Nelson Vergel

Nelson Vergel

What is a Normal Blood Level of Testosterone? What Do Guidelines Say?

Jan 30

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Normal values may vary from lab to lab depending on what reference range they use. Depending on the country, ranges are in nanograms per deciliter (usually in the United States) or nanomoles per liter (Europe and other countries). The conversion...

Testosterone

Most Testosterone Booster Reviews on Amazon are Fake

Jan 28

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Testosterone Imposters: An Analysis of Popular Online Testosterone Boosting Supplements Abstract Introduction Testosterone-boosting supplements (T-Boosters) are prominently featured on Amazon.com, with numerous dedicated pages and claims that...

Supplements Testosterone

Sex Hormone Binding Globulin (SHBG): Is It Good or Bad?

Jan 24

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Table of Contents SHBG and the Free Testosterone Relationship What Causes High SHBG? Other factors that can contribute to high SHBG include: Get Your Levels Checked: SHBG Test, Free & Total Testosterone Test How to Lower SHBG Levels: Very Low...

Blood Tests Hormones

How to Predict Estradiol and DHT at Different Testosterone Doses

Jan 24

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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...

Blood Tests Estradiol Testosterone side effects TRT TRT blood tests

Does Testosterone Cause Prostate Cancer? Can Men Treated for Prostate Cancer Use TRT?

Jan 24

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This is an excerpt from my book Ensuring Prostate Health—No Link Found Between Androgen Levels and Risk for Prostate Cancer The prostate is a gland that is part of the male reproductive system. Its function is to store and secrete a slightly...

Testosterone side effects TRT

Can Testosterone Replacement Affect Kidneys?

Jan 22

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Creatinine is a chemical waste product that's produced by your muscle metabolism and to a smaller extent by eating meat. Healthy kidneys filter creatinine and other waste products from your blood. The filtered waste products leave your body in...

General Health Testosterone side effects

Exercise Tips for Best Fat Loss and Muscle Gain

Jan 20

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Exercise has long been praised for its role in hormonal regulation, especially when it comes to improving testosterone levels. While that is undoubtedly a significant benefit, the realm of exercise extends much farther than hormones alone. A...

Exercise Health & Wellness Mental Health

PT - 141 (Bremelanotide) for Improved Sex Drive (Libido) and Erections

Jan 20

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• Bremelanotide (PT 141) is a synthetic melanocortin compound • It is a ‘melanocortin receptor agonist’- activates melanocortin receptors in the body • ‘Melanocortins’ refer to a group of peptide hormones derived in the pituitary gland •...

Erectile Dysfunction Sex drive

Where to Get Therapeutic Phlebotomies to Lower High Hematocrit in the U.S.

Jan 18

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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...

Testosterone side effects TRT blood tests

Pregnenolone for Men: What We Need to Know

Jan 16

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Pregnenolone for Men: An Insight into this Neurosteroid and Male Health Introduction Pregnenolone, a naturally occurring steroid in the human body, has recently become a focal point in medical research, particularly concerning its effects on...

Blood Tests Hormones Supplements Testosterone side effects

TRT Side Effects: How to Prevent or Reverse Them

Jan 15

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This video discusses testosterone replacement therapy and its side effects. It covers various side effects such as high blood pressure, testicular shrinkage, fertility issues, and increased hematocrit levels. It also dispels myths about liver...

Testosterone Testosterone side effects TRT

Testosterone Drug Interactions

Jan 08

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TESTOSTERONE DRUG INTERACTIONS The interplay between medications and testosterone involves a complex network of biochemical interactions that can significantly affect a patient's health. Below is a detailed discussion of various medications and...

Testosterone

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