Nelson Vergel

Nelson Vergel

Founder, Excel Male Forum
Author: Books

Natural Thyroid Medicine Under Threat by the FDA: DTE And Your Options

Sep 16

The FDA just made a decision that could strip away affordable thyroid treatment for thousands of Americans - without public input, without proper science, and based on a petition from a drug company that wants a monopoly. This affects YOU if...

Blood Tests Chronic Illnesses Fatigue Men's Health Thyroid Weight Loss Women's Health

List of Peptides, Their Use, and Common Dosages

Sep 15

List of peptides and other molecules, their uses, and commonly used dosages. Adipotide (FTPP) - Targets blood vessels in fat tissue to promote fat loss by cutting off blood supply to adipose tissue. Dose: Highly experimental, no established safe...

Fat Loss Men's Health Muscle Gain Peptides

The FDA is seeking your comments on black box warning for women's hormone therapy

Sep 09

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The FDA is seeking comments on black box warning for women's hormone therapy The FDA is currently seeking public comments regarding the black box warning on women’s hormone therapy products for menopause. Here’s what you need to know...

Hormones Women's Health

How to Prevent and Reverse Erectile Dysfunction

Sep 03

How to Prevent and Reverse Erectile Dysfunction: Your Complete Guide to Getting Hard and Staying Strong Bottom Line Up Front: You don't have to accept erectile dysfunction as your new reality. Whether you're dealing with occasional difficulties...

Blood Tests Erectile Dysfunction Health & Wellness Men's Health Sex drive Testosterone

Factors Involved in Sex Drive and Erection Quality: Beyond Testosterone

Aug 31

The Complex Neurochemistry of Male Sexual Function: Understanding the Biological Foundations of Desire and Performance Male sexual function represents one of the most intricate orchestrations of neurochemical, hormonal, and physiological...

Blood Tests Erectile Dysfunction Hormones Men's Health Sex drive TRT

How Your Circadian Clock Genes Affect Your Testosterone- Deep Dive

Aug 27

This Beyond Testosterone podcast episode comes from an academic review article from the Asian Journal of Andrology, published in September-October 2025. This article, titled "Regulation of testosterone synthesis by circadian clock genes and its...

Erectile Dysfunction Fatigue Fertility Hormones Men's Health Sleep Quality Testosterone

Thyroid Tests and What They Mean

Aug 26

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Thyroid Blood Tests and What They Mean Your thyroid gland is a small, butterfly-shaped gland in your neck that plays a big role in controlling your energy, metabolism, and overall health. When the thyroid is not working properly, you may develop...

Blood Tests Fatigue Hormones Men's Health Thyroid Women's Health

Learn Quickly About Testosterone Deficiency and Its Treatments

Aug 14

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I hope you enjoy this part 1. Yes, it is almost 2 hours long but I concentrated everything I know so that you do not have to read for hours. What is low testosterone (hypogonadism) and how is it diagnosed? Low testosterone, or hypogonadism...

Blood Tests Erectile Dysfunction Estradiol Fertility High Hematocrit Men's Health Testosterone Testosterone side effects TRT TRT blood tests TRT Doctors

Testosterone Therapy in Pre- and Post-Menopausal Women: Deep Dive

Aug 08

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Testosterone Therapy in Pre- and Post-Menopausal Women Testosterone Therapy for Women: Indications and Evidence (2010–2025) Low Sexual Desire (HSDD) and Sexual Function Evidence: Multiple randomized controlled studies (RCTs) and meta-analyses...

Blood Tests Sex drive Testosterone TRT Women's Health

Ibogaine: Promise and Practicalities for Transforming Addiction Treatment

Aug 05

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Ibogaine: Promise and Practicalities for Transforming Addiction Treatment Ibogaine is rapidly garnering attention as a potentially revolutionary treatment for addiction and related mental health disorders—a beacon of hope in landscapes often...

Health & Wellness Men's Health Mental Health

Comprehensive Analysis of Testosterone Carrier Oils: Formulations, Clinical Implications, and Emerging Developments

Aug 02

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The selection of carrier oils in testosterone formulations represents a critical yet underappreciated aspect of hormone replacement therapy. This report synthesizes data from pharmaceutical manufacturers, clinical reports, and patient experiences...

Hormones Products Testosterone Testosterone side effects TRT

427-Page Illustrated Book: Beyond Testosterone

Jul 28

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I am very pleased to announce that I finally finished my full color 427-page booK: Nelson Vergel's "Beyond Testosterone: The Illustrated Guide" and the associated free online resource at Excelmale.com serve as comprehensive guides to...

Anabolic Agents Blood Tests General Health HCG Health & Wellness High Hematocrit Hormones How to Guides Men's Health Mental Health Testosterone Testosterone side effects TRT TRT blood tests

TRT Hormone Predictor Widget

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