informative webinar on the use of the newer oral TU formulations. Testosterone therapy has long been dominated by injectable and topical formulations, but the landscape...
Testosterone Replacement Therapy (TRT) Facts Every Man Should Know
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Testosterone Replacement Therapy (TRT) can be life-changing for many men suffering with low testosterone symptoms. However, there are crucial facts that most men are not told by their physicians before they start TRT. Here are the top facts that...
Smoking Cessation's Effects on Male Hormonal Levels
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This scientific paper investigates the effects of smoking cessation on hormonal levels in men, specifically focusing on steroid hormones like testosterone, DHEA, DHEAS, cortisol, and sex hormone-binding globulin (SHBG). The researchers aimed 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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